FOUS52 KCHS 180916 PFMCHS Point Forecast Matrices National Weather Service Charleston SC 516 AM EDT Mon May 18 2026 SCZ150-182000- Charleston International Airport-Charleston SC 32.91N 80.03W Elev. 45 ft 516 AM EDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 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 64 88 67 90 Temp 69 82 86 84 76 70 67 64 69 81 86 86 79 72 69 67 70 82 88 88 81 Dewpt 68 65 64 65 65 65 65 64 66 66 64 65 65 66 66 66 68 68 66 67 68 RH 97 56 48 53 69 84 93100 90 60 48 50 62 81 90 97 93 63 48 50 65 Wind dir N SE SE SE SE SE N N N SE SE SE SE SE N N N S SE S S Wind spd 0 5 14 16 9 5 0 0 0 5 10 11 9 4 0 0 0 2 9 12 9 Clouds FW FW FW FW CL FW FW FW FW SC FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF Heat index 90 91 Max heat 90 92 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 89 70 86 72 87 73 88 Temp 72 73 87 81 72 74 84 81 74 74 85 81 75 75 85 81 Dewpt 69 71 68 68 71 70 69 69 71 72 70 70 71 72 70 70 PWind dir S S SE SE SE SE S S Wind char LT GN LT LT LT LT LT LT Avg clouds FW FW FW SC FW SC B1 B1 SC SC B2 B1 B1 B1 B2 B1 PoP 12hr 0 20 20 50 20 60 20 60 Rain shwrs S S S C C S S L C S L C Tstms S S C C S C $$ GAZ218-182000- Savannah International Airport-Inland Chatham GA 32.12N 81.20W Elev. 50 ft 516 AM EDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 65 87 68 89 Temp 71 82 87 86 78 70 67 65 69 80 85 86 80 72 69 68 70 82 87 88 82 Dewpt 68 64 64 64 65 66 66 64 67 68 67 67 67 67 66 65 67 69 67 68 69 RH 90 55 46 48 64 87 97 97 93 67 55 53 65 84 90 90 90 65 52 52 65 Wind dir E SE SE SE SE SE N N N E SE SE SE SE SE N N SE SE SE SE Wind spd 1 6 13 14 8 3 0 0 0 4 9 10 6 2 1 0 0 2 5 10 6 Clouds FW FW FW CL FW FW FW FW FW FW SC FW FW FW SC SC SC FW FW FW SC PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 90 92 Max heat 90 93 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 70 89 72 87 73 88 73 89 Temp 72 72 87 82 73 74 85 82 75 75 86 82 75 75 86 82 Dewpt 68 69 69 70 70 69 70 70 70 70 72 71 71 70 71 71 PWind dir SE SE SE SE SE SE S SE Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW FW SC FW B1 B1 SC SC B1 B1 B1 SC B1 B1 PoP 12hr 0 10 10 40 10 50 10 50 Rain shwrs C C C C C C Tstms C C C $$ SCZ150-182000- Charleston Waterfront-Charleston SC 32.78N 79.94W Elev. 10 ft 516 AM EDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 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 81 69 85 70 87 Temp 72 79 81 79 75 72 70 69 72 81 84 84 78 74 72 70 72 83 85 86 80 Dewpt 68 67 68 68 67 67 66 66 68 69 70 69 68 68 68 68 70 71 72 71 71 RH 87 67 65 69 76 84 87 90 87 67 63 61 71 82 87 93 93 67 65 61 74 Wind dir N SE SE SE SE SE N N N SE SE SE SE SE SE N N SE SE S S Wind spd 0 4 13 13 6 4 0 0 0 4 9 9 5 3 2 0 0 3 9 10 6 Clouds FW FW FW FW FW FW FW FW FW SC FW CL FW FW FW FW SC FW FW FW SC PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Heat index 91 91 Max heat 91 92 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 73 87 72 85 74 86 74 86 Temp 74 75 86 81 74 76 84 80 76 76 84 80 76 76 85 81 Dewpt 71 72 73 71 71 71 73 71 72 72 74 72 73 73 74 72 PWind dir S SE SE SE SE SE S S Wind char LT LT LT GN LT GN LT GN Avg clouds FW FW FW FW FW B1 B1 B1 SC B1 B1 B1 SC B1 B1 B1 PoP 12hr 0 10 30 50 30 40 30 50 Rain shwrs C C C S C C C C C C Tstms S S C C S C $$ SCZ148-182000- Beaufort Marine Corps Air Station-Beaufort SC 32.48N 80.72W Elev. 37 ft 516 AM EDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 86 65 87 69 89 Temp 71 82 86 83 76 70 67 65 69 80 86 86 80 72 70 69 71 82 87 88 81 Dewpt 69 65 66 66 66 66 66 65 67 68 68 68 68 68 67 66 68 69 69 70 70 RH 93 56 51 57 71 87 97100 93 67 55 55 67 87 90 90 90 65 55 55 69 Wind dir N SE SE SE SE SE N N N SE SE SE SE SE SE N N SE SE SE SE Wind spd 0 5 13 13 5 3 0 0 0 4 9 9 5 2 1 0 0 2 8 9 6 Clouds FW FW FW FW CL FW FW FW FW SC SC FW FW FW FW SC FW FW FW SC FW PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-0000-00 00-00 Heat index 91 93 Max heat 91 94 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 72 89 71 87 73 87 73 88 Temp 73 74 87 82 73 75 85 82 75 75 85 82 76 76 86 82 Dewpt 69 70 70 70 70 70 71 71 70 70 73 71 71 71 73 71 PWind dir S SE SE SE SE SE S S Wind char LT LT LT GN LT LT LT LT Avg clouds FW FW FW FW FW SC B1 B1 SC SC B1 B1 SC SC B1 B1 PoP 12hr 0 10 20 50 10 50 20 50 Rain shwrs S C C C C S C C Tstms S C C S C $$ SCZ043-182000- Walterboro-Inland Colleton SC 32.91N 80.67W Elev. 98 ft 516 AM EDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 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 63 89 63 91 Temp 70 83 89 87 78 69 65 63 67 81 88 89 80 69 65 63 67 82 89 90 82 Dewpt 68 65 63 63 64 64 63 62 65 66 61 62 64 64 62 61 65 67 62 63 66 RH 93 55 42 45 62 84 93 97 93 60 40 41 58 84 90 93 93 61 41 41 58 Wind dir N SE SE SE SE N N N N SE SE SE SE N N N N N S S S Wind spd 0 4 12 14 6 0 0 0 0 3 6 10 8 0 0 0 0 0 4 9 8 Clouds SC SC FW CL CL FW FW FW FW SC FW CL CL FW FW SC SC FW FW SC FW PoP 12hr 0 0 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF Heat index 90 91 Max heat 90 91 92 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 66 90 67 87 68 87 69 88 Temp 68 70 88 82 69 70 84 81 70 71 85 81 71 71 85 81 Dewpt 64 67 64 68 68 67 66 69 66 68 68 70 67 68 68 70 PWind dir S S SE SE SE SE S S Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW B1 SC SC B2 B2 SC B1 B1 B2 B1 B1 B1 B2 PoP 12hr 0 30 20 70 10 60 20 70 Rain shwrs C S L L C L S C L Tstms S S C C C $$ GAZ099-182000- Metter-Candler GA 32.40N 82.06W Elev. 197 ft 516 AM EDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 EDT 3hrly 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 92 63 90 64 91 Temp 68 82 90 91 81 71 66 63 67 80 88 90 83 72 67 64 67 81 89 91 85 Dewpt 67 63 61 58 61 64 65 63 65 66 63 62 64 66 65 64 66 67 62 60 64 RH 97 53 38 33 51 79 97100 93 62 43 39 53 8193100 97 63 41 36 50 Wind dir SE SE SE SE SE SE N N N SE SE SE SE SE SE N N S SE SE SE Wind spd 2 5 12 14 9 4 0 0 0 3 5 8 9 4 1 0 0 2 4 5 6 Clouds SC FW CL CL CL FW FW FW FW SC FW FW CL FW FW SC SC SC SC SC FW PoP 12hr 0 0 10 0 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Obvis PF PF PF Heat index 90 90 91 Max heat 90 91 90 91 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 EDT 6hrly 02 08 14 20 02 08 14 20 02 08 14 20 02 08 14 20 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 67 91 68 90 69 89 69 89 Temp 69 70 89 84 72 71 87 83 72 71 87 83 73 71 87 82 Dewpt 67 68 64 67 68 68 65 69 69 69 68 70 69 70 68 70 PWind dir S SE SE SE SE SE SE S Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW FW B1 SC SC B1 B1 SC B1 B1 B2 B1 SC B1 B2 PoP 12hr 5 30 20 50 20 60 10 60 Rain shwrs C S S S C S S L L Tstms S S C S C C $$ PRODUCT KEY... --- Cloud Cover --- CODE PERCENTAGE SKY COVER DAY/NIGHT CL 0 TO <=5 percent Sunny/Clear FW >5 TO <=25 percent Sunny/Mostly Clear SC >25 TO <=50 percent Partly Cloudy B1 >50 TO <=69 percent Mostly Cloudy B2 >69 TO <=87 percent Mostly Cloudy OV >87 TO 100 percent Cloudy --- Obstructions to Visibility --- --- Weather Coverage --- CODE TYPE CODE QUALIFYING TERM F Fog S Slight PF Patchy Fog C Chance F+ Dense Fog L Likely PF+ Patchy Dense Fog O Occasional H Haze D Definite BS Blowing Snow K Smoke BD Blowing Dust AF Volcanic Ashfall --- Extended Wind Forecast Character --- 12-HR MAX SUSTAINED CODE WIND CHARACTER WIND SPEED LT Light < 8 mph GN Gentle 8-14 mph BZ Breezy 15-22 mph WY Windy 23-30 mph VW Very Windy 31-39 mph SD Strong/Damaging >=40 mph