


Heat Index Forecast Tables
Issued by NWS
Issued by NWS
655 FMUS23 KWNH 241609 PRBEHI DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 1607 UTC SUN AUG 24 2025 MEAN HEAT INDEX (DEG F) AND MEAN 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 MEAN 58 60 60 58 60 MEAN 61 63 61 58 62 %>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 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 1 2 %>75 0 0 0 0 0 %>70 0 0 4 6 9 %>70 0 1 1 2 5 ASHEVILLE_NC ATLANTA_GA AVL 0827 0828 0829 0830 0831 ATL 0827 0828 0829 0830 0831 MEAN 61 61 63 65 64 MEAN 70 70 71 71 71 %>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 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 3 1 2 %>75 0 0 1 1 1 %>75 3 6 21 15 21 %>70 1 2 10 11 11 %>70 52 46 62 57 62 BALTIMORE_MD BIRMINGHAM_AL BWI 0827 0828 0829 0830 0831 BHM 0827 0828 0829 0830 0831 MEAN 66 66 68 63 65 MEAN 69 68 70 69 71 %>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 0 0 %>85 0 0 0 1 1 %>80 0 0 1 2 2 %>80 0 2 4 5 7 %>75 0 2 7 7 9 %>75 4 12 19 19 27 %>70 7 18 33 19 24 %>70 34 37 49 46 59 BOSTON_MA BUFFALO_NY BOS 0827 0828 0829 0830 0831 BUF 0827 0828 0829 0830 0831 MEAN 66 66 66 61 64 MEAN 59 62 57 59 60 %>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 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 1 1 1 %>75 0 0 0 0 1 %>70 3 5 17 8 12 %>70 0 1 2 2 6 CHARLESTON_SC CHARLESTON_WV CHS 0827 0828 0829 0830 0831 CRW 0827 0828 0829 0830 0831 MEAN 78 77 78 78 78 MEAN 62 62 64 62 63 %>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 2 0 6 4 4 %>85 0 0 0 0 0 %>80 31 16 34 31 30 %>80 0 0 0 0 1 %>75 87 74 77 77 74 %>75 0 0 1 2 6 %>70 100 98 97 97 96 %>70 1 3 9 11 17 CHARLOTTE_NC CHICAGO_IL CLT 0827 0828 0829 0830 0831 ORD 0827 0828 0829 0830 0831 MEAN 69 67 70 72 70 MEAN 62 64 64 63 64 %>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 0 0 %>85 0 0 0 0 0 %>80 0 0 3 1 2 %>80 0 0 0 0 0 %>75 1 4 17 20 15 %>75 0 1 1 2 3 %>70 33 25 52 72 52 %>70 0 11 11 10 15 CINCINNATI_OH CLEVELAND_OH LUK 0827 0828 0829 0830 0831 CLE 0827 0828 0829 0830 0831 MEAN 60 63 66 63 64 MEAN 61 64 61 61 64 %>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 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 1 %>80 0 0 0 0 0 %>75 0 0 1 2 4 %>75 0 0 0 1 1 %>70 0 2 13 10 17 %>70 0 2 3 5 10 COLUMBIA_SC COLUMBUS_OH CAE 0827 0828 0829 0830 0831 TZR 0827 0828 0829 0830 0831 MEAN 73 70 73 76 74 MEAN 59 61 65 60 60 %>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 1 %>85 0 0 0 0 0 %>80 1 2 8 17 9 %>80 0 0 0 0 1 %>75 22 16 35 56 43 %>75 0 0 1 1 3 %>70 79 51 75 90 83 %>70 0 1 10 7 11 DAYTON_OH DETROIT_MI MGY 0827 0828 0829 0830 0831 DET 0827 0828 0829 0830 0831 MEAN 59 62 65 61 62 MEAN 61 63 59 60 63 %>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 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 1 3 %>75 0 0 1 1 1 %>70 0 1 9 7 12 %>70 0 6 6 6 11 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0827 0828 0829 0830 0831 GRR 0827 0828 0829 0830 0831 MEAN 61 65 67 67 66 MEAN 57 61 56 56 59 %>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 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 2 %>80 0 0 0 0 0 %>75 0 1 3 6 9 %>75 0 0 1 1 1 %>70 1 14 25 27 28 %>70 0 3 3 4 6 GREENSBORO_NC HUNTSVILLE_AL GSO 0827 0828 0829 0830 0831 HSV 0827 0828 0829 0830 0831 MEAN 67 66 67 68 65 MEAN 67 66 69 71 71 %>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 0 0 %>85 0 0 0 0 0 %>80 0 0 1 0 2 %>80 0 0 1 2 4 %>75 0 1 8 6 8 %>75 2 5 11 21 24 %>70 15 13 32 33 24 %>70 20 24 40 64 61 INDIANAPOLIS_IN KNOXVILLE_TN IND 0827 0828 0829 0830 0831 TYS 0827 0828 0829 0830 0831 MEAN 59 61 65 61 61 MEAN 64 64 66 69 69 %>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 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 1 %>80 0 0 0 0 1 %>75 0 0 1 1 3 %>75 0 0 3 5 8 %>70 0 3 11 8 12 %>70 5 6 20 37 39 LEXINGTON_KY LOUISVILLE_KY LEX 0827 0828 0829 0830 0831 SDF 0827 0828 0829 0830 0831 MEAN 60 62 64 64 64 MEAN 61 65 67 65 65 %>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 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 2 %>80 0 0 0 0 1 %>75 0 0 2 3 7 %>75 0 0 2 4 7 %>70 0 4 14 16 20 %>70 0 7 22 19 23 MEMPHIS_TN MIAMI_FL MEM 0827 0828 0829 0830 0831 MIA 0827 0828 0829 0830 0831 MEAN 69 69 65 71 71 MEAN 93 95 95 93 93 %>100 0 0 0 0 0 %>100 6 19 16 13 14 %>95 0 0 0 0 0 %>95 32 52 45 36 36 %>90 0 0 0 0 0 %>90 77 85 79 68 66 %>85 0 0 0 0 2 %>85 97 98 96 91 89 %>80 0 2 2 4 9 %>80 100 100 100 99 98 %>75 1 14 8 21 27 %>75 100 100 100 100 100 %>70 35 44 25 55 54 %>70 100 100 100 100 100 MILWAUKEE_WI MOBILE_AL MKE 0827 0828 0829 0830 0831 MOB 0827 0828 0829 0830 0831 MEAN 60 64 59 60 63 MEAN 77 77 82 80 83 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 1 0 1 %>90 0 0 0 0 0 %>90 1 2 7 2 7 %>85 0 0 0 0 0 %>85 6 10 30 15 34 %>80 0 0 0 0 0 %>80 29 31 64 53 73 %>75 0 0 0 0 1 %>75 68 61 90 87 95 %>70 0 5 2 4 7 %>70 93 86 99 99 100 NASHVILLE_TN NEW_YORK_CITY_NY BNA 0827 0828 0829 0830 0831 NYC 0827 0828 0829 0830 0831 MEAN 65 66 67 71 69 MEAN 68 69 68 64 67 %>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 0 0 %>85 0 0 0 0 0 %>80 0 0 0 2 3 %>80 0 0 0 1 0 %>75 0 2 5 16 15 %>75 0 1 6 5 5 %>70 8 18 28 55 41 %>70 16 29 32 18 27 NORFOLK_VA ORLANDO_FL ORF 0827 0828 0829 0830 0831 ORL 0827 0828 0829 0830 0831 MEAN 73 74 74 72 71 MEAN 88 87 86 83 85 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 3 1 0 0 2 %>90 0 0 0 0 0 %>90 30 18 11 4 15 %>85 0 0 0 0 0 %>85 79 79 57 29 54 %>80 0 1 2 0 2 %>80 98 99 95 74 89 %>75 23 32 41 17 19 %>75 100 100 100 97 99 %>70 94 95 94 77 62 %>70 100 100 100 100 100 PHILADELPHIA_PA PITTSBURGH_PA PHL 0827 0828 0829 0830 0831 PIT 0827 0828 0829 0830 0831 MEAN 66 66 67 62 64 MEAN 61 61 63 59 60 %>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 0 0 %>85 0 0 0 0 0 %>80 0 0 1 2 2 %>80 0 0 0 0 1 %>75 0 1 6 7 8 %>75 0 0 0 2 3 %>70 8 12 29 19 22 %>70 0 1 6 7 11 PORTLAND_ME PROVIDENCE_RI PWM 0827 0828 0829 0830 0831 PVD 0827 0828 0829 0830 0831 MEAN 63 64 64 59 64 MEAN 66 66 67 62 64 %>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 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 0 %>75 0 0 1 1 1 %>70 0 0 3 2 6 %>70 8 5 21 9 12 RALEIGH-DURHAM_NC RICHMOND_VA RDU 0827 0828 0829 0830 0831 RIC 0827 0828 0829 0830 0831 MEAN 70 69 70 71 68 MEAN 70 68 69 67 66 %>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 0 0 %>85 0 0 0 0 1 %>80 0 0 2 2 3 %>80 0 0 1 2 3 %>75 3 3 17 17 13 %>75 2 2 13 11 12 %>70 52 33 54 60 36 %>70 51 29 45 32 30 SAVANNAH_GA TALLAHASSEE_FL SAV 0827 0828 0829 0830 0831 TLH 0827 0828 0829 0830 0831 MEAN 79 78 78 79 81 MEAN 78 82 83 81 83 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 1 %>90 0 0 0 0 3 %>90 0 1 6 1 10 %>85 2 2 5 5 20 %>85 1 16 33 15 38 %>80 30 30 29 36 55 %>80 28 70 77 59 74 %>75 90 84 72 81 87 %>75 85 98 97 93 95 %>70 100 99 96 98 98 %>70 100 100 100 100 99 TAMPA_FL WASHINGTON_DC TPA 0827 0828 0829 0830 0831 DCA 0827 0828 0829 0830 0831 MEAN 90 91 89 86 91 MEAN 67 66 67 63 64 %>100 4 3 1 0 13 %>100 0 0 0 0 0 %>95 18 19 10 2 32 %>95 0 0 0 0 0 %>90 52 57 42 18 57 %>90 0 0 0 0 0 %>85 85 90 82 57 79 %>85 0 0 0 1 1 %>80 98 99 98 90 93 %>80 0 0 2 3 3 %>75 100 100 100 99 98 %>75 0 2 10 9 10 %>70 100 100 100 100 100 %>70 11 20 30 22 25 URL IS WWW.WPC.NCEP.NOAA.GOV $$