


Heat Index Forecast Tables
Issued by NWS
Issued by NWS
397 FMUS23 KWNH 240741 PRBEHH DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 0655 UTC SUN AUG 24 2025 MAXIMUM HEAT INDEX (DEG F) AND MAXIMUM HI PROB (%) FRCSTS AT EASTERN US CITIES - DAYS 3 TO 7 FROM SUN AUG 24 2025 AKRON-CANTON_OH ALBANY_NY CAK 0827 0828 0829 0830 0831 ALB 0827 0828 0829 0830 0831 MAX 68 73 67 69 73 MAX 71 74 67 67 73 %>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 1 2 2 %>85 0 1 0 0 1 %>80 0 0 4 7 11 %>80 4 11 1 3 11 ASHEVILLE_NC ATLANTA_GA AVL 0827 0828 0829 0830 0831 ATL 0827 0828 0829 0830 0831 MAX 71 70 74 74 72 MAX 81 82 80 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 1 4 2 4 %>85 0 0 2 2 1 %>85 8 16 20 13 17 %>80 1 1 14 13 8 %>80 62 71 53 42 45 BALTIMORE_MD BIRMINGHAM_AL BWI 0827 0828 0829 0830 0831 BHM 0827 0828 0829 0830 0831 MAX 75 76 77 73 75 MAX 80 81 77 75 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 0 %>95 0 0 0 1 1 %>90 0 0 0 1 1 %>90 0 1 3 3 6 %>85 0 0 1 3 5 %>85 1 15 12 11 18 %>80 1 3 17 14 22 %>80 45 63 33 28 39 BOSTON_MA BUFFALO_NY BOS 0827 0828 0829 0830 0831 BUF 0827 0828 0829 0830 0831 MAX 73 75 70 68 73 MAX 68 72 63 66 72 %>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 1 %>80 3 7 4 5 11 %>80 0 2 1 3 8 CHARLESTON_SC CHARLESTON_WV CHS 0827 0828 0829 0830 0831 CRW 0827 0828 0829 0830 0831 MAX 86 88 86 87 86 MAX 72 75 76 73 76 %>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 3 3 1 1 %>100 0 0 0 0 0 %>95 3 13 11 7 6 %>95 0 0 0 0 0 %>90 18 37 29 27 25 %>90 0 0 0 1 1 %>85 54 70 55 60 58 %>85 0 0 2 5 6 %>80 88 92 80 87 87 %>80 0 6 17 17 25 CHARLOTTE_NC CHICAGO_IL CLT 0827 0828 0829 0830 0831 ORD 0827 0828 0829 0830 0831 MAX 78 78 81 81 77 MAX 73 76 68 73 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 5 4 2 %>90 0 0 0 0 0 %>85 0 1 23 23 10 %>85 0 2 2 1 1 %>80 17 22 57 62 33 %>80 1 18 6 8 12 CINCINNATI_OH CLEVELAND_OH LUK 0827 0828 0829 0830 0831 CLE 0827 0828 0829 0830 0831 MAX 73 76 77 74 77 MAX 69 73 67 69 73 %>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 1 3 4 %>85 0 0 0 0 0 %>80 1 9 17 15 25 %>80 0 3 1 3 7 COLUMBIA_SC COLUMBUS_OH CAE 0827 0828 0829 0830 0831 TZR 0827 0828 0829 0830 0831 MAX 82 82 84 85 85 MAX 70 74 73 71 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 1 0 0 %>100 0 0 0 0 0 %>95 0 0 4 4 3 %>95 0 0 0 0 0 %>90 1 1 18 19 16 %>90 0 0 0 0 0 %>85 17 19 45 49 47 %>85 0 0 0 2 2 %>80 71 75 75 80 80 %>80 0 2 5 9 14 DAYTON_OH DETROIT_MI MGY 0827 0828 0829 0830 0831 DET 0827 0828 0829 0830 0831 MAX 71 75 74 72 76 MAX 71 71 67 70 76 %>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 1 1 3 %>80 0 5 6 10 17 %>80 0 2 5 5 18 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0827 0828 0829 0830 0831 GRR 0827 0828 0829 0830 0831 MAX 74 77 81 77 77 MAX 71 69 67 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 1 1 1 %>90 0 0 0 0 0 %>85 0 2 15 6 8 %>85 0 0 1 1 1 %>80 2 21 55 27 32 %>80 0 1 5 6 11 GREENSBORO_NC HUNTSVILLE_AL GSO 0827 0828 0829 0830 0831 HSV 0827 0828 0829 0830 0831 MAX 75 77 78 77 76 MAX 78 78 76 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 1 %>90 0 0 0 0 1 %>90 0 0 1 7 8 %>85 0 0 6 4 7 %>85 4 4 6 26 27 %>80 3 12 34 27 24 %>80 30 28 25 56 59 INDIANAPOLIS_IN KNOXVILLE_TN IND 0827 0828 0829 0830 0831 TYS 0827 0828 0829 0830 0831 MAX 71 75 75 73 75 MAX 75 76 80 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 0 0 4 7 9 %>85 0 0 0 2 3 %>85 1 0 18 25 28 %>80 0 6 9 10 16 %>80 13 10 48 57 56 LEXINGTON_KY LOUISVILLE_KY LEX 0827 0828 0829 0830 0831 SDF 0827 0828 0829 0830 0831 MAX 73 76 79 75 78 MAX 73 77 80 76 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 0 %>95 0 0 0 0 0 %>90 0 0 1 0 0 %>90 0 0 1 0 1 %>85 0 0 9 4 6 %>85 0 1 13 4 8 %>80 0 11 44 20 31 %>80 1 18 52 21 36 MEMPHIS_TN MIAMI_FL MEM 0827 0828 0829 0830 0831 MIA 0827 0828 0829 0830 0831 MAX 81 77 70 80 77 MAX 104 104 104 101 102 %>110 0 0 0 0 0 %>110 17 25 25 16 22 %>105 0 0 0 0 0 %>105 42 45 44 34 39 %>100 0 0 0 0 0 %>100 70 66 65 56 59 %>95 0 0 0 1 2 %>95 89 83 82 76 77 %>90 1 1 1 5 6 %>90 97 94 93 90 89 %>85 15 8 5 22 17 %>85 99 98 98 97 96 %>80 66 29 13 51 35 %>80 100 100 99 99 99 MILWAUKEE_WI MOBILE_AL MKE 0827 0828 0829 0830 0831 MOB 0827 0828 0829 0830 0831 MAX 70 72 64 67 72 MAX 85 89 95 88 92 %>110 0 0 0 0 0 %>110 0 0 3 0 1 %>105 0 0 0 0 0 %>105 0 0 11 0 3 %>100 0 0 0 0 0 %>100 0 1 28 3 12 %>95 0 0 0 0 0 %>95 1 10 52 12 31 %>90 0 0 0 0 0 %>90 14 43 76 36 59 %>85 0 0 0 0 0 %>85 53 82 91 67 82 %>80 0 2 2 2 3 %>80 89 98 98 89 95 NASHVILLE_TN NEW_YORK_CITY_NY BNA 0827 0828 0829 0830 0831 NYC 0827 0828 0829 0830 0831 MAX 78 77 80 82 81 MAX 74 78 74 72 76 %>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 1 %>95 0 0 0 0 0 %>90 0 0 1 7 7 %>90 0 0 0 0 0 %>85 4 2 13 28 27 %>85 0 2 1 2 3 %>80 29 24 50 63 60 %>80 2 26 7 9 21 NORFOLK_VA ORLANDO_FL ORF 0827 0828 0829 0830 0831 ORL 0827 0828 0829 0830 0831 MAX 78 79 82 77 77 MAX 99 98 95 92 95 %>110 0 0 0 0 0 %>110 4 1 0 0 1 %>105 0 0 0 0 0 %>105 16 9 1 0 6 %>100 0 0 0 0 0 %>100 42 37 13 5 21 %>95 0 0 1 0 0 %>95 73 77 48 26 50 %>90 1 1 6 0 0 %>90 92 97 85 65 80 %>85 8 9 25 1 3 %>85 99 100 98 92 95 %>80 32 37 60 17 26 %>80 100 100 100 99 99 PHILADELPHIA_PA PITTSBURGH_PA PHL 0827 0828 0829 0830 0831 PIT 0827 0828 0829 0830 0831 MAX 74 76 76 72 75 MAX 70 73 69 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 1 1 %>90 0 0 0 1 0 %>85 0 0 1 5 7 %>85 0 0 1 3 3 %>80 1 5 15 16 24 %>80 0 1 6 11 15 PORTLAND_ME PROVIDENCE_RI PWM 0827 0828 0829 0830 0831 PVD 0827 0828 0829 0830 0831 MAX 72 73 70 68 73 MAX 74 76 72 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 1 0 0 0 2 %>85 0 0 0 1 1 %>80 6 5 1 1 10 %>80 3 8 3 4 8 RALEIGH-DURHAM_NC RICHMOND_VA RDU 0827 0828 0829 0830 0831 RIC 0827 0828 0829 0830 0831 MAX 79 80 82 80 80 MAX 78 79 82 76 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 1 0 0 %>95 0 0 0 0 0 %>90 0 0 6 1 2 %>90 0 0 1 1 2 %>85 3 8 28 12 16 %>85 1 1 15 8 13 %>80 34 50 64 49 50 %>80 22 36 68 28 40 SAVANNAH_GA TALLAHASSEE_FL SAV 0827 0828 0829 0830 0831 TLH 0827 0828 0829 0830 0831 MAX 87 86 86 87 90 MAX 88 93 94 88 93 %>110 0 0 0 0 0 %>110 0 0 1 0 2 %>105 0 0 0 0 1 %>105 0 0 6 0 6 %>100 0 0 0 0 7 %>100 0 6 19 2 18 %>95 2 0 4 4 22 %>95 1 34 45 11 39 %>90 22 7 20 25 47 %>90 24 78 73 36 64 %>85 73 63 54 64 74 %>85 79 98 91 70 83 %>80 97 98 86 92 91 %>80 99 100 98 92 95 TAMPA_FL WASHINGTON_DC TPA 0827 0828 0829 0830 0831 DCA 0827 0828 0829 0830 0831 MAX 100 104 100 94 105 MAX 75 77 78 74 76 %>110 10 24 8 0 37 %>110 0 0 0 0 0 %>105 25 43 23 3 51 %>105 0 0 0 0 0 %>100 48 65 48 16 65 %>100 0 0 0 0 0 %>95 74 83 75 45 77 %>95 0 0 0 0 0 %>90 91 94 92 76 86 %>90 0 0 0 2 2 %>85 98 98 98 94 92 %>85 0 0 3 7 9 %>80 100 100 100 99 96 %>80 1 13 29 21 28 URL IS WWW.WPC.NCEP.NOAA.GOV $$