FOUS55 KMSO 181822 PFMMSO Point Forecast Matrices National Weather Service Missoula MT 1222 PM MDT Mon May 18 2026 MTZ005-191000- Missoula-Missoula MT 46.92N 114.08W Elev. 3205 ft 1222 PM MDT Mon May 18 2026 Date 05/18/26 Tue 05/19/26 Wed 05/20/26 Thu MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 32 65 37 65 37 Temp 59 59 51 42 36 33 43 56 62 65 55 46 40 38 47 57 62 61 53 46 41 38 Dewpt 27 26 34 34 32 30 33 34 33 34 36 36 34 34 36 38 39 40 43 41 38 37 RH 29 28 52 73 85 89 67 43 33 31 49 68 79 85 65 49 43 46 69 83 89 96 Wind dir NW NW NW N N N N W NW NW NW N N N N W W NW NW N N N Wind spd 5 9 3 0 0 0 0 3 9 10 2 0 0 0 0 4 10 11 4 1 0 0 Clouds SC SC SC SC SC SC B1 SC SC B1 SC FW SC B1 B1 B1 B1 B2 B2 B1 SC SC PoP 12hr 20 20 20 40 80 QPF 12hr 0 0 0 0.02 0.06 Snow 12hr 00-00 00-00 00-00 Rain S S C D C C Rain shwrs C D Tstms S S Frost Y Y Y Date 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 66 39 72 41 77 45 77 45 73 Temp 55 66 48 40 61 72 51 43 65 76 55 45 66 76 56 47 62 71 Dewpt 38 35 36 34 36 34 37 35 37 33 37 35 36 33 37 36 36 35 PWind dir NW N W NW W SW W SW W Wind char LT LT LT LT LT LT LT LT LT Avg clouds SC SC SC SC SC SC SC FW FW SC SC FW SC SC SC SC SC SC PoP 12hr 10 0 0 0 0 0 0 10 10 $$ MTZ003-191000- Kalispell-Flathead MT 48.30N 114.27W Elev. 2977 ft 1222 PM MDT Mon May 18 2026 Date 05/18/26 Tue 05/19/26 Wed 05/20/26 Thu MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 34 61 38 60 36 Temp 57 56 49 43 38 35 44 56 58 59 52 46 41 39 46 55 57 55 50 43 39 37 Dewpt 32 34 39 38 36 33 37 40 40 41 42 41 37 36 39 42 44 43 43 40 38 35 RH 38 43 68 82 92 92 76 55 51 51 69 83 85 89 76 61 62 64 77 89 96 92 Wind dir S S S NW SW S S S SW SW SW S SE S NE NE N N N N N N Wind spd 4 4 2 1 1 1 2 5 6 6 3 1 1 1 1 3 4 4 3 4 3 2 Clouds B1 B1 B1 B1 B1 B2 B1 B1 B1 B1 SC B1 B2 B2 B1 B2 B2 B1 B1 SC SC SC PoP 12hr 30 40 30 80 50 QPF 12hr 0.02 0.02 0 0.11 0.05 Snow 12hr 00-00 00-00 00-00 Rain C S C C C C Rain shwrs C C C D D Tstms S C S S C Frost Y Y Y Date 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun05/24/26 Mon 05/25/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 64 40 68 42 71 45 72 45 68 Temp 56 64 48 41 61 68 51 44 64 70 53 46 64 70 53 47 61 66 Dewpt 38 35 38 36 39 40 42 39 42 39 41 38 39 36 39 37 38 39 PWind dir E SE SE SW S S S SW SW Wind char LT LT LT LT LT LT LT LT GN Avg clouds SC FW SC SC B1 SC SC FW SC SC SC SC SC SC SC B1 SC SC PoP 12hr 0 0 5 5 5 5 5 10 20 Rain S $$ MTZ007-191000- Butte-Silver Bow MT 45.95N 112.50W Elev. 5550 ft 1222 PM MDT Mon May 18 2026 Date 05/18/26 Tue 05/19/26 Wed 05/20/26 Thu MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 25 58 32 59 33 Temp 47 48 43 34 29 26 38 51 56 56 50 41 36 33 44 54 57 56 50 42 36 34 Dewpt 16 16 21 21 19 18 21 20 22 22 27 29 28 26 28 28 30 32 35 35 32 31 RH 28 27 41 58 66 71 50 29 26 26 41 62 72 75 53 36 35 40 56 76 85 89 Wind dir N N N N N N N NW NW NW NW N N N N W W NW N N N NW Wind spd 5 4 0 0 0 0 0 3 5 4 1 0 0 0 0 4 8 9 5 3 4 3 Clouds B1 B1 FW SC FW SC SC SC SC SC SC SC SC SC SC B1 B2 B2 B2 B2 B2 B1 PoP 12hr 5 20 30 30 80 QPF 12hr 0 0 0 0 0.03 Snow 12hr 00-00 00-00 00-00 Rain C D D D C Rain shwrs C D Snow D C Tstms S S Date 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 56 33 65 36 69 41 72 42 72 Temp 48 56 41 34 58 65 46 38 63 68 50 42 67 72 51 43 67 70 Dewpt 31 28 30 28 28 29 31 29 29 28 31 29 28 29 30 29 29 29 PWind dir N N W NW W W SW W SW Wind char LT LT LT LT LT LT LT LT GN Avg clouds B1 B1 B1 SC SC SC SC SC FW SC SC SC FW SC SC SC SC SC PoP 12hr 40 0 10 5 5 5 10 5 20 Rain C Rain shwrs S Snow C Tstms S $$ IDZ010-191000- Salmon-Lemhi ID 45.12N 113.88W Elev. 4045 ft 1222 PM MDT Mon May 18 2026 Date 05/18/26 Tue 05/19/26 Wed 05/20/26 Thu MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 27 66 33 68 35 Temp 57 59 50 39 32 28 40 54 63 64 55 46 38 34 44 58 66 66 56 48 40 36 Dewpt 19 16 21 23 23 23 25 24 25 23 29 31 29 29 30 33 33 34 36 38 36 35 RH 22 18 31 52 69 81 55 31 23 21 37 55 70 82 57 39 29 30 47 68 85 96 Wind dir N N N N N N N N N N N N N N N N NW NW NW N N N Wind spd 8 8 0 0 0 0 0 0 0 3 0 0 0 0 0 0 1 8 4 0 0 0 Clouds FW SC SC SC SC SC FW FW SC B1 B1 SC SC SC SC B1 B1 B2 B1 B1 B1 SC PoP 12hr 5 20 20 10 50 QPF 12hr 0 0 0 0 0.01 Snow 12hr 00-00 00-00 00-00 Rain C C C S Rain shwrs C Tstms S Frost Y Y Y Date 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 67 35 74 38 80 42 84 43 83 Temp 55 67 48 36 61 73 51 40 67 78 55 43 70 82 57 45 69 80 Dewpt 34 28 31 31 33 31 34 32 34 31 34 33 32 28 32 32 32 30 PWind dir N N N NW W W SW W SW Wind char LT LT LT LT LT LT LT LT GN Avg clouds SC SC SC SC SC FW SC SC FW FW SC SC FW FW SC SC SC FW PoP 12hr 20 0 5 0 0 5 5 5 20 Rain S Rain shwrs S Tstms S $$ MTZ004-191000- Lookout Pass-Mineral MT 47.45N 115.67W Elev. 6027 ft 1222 PM MDT Mon May 18 2026 Date 05/18/26 Tue 05/19/26 Wed 05/20/26 Thu MDT 3hrly 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 31 46 35 47 34 Temp 38 40 38 35 33 32 40 42 43 44 42 38 37 36 42 43 45 45 42 39 36 34 Dewpt 28 28 30 29 28 27 28 26 28 29 31 29 29 27 28 30 32 32 34 33 30 29 RH 67 62 73 78 82 81 62 53 55 55 65 70 72 69 57 60 60 60 73 79 79 82 Wind dir NW W W W SW SW SW W W W SW SW SW SW SW W W NW N NE NE NE Wind spd 6 8 5 6 8 8 8 12 12 13 6 8 8 8 6 12 12 12 6 8 8 8 Clouds B2 B1 SC SC SC SC SC SC B1 SC SC SC B1 OV B1 B1 B1 B1 B1 FW FW SC PoP 12hr 10 10 0 30 50 QPF 12hr 0 0 0 0 0.02 Snow 12hr 00-00 00-00 00-00 Rain C C C Rain shwrs C C Snowshwrs C Tstms S S Wind chill 29 26 25 35 36 37 32 31 30 36 39 39 33 30 27 Min chill 33 29 25 29 36 32 30 33 38 33 27 Frost Y Y Y Date 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 MDT 6hrly 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 51 39 55 44 63 46 62 44 56 Temp 44 50 43 40 50 54 48 47 57 61 53 47 54 59 51 46 48 53 Dewpt 27 25 29 28 27 28 33 31 29 28 32 29 26 26 30 29 28 28 PWind dir NE W SW SW SW SW SW SW SW Wind char LT LT LT LT LT LT GN LT GN Avg clouds FW FW SC SC SC FW SC FW SC SC SC SC SC SC SC SC SC B1 PoP 12hr 0 0 5 0 0 0 0 10 30 Rain S C $$ IDZ006-191000- Lowell-Idaho ID 46.15N 115.60W Elev. 1575 ft 1122 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 Thu PDT 3hrly 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 UTC 3hrly 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 Min/Max 39 72 44 72 43 Temp 65 64 53 46 42 40 46 62 70 69 57 50 47 45 49 62 70 69 58 51 46 43 Dewpt 41 43 45 42 39 37 40 41 40 44 47 44 42 41 43 45 44 47 49 47 44 42 RH 41 46 74 86 89 89 79 46 33 40 69 80 83 86 80 54 39 45 72 86 93 96 Wind dir W NW N N N N N W W W N N N N N NW NW NW N N N N Wind spd 3 3 0 0 0 0 0 1 3 2 0 0 0 0 0 1 4 4 0 0 0 0 Wind gust 12 14 Clouds SC SC FW FW SC SC FW FW SC B1 SC SC SC SC B1 B1 SC B1 B1 SC FW FW PoP 12hr 20 5 20 10 40 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain S C S S Rain shwrs S C Tstms S S Date 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 Mon 05/25/26 PDT 6hrly 11 17 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 18 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Max/Min 75 45 80 47 84 49 84 48 76 Temp 65 73 53 45 69 78 55 48 71 81 57 49 70 80 56 49 64 72 Dewpt 46 44 45 41 44 44 46 43 45 46 47 43 44 46 47 42 44 46 PWind dir NW NW NW NW W NW W NW NW Wind char LT LT LT LT LT LT LT LT LT Avg clouds FW FW SC SC FW FW FW FW SC SC SC SC SC FW SC SC SC SC PoP 12hr 5 0 0 0 0 5 5 10 20 Rain S S $$