FOUS56 KMTR 181800 PFMMTR Point Forecast Matrices National Weather Service San Francisco Bay Area 1100 AM PDT Mon May 18 2026 CAZ510-182300- Concord Airport-Contra Costa CA 37.99N 122.05W Elev. 23 ft 1100 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 90 57 91 57 90 Temp 76 86 89 82 68 60 57 63 79 90 90 80 68 60 57 61 79 89 87 Dewpt 27 25 23 28 34 34 35 33 30 26 29 32 34 40 43 43 42 38 37 RH 16 11 9 14 28 37 43 32 17 10 11 17 28 47 59 51 27 17 17 Wind dir N N N NW W W N N N N NW W SW SW SW N N W W Wind spd 17 12 10 6 5 1 0 0 8 8 11 9 5 4 2 0 0 9 11 Clouds CL CL CL CL CL CL CL CL CL CL CL CL CL FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 54 88 53 80 52 76 52 76 Temp 63 54 76 84 61 53 71 77 58 53 70 73 58 53 69 73 Dewpt 45 47 46 44 48 49 49 49 51 50 51 51 52 50 51 49 PWind dir SW W SW SW SW SW SW SW Wind char GN LT GN GN GN GN GN GN Avg clouds FW FW FW CL CL FW FW FW FW SC SC FW FW SC SC FW PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ508-182300- Hayward Airport-Alameda CA 37.66N 122.12W Elev. 46 ft 1100 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 55 83 55 80 Temp 73 81 82 73 64 58 55 59 74 81 80 71 62 58 56 59 71 78 76 Dewpt 31 31 37 36 38 38 37 37 34 34 40 37 40 40 41 43 44 45 48 RH 21 16 20 26 38 47 51 44 23 18 24 29 44 51 57 55 38 31 37 Wind dir N N W W W SE E N NW NW W W SW SW SW N W W W Wind spd 16 12 14 11 6 3 2 0 6 11 12 6 3 3 1 0 4 12 12 Clouds CL CL CL CL CL CL CL CL CL CL CL CL FW FW FW SC FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 54 77 53 74 53 72 53 70 Temp 59 54 69 74 58 54 66 71 58 54 66 69 57 54 65 68 Dewpt 48 47 48 50 49 48 50 51 51 50 53 52 52 50 52 52 PWind dir W W W W W SW W W Wind char LT LT GN LT GN GN GN GN Avg clouds FW FW SC CL FW SC SC FW FW SC B1 FW FW SC B1 FW PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ510-182300- Livermore Airport-Contra Costa CA 37.70N 121.84W Elev. 397 ft 1100 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 53 90 55 90 Temp 73 83 86 79 64 57 53 59 76 87 89 78 64 58 55 60 79 89 88 Dewpt 25 24 21 28 33 31 29 26 25 22 25 31 32 31 33 32 34 32 34 RH 17 11 9 15 31 37 39 28 15 9 10 18 30 36 43 35 20 13 15 Wind dir NE N N NW SW N N N NE N NW W SW N N N N W W Wind spd 14 13 13 9 5 0 0 0 6 9 11 8 4 0 0 0 0 9 13 Wind gust 26 Clouds CL CL CL CL CL CL CL CL CL CL CL CL FW CL FW SC FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 54 89 52 86 51 82 50 79 Temp 63 54 77 87 62 53 74 83 60 52 73 80 58 51 70 77 Dewpt 42 41 41 41 46 44 44 46 49 48 49 50 51 49 50 49 PWind dir SW W W W W W W W Wind char LT LT GN LT GN LT GN GN Avg clouds FW CL FW CL CL FW SC CL CL FW SC CL CL FW SC FW PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ513-182300- Moffett Field-Santa Clara CA 37.42N 122.05W Elev. 33 ft 1100 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 55 82 56 80 Temp 71 78 80 70 63 58 55 59 73 80 81 70 63 58 56 59 72 79 79 Dewpt 30 32 36 38 33 39 39 40 34 35 40 38 33 38 39 43 45 47 48 RH 22 19 20 31 32 49 55 49 24 20 23 31 32 47 53 55 38 32 34 Wind dir N NW NW NW W N N N NW NW NW NW N N N N NW NW W Wind spd 12 12 14 10 5 0 0 0 5 10 12 4 0 0 0 0 4 10 11 Clouds CL CL CL CL CL CL CL FW CL CL CL FW FW FW FW SC FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 54 79 54 76 54 74 54 73 Temp 61 55 71 77 59 54 68 75 59 54 68 73 58 54 67 71 Dewpt 48 48 49 51 50 49 50 53 52 51 53 53 53 51 52 53 PWind dir W NW W W W W W W Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC CL CL FW SC FW FW FW SC FW FW SC B1 FW PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ530-182300- Monterey Airport-Monterey CA 36.59N 121.85W Elev. 253 ft 1100 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 74 5076 52 71 Temp 70 72 70 62 57 53 51 56 72 73 71 62 58 55 53 56 69 69 68 Dewpt 35 40 41 41 40 39 38 39 41 43 43 42 39 39 40 44 48 49 49 RH 27 31 35 46 53 59 61 53 33 34 36 48 49 55 61 64 47 49 51 Wind dir N W W SW SW SW N N N NW W SW SW N N N W W W Wind spd 4 10 10 8 6 3 0 0 4 8 6 5 1 0 0 0 5 8 6 Clouds CL CL CL CL FW FW FW FW FW FW FW FW SC FW SC SC SC FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 50 68 50 67 50 66 51 66 Temp 54 50 65 66 54 50 62 65 54 51 63 64 54 51 63 64 Dewpt 47 45 50 50 49 46 50 50 50 48 52 51 50 49 51 50 PWind dir W W W W W SW W W Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC B1 FW SC B1 B1 SC SC B1 B1 FW SC B1 B1 SC PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ506-182300- Napa Airport-Napa CA 38.21N 122.28W Elev. 33 ft 1100 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 54 87 54 84 Temp 73 83 86 78 65 58 55 61 76 86 85 77 64 58 55 58 71 81 83 Dewpt 29 31 26 33 34 34 33 39 36 35 36 38 42 45 45 47 48 47 47 RH 19 15 11 19 31 40 43 44 23 16 17 24 45 62 69 67 44 30 28 Wind dir N N N NW NW N N NE N N W W SW N N N SW SW SW Wind spd 18 12 12 9 9 5 2 3 5 6 13 8 3 0 0 0 4 9 12 Wind gust 28 Clouds CL CL CL CL CL CL CL CL CL CL CL FW FW FW SC SC FW FW CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Coast Flood Y Y Y Y Y Y Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 50 81 49 75 48 72 48 73 Temp 60 51 69 80 58 50 65 73 56 50 63 71 56 50 63 73 Dewpt 49 48 50 50 49 47 51 51 51 47 51 52 51 47 50 52 PWind dir SW SW SW SW SW SW SW SW Wind char GN LT GN GN GN GN GN GN Avg clouds CL FW SC CL CL FW SC FW FW SC B1 FW FW SC B1 FW PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ508-182300- Oakland Airport-Alameda CA 37.74N 122.20W Elev. 3 ft 1100 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 55 81 54 76 Temp 69 75 77 71 64 58 55 59 68 74 75 69 61 58 55 57 65 71 70 Dewpt 36 36 41 39 40 41 40 41 40 41 4540 43 45 46 47 49 50 50 RH 30 24 28 31 41 53 57 51 36 30 34 35 51 62 72 69 56 47 49 Wind dir N N W W NW W N N NW W W W SW SW SW N W W W Wind spd 14 12 16 12 8 4 0 0 5 11 13 8 5 4 1 0 4 11 12 Clouds CL CL CL CL CL CL CL CL CL CL CL CL FW FW SC SC FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 52 74 52 71 52 70 52 69 Temp 58 53 63 69 58 53 61 67 58 53 62 65 57 53 62 64 Dewpt 49 47 50 52 50 48 51 52 52 49 54 53 53 50 53 52 PWind dir SW W W SW W SW W SW Wind char LT LT GN GN GN GN GN GN Avg clouds FW FW SC CL FW SC B1 FW FW SC B1 FW FW SC B1 FW PoP 12hr 0 0 0 0 0 0 0 5 $$ CAZ528-182300- Salinas Airport-Monterey CA 36.67N 121.60W Elev. 82 ft 1100 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 51 84 54 81 Temp 70 77 75 64 57 54 51 57 74 82 77 66 58 56 54 59 73 78 73 Dewpt 35 37 44 44 43 40 38 41 40 41 46 45 44 41 40 42 47 47 50 RH 27 24 33 48 59 59 61 55 29 23 33 47 59 57 59 53 40 33 44 Wind dir NW W W W N N E SE NW W W W SE SE SE SE W W W Wind spd 3 13 12 9 4 2 1 4 3 11 10 5 3 2 2 1 6 12 12 Clouds CL CL CL CL CL CL CL FW FW CL CL FW FW FW FW SC SC FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 52 77 51 73 51 71 51 71 Temp 56 52 69 70 56 51 65 68 55 51 65 67 55 52 65 67 Dewpt 49 45 50 52 50 47 51 52 51 49 53 53 52 50 53 52 PWind dir SW W W W W W W W Wind char LT LT LT LT LT LT GN LT Avg clouds FW SC SC CL FW SC SC FW FW B1 B1 FW FW B2 B2 FW PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ508-182300- San Francisco Airport-San Mateo CA 37.62N 122.38W Elev. 10 ft 1100 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 83 54 81 53 75 Temp 76 82 81 72 66 57 54 59 74 79 77 68 61 55 53 56 69 74 71 Dewpt 39 40 39 37 43 44 44 43 41 43 41 39 44 46 47 48 51 51 48 RH 26 22 22 28 43 62 69 55 30 28 28 34 53 72 80 74 53 44 44 Wind dir N NW W W W W W N NW W W W SW W W N W W W Wind spd 14 13 21 19 11 8 2 0 4 12 17 11 6 5 3 0 3 11 14 Clouds CL CL CL CL CL FW FW FW CL CL CL FW FW FW SC SC FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 52 72 52 69 53 68 53 67 Temp 55 52 66 68 55 53 63 66 56 53 63 65 56 53 63 64 Dewpt 49 48 52 50 50 49 52 51 51 50 54 52 52 50 53 51 PWind dir W SW W SW SW SW SW SW Wind char GN LT GN GN GN GN GN GN Avg clouds FW FW SC FW FW SC B1 FW SC B1 B1 FW SC B1 B1 SC PoP 12hr 0 0 0 0 0 5 5 5 $$ CAZ513-182300- San Jose Airport-Santa Clara CA 37.36N 121.92W Elev. 59 ft 1100 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 54 86 56 86 Temp 71 80 81 73 62 57 55 59 75 85 85 74 63 59 57 61 76 85 83 Dewpt 28 30 30 34 34 37 36 36 32 33 35 35 34 35 36 39 40 42 44 RH 20 16 16 24 35 47 49 42 21 15 17 24 34 40 45 44 27 22 25 Wind dir N N NW NW W N N NW NW NW NW NW N N N N W W NW Wind spd 13 13 18 11 5 3 3 3 6 11 14 8 0 0 0 0 2 10 13 Clouds CL CL CL CL CL CL CL FW CL CL CL CL FW FW FW SC FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 55 84 54 82 54 78 53 77 Temp 62 56 75 82 61 55 72 80 60 54 71 77 59 54 69 75 Dewpt 45 45 46 49 48 48 47 50 51 50 51 52 52 51 51 52 PWind dir W NW W SW SW SW W W Wind char LT LT GN LT GN LT GN LT Avg clouds FW FW FW CL CL FW SC FW CL FW SC FW FW SC SC FW PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ506-182300- Santa Rosa Airport-Sonoma CA 38.52N 122.82W Elev. 125 ft 1100 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 92 52 92 54 89 Temp 74 88 90 76 61 55 52 60 78 89 89 76 61 56 54 59 75 86 86 Dewpt 34 28 26 39 42 40 36 41 40 37 36 42 44 44 44 47 49 47 45 RH 23 11 10 26 49 57 54 49 26 16 15 30 53 64 69 64 40 26 24 Wind dir N N N NW N N N N NE N W W NW N N N S SW SW Wind spd 8 6 5 8 4 2 2 1 2 4 6 3 1 0 0 0 3 6 6 Wind gust 20 17 Clouds CL CL CL CL CL CL CL FW CL CL CL FW FW FW B1 SC FW CL CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Coast Flood Y Y Y YY Y Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 50 88 48 81 47 77 47 78 Temp 57 50 73 84 55 49 67 77 53 48 66 74 53 48 66 75 Dewpt 50 47 51 50 50 48 52 52 51 48 54 52 51 48 53 51 PWind dir SW S SW S SW S SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds CL FW SC CL CL FW B1 FW FW SC B2 FW FW SC B1 FW PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ529-182300- Watsonville Airport-Santa Cruz CA 36.94N 121.79W Elev. 161 ft 1100 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 49 82 52 78 Temp 72 78 80 67 58 53 50 56 73 79 79 65 58 55 53 58 72 76 73 Dewpt 36 42 40 43 42 41 39 43 42 47 48 48 42 42 39 44 49 49 49 RH 27 28 24 42 55 64 66 62 33 32 34 54 55 61 59 59 44 39 43 Wind dir SW W NW W E N N N N W SW S N N N N SW SW SW Wind spd 3 8 8 5 1 0 0 0 0 6 5 2 0 0 0 0 3 8 6 Clouds CL CL CL CL CL CL FW CL FW CL FW FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 49 75 49 71 49 69 50 70 Temp 55 50 68 71 54 50 64 67 54 50 63 66 54 51 64 67 Dewpt 51 46 51 50 51 47 49 50 52 49 52 51 52 49 52 51 PWind dir SW SW SW SW SW SW SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC FW FW B1 B1 FW FW B1 B2 FW FW B1 B2 FW PoP 12hr 0 0 0 0 0 0 0 0 $$ Visit us at www.weather.gov/sanfrancisco Follow us on Facebook and X at: www.facebook.com/nwsbayarea x.com/nwsbayarea