


Heat Index Forecast Tables
Issued by NWS
Issued by NWS
099 FMUS23 KWNH 230739 PRBEHH DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 0654 UTC SAT AUG 23 2025 MAXIMUM HEAT INDEX (DEG F) AND MAXIMUM HI PROB (%) FRCSTS AT EASTERN US CITIES - DAYS 3 TO 7 FROM SAT AUG 23 2025 AKRON-CANTON_OH ALBANY_NY CAK 0826 0827 0828 0829 0830 ALB 0826 0827 0828 0829 0830 MAX 66 69 74 74 76 MAX 70 70 74 73 75 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 1 %>85 0 0 0 1 5 %>85 0 0 1 2 5 %>80 0 0 3 12 22 %>80 1 2 9 11 20 ASHEVILLE_NC ATLANTA_GA AVL 0826 0827 0828 0829 0830 ATL 0826 0827 0828 0829 0830 MAX 72 71 71 73 73 MAX 79 81 81 79 79 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 3 2 3 %>85 0 0 0 1 2 %>85 2 10 22 13 15 %>80 2 2 2 8 11 %>80 32 62 61 43 42 BALTIMORE_MD BIRMINGHAM_AL BWI 0826 0827 0828 0829 0830 BHM 0826 0827 0828 0829 0830 MAX 77 74 78 80 79 MAX 77 81 83 81 82 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 1 2 %>90 0 0 0 0 0 %>90 0 0 4 6 10 %>85 0 0 0 6 6 %>85 3 10 28 24 30 %>80 7 1 21 47 37 %>80 24 58 72 58 60 BOSTON_MA BUFFALO_NY BOS 0826 0827 0828 0829 0830 BUF 0826 0827 0828 0829 0830 MAX 76 72 75 75 73 MAX 65 69 71 70 74 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 1 2 %>85 0 0 0 1 4 %>80 8 0 9 13 12 %>80 0 0 1 5 17 CHARLESTON_SC CHARLESTON_WV CHS 0826 0827 0828 0829 0830 CRW 0826 0827 0828 0829 0830 MAX 90 85 84 83 85 MAX 72 73 77 79 80 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 2 0 0 0 0 %>100 0 0 0 0 0 %>95 15 1 0 1 4 %>95 0 0 0 0 1 %>90 52 12 5 8 20 %>90 0 0 0 2 6 %>85 88 47 38 35 52 %>85 0 0 1 12 23 %>80 99 85 87 74 84 %>80 1 2 18 44 53 CHARLOTTE_NC CHICAGO_IL CLT 0826 0827 0828 0829 0830 ORD 0826 0827 0828 0829 0830 MAX 80 78 78 80 81 MAX 69 74 77 76 75 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 3 %>90 0 0 0 0 0 %>85 4 1 2 10 18 %>85 0 0 6 4 3 %>80 46 23 31 52 56 %>80 0 1 30 20 16 CINCINNATI_OH CLEVELAND_OH LUK 0826 0827 0828 0829 0830 CLE 0826 0827 0828 0829 0830 MAX 72 74 77 80 80 MAX 66 69 73 72 74 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 1 %>95 0 0 0 0 0 %>90 0 0 0 4 7 %>90 0 0 0 0 0 %>85 0 0 4 19 23 %>85 0 0 0 0 2 %>80 1 6 28 51 52 %>80 0 0 5 5 12 COLUMBIA_SC COLUMBUS_OH CAE 0826 0827 0828 0829 0830 TZR 0826 0827 0828 0829 0830 MAX 83 81 82 82 83 MAX 69 71 75 77 78 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 2 %>95 0 0 0 0 0 %>90 3 2 2 4 11 %>90 0 0 0 1 2 %>85 31 19 20 24 37 %>85 0 0 1 6 11 %>80 85 62 69 63 72 %>80 0 1 10 29 35 DAYTON_OH DETROIT_MI MGY 0826 0827 0828 0829 0830 DET 0826 0827 0828 0829 0830 MAX 70 72 76 79 79 MAX 67 72 73 74 75 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 2 3 %>90 0 0 0 0 0 %>85 0 0 2 12 15 %>85 0 0 0 2 4 %>80 0 2 19 40 41 %>80 0 1 4 13 19 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0826 0827 0828 0829 0830 GRR 0826 0827 0828 0829 0830 MAX 75 76 79 81 80 MAX 67 72 74 75 77 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 1 2 %>95 0 0 0 0 0 %>90 0 0 1 7 8 %>90 0 0 0 0 1 %>85 0 1 10 26 25 %>85 0 0 0 3 6 %>80 6 14 41 57 52 %>80 0 0 2 17 27 GREENSBORO_NC HUNTSVILLE_AL GSO 0826 0827 0828 0829 0830 HSV 0826 0827 0828 0829 0830 MAX 77 75 76 78 78 MAX 77 80 81 81 81 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 1 2 %>90 0 0 0 0 0 %>90 2 2 2 8 10 %>85 0 0 0 2 6 %>85 10 13 19 26 29 %>80 13 5 11 27 34 %>80 33 47 58 56 57 INDIANAPOLIS_IN KNOXVILLE_TN IND 0826 0827 0828 0829 0830 TYS 0826 0827 0828 0829 0830 MAX 70 72 76 78 77 MAX 76 76 78 79 82 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 3 %>90 0 0 0 1 2 %>90 0 0 0 3 12 %>85 0 0 1 6 11 %>85 3 3 6 15 31 %>80 0 1 15 31 34 %>80 21 21 33 44 59 LEXINGTON_KY LOUISVILLE_KY LEX 0826 0827 0828 0829 0830 SDF 0826 0827 0828 0829 0830 MAX 75 75 78 81 81 MAX 75 75 79 81 81 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 3 %>95 0 0 0 1 3 %>90 0 0 0 5 11 %>90 0 0 1 5 11 %>85 0 1 6 24 30 %>85 0 1 7 24 30 %>80 5 11 35 59 58 %>80 5 13 39 58 58 MEMPHIS_TN MIAMI_FL MEM 0826 0827 0828 0829 0830 MIA 0826 0827 0828 0829 0830 MAX 77 81 81 78 84 MAX 104 102 101 101 100 %>110 0 0 0 0 0 %>110 18 9 8 13 12 %>105 0 0 0 0 0 %>105 44 29 26 31 29 %>100 0 0 0 0 2 %>100 73 60 54 55 52 %>95 0 0 0 1 7 %>95 91 85 79 78 74 %>90 3 1 5 6 20 %>90 98 97 94 92 89 %>85 12 12 23 18 43 %>85 100 99 99 98 97 %>80 32 60 58 42 68 %>80 100 100 100 100 99 MILWAUKEE_WI MOBILE_AL MKE 0826 0827 0828 0829 0830 MOB 0826 0827 0828 0829 0830 MAX 68 72 74 72 72 MAX 93 88 92 91 91 %>110 0 0 0 0 0 %>110 1 0 0 0 0 %>105 0 0 0 0 0 %>105 4 0 1 1 1 %>100 0 0 0 0 0 %>100 15 1 7 7 8 %>95 0 0 0 0 0 %>95 38 9 27 25 26 %>90 0 0 0 0 0 %>90 67 34 61 56 55 %>85 0 0 1 1 1 %>85 88 70 88 84 82 %>80 0 1 11 6 7 %>80 97 93 98 97 96 NASHVILLE_TN NEW_YORK_CITY_NY BNA 0826 0827 0828 0829 0830 NYC 0826 0827 0828 0829 0830 MAX 79 79 81 82 82 MAX 77 74 78 78 77 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 2 2 %>95 0 0 0 0 0 %>90 1 1 2 9 10 %>90 0 0 0 0 0 %>85 9 10 17 29 30 %>85 0 0 1 4 5 %>80 38 42 55 60 60 %>80 11 2 24 34 29 NORFOLK_VA ORLANDO_FL ORF 0826 0827 0828 0829 0830 ORL 0826 0827 0828 0829 0830 MAX 79 76 78 79 78 MAX 103 100 99 98 96 %>110 0 0 0 0 0 %>110 18 4 5 9 3 %>105 0 0 0 0 0 %>105 41 19 18 21 11 %>100 0 0 0 0 0 %>100 68 48 42 41 29 %>95 0 0 0 0 0 %>95 88 79 70 63 55 %>90 0 0 0 1 0 %>90 97 95 89 81 79 %>85 6 1 3 7 6 %>85 99 99 98 93 93 %>80 37 11 24 34 32 %>80 100 100 100 98 99 PHILADELPHIA_PA PITTSBURGH_PA PHL 0826 0827 0828 0829 0830 PIT 0826 0827 0828 0829 0830 MAX 76 74 77 79 79 MAX 68 70 74 76 77 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 1 %>85 0 0 0 3 6 %>85 0 0 0 2 7 %>80 2 0 11 41 37 %>80 0 0 3 18 30 PORTLAND_ME PROVIDENCE_RI PWM 0826 0827 0828 0829 0830 PVD 0826 0827 0828 0829 0830 MAX 75 72 74 73 73 MAX 76 73 76 76 75 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 1 0 1 0 2 %>85 0 0 0 0 1 %>80 9 3 9 6 10 %>80 8 1 5 10 11 RALEIGH-DURHAM_NC RICHMOND_VA RDU 0826 0827 0828 0829 0830 RIC 0826 0827 0828 0829 0830 MAX 79 77 79 80 81 MAX 79 76 79 81 81 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 0 0 0 0 0 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 1 2 %>90 0 0 0 0 2 %>85 1 1 1 10 19 %>85 1 0 1 13 19 %>80 38 20 31 50 62 %>80 36 8 38 63 59 SAVANNAH_GA TALLAHASSEE_FL SAV 0826 0827 0828 0829 0830 TLH 0826 0827 0828 0829 0830 MAX 92 87 86 84 87 MAX 93 90 92 91 91 %>110 0 0 0 0 0 %>110 0 0 0 0 0 %>105 0 0 0 0 0 %>105 1 0 0 2 2 %>100 5 1 0 0 2 %>100 9 1 5 9 10 %>95 28 6 1 2 9 %>95 34 13 25 28 28 %>90 67 28 12 14 30 %>90 69 51 65 56 56 %>85 93 65 57 46 61 %>85 93 89 93 81 80 %>80 99 92 94 81 86 %>80 99 99 99 95 94 TAMPA_FL WASHINGTON_DC TPA 0826 0827 0828 0829 0830 DCA 0826 0827 0828 0829 0830 MAX 102 100 100 99 98 MAX 77 74 78 80 79 %>110 12 7 10 11 9 %>110 0 0 0 0 0 %>105 31 23 26 25 21 %>105 0 0 0 0 0 %>100 60 51 51 45 41 %>100 0 0 0 0 0 %>95 85 79 76 68 64 %>95 0 0 0 0 0 %>90 96 94 91 85 83 %>90 0 0 0 0 1 %>85 99 99 98 95 94 %>85 0 0 0 6 9 %>80 100 100 100 99 98 %>80 6 1 23 55 43 URL IS WWW.WPC.NCEP.NOAA.GOV $$