


Heat Index Forecast Tables
Issued by NWS
Issued by NWS
230 FMUS23 KWNH 271609 PRBEHI DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 1607 UTC WED AUG 27 2025 MEAN HEAT INDEX (DEG F) AND MEAN HI PROB (%) FRCSTS AT EASTERN US CITIES - DAYS 3 TO 7 FROM WED AUG 27 2025 AKRON-CANTON_OH ALBANY_NY CAK 0830 0831 0901 0902 0903 ALB 0830 0831 0901 0902 0903 MEAN 57 60 63 65 67 MEAN 58 61 63 64 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 1 %>80 0 0 0 0 0 %>75 0 0 1 3 6 %>75 0 0 0 0 1 %>70 0 0 7 18 29 %>70 0 0 1 4 12 ASHEVILLE_NC ATLANTA_GA AVL 0830 0831 0901 0902 0903 ATL 0830 0831 0901 0902 0903 MEAN 66 64 63 64 65 MEAN 74 74 72 72 74 %>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 1 0 0 0 0 %>80 0 0 0 0 0 %>80 8 5 1 2 4 %>75 1 1 0 1 1 %>75 40 37 19 24 37 %>70 14 8 7 8 12 %>70 81 84 71 73 86 BALTIMORE_MD BIRMINGHAM_AL BWI 0830 0831 0901 0902 0903 BHM 0830 0831 0901 0902 0903 MEAN 66 67 69 69 70 MEAN 75 74 74 74 76 %>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 8 6 6 6 11 %>75 0 1 2 5 11 %>75 45 38 39 41 57 %>70 11 20 34 39 54 %>70 87 84 84 87 94 BOSTON_MA BUFFALO_NY BOS 0830 0831 0901 0902 0903 BUF 0830 0831 0901 0902 0903 MEAN 64 64 64 65 65 MEAN 57 60 63 65 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 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 2 %>75 0 0 0 1 4 %>70 1 2 5 7 15 %>70 0 0 3 12 24 CHARLESTON_SC CHARLESTON_WV CHS 0830 0831 0901 0902 0903 CRW 0830 0831 0901 0902 0903 MEAN 79 78 76 76 77 MEAN 64 65 67 68 70 %>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 1 0 1 1 %>85 0 0 0 0 0 %>80 33 24 14 14 23 %>80 0 0 0 1 2 %>75 87 83 64 59 76 %>75 0 1 5 8 15 %>70 100 99 96 94 98 %>70 4 13 28 34 52 CHARLOTTE_NC CHICAGO_IL CLT 0830 0831 0901 0902 0903 ORD 0830 0831 0901 0902 0903 MEAN 73 70 69 70 72 MEAN 63 65 68 70 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 1 %>80 3 1 0 0 1 %>80 0 0 0 0 6 %>75 30 14 7 8 17 %>75 0 0 2 9 24 %>70 81 55 42 47 67 %>70 1 9 25 46 57 CINCINNATI_OH CLEVELAND_OH LUK 0830 0831 0901 0902 0903 CLE 0830 0831 0901 0902 0903 MEAN 62 64 67 68 71 MEAN 60 62 65 67 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 1 2 %>80 0 0 0 0 0 %>75 0 0 3 9 17 %>75 0 0 0 2 7 %>70 1 3 23 37 57 %>70 0 0 6 22 39 COLUMBIA_SC COLUMBUS_OH CAE 0830 0831 0901 0902 0903 TZR 0830 0831 0901 0902 0903 MEAN 75 74 73 72 74 MEAN 59 62 65 67 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 1 0 0 0 0 %>85 0 0 0 0 0 %>80 12 6 3 2 4 %>80 0 0 0 0 1 %>75 55 44 27 22 37 %>75 0 0 1 4 9 %>70 92 89 76 71 85 %>70 0 1 13 25 39 DAYTON_OH DETROIT_MI MGY 0830 0831 0901 0902 0903 DET 0830 0831 0901 0902 0903 MEAN 61 63 66 68 70 MEAN 60 63 66 68 70 %>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 6 13 %>75 0 0 0 3 11 %>70 0 1 13 31 49 %>70 0 1 7 31 48 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0830 0831 0901 0902 0903 GRR 0830 0831 0901 0902 0903 MEAN 67 67 68 70 73 MEAN 58 62 64 66 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 1 %>85 0 0 0 0 0 %>80 0 0 0 2 7 %>80 0 0 0 0 1 %>75 3 2 7 16 33 %>75 0 0 0 2 7 %>70 27 23 36 51 73 %>70 0 0 5 18 30 GREENSBORO_NC HUNTSVILLE_AL GSO 0830 0831 0901 0902 0903 HSV 0830 0831 0901 0902 0903 MEAN 70 68 66 67 69 MEAN 74 73 73 74 75 %>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 1 0 0 0 0 %>80 7 5 5 5 9 %>75 10 6 3 3 8 %>75 37 32 32 36 49 %>70 49 33 22 25 43 %>70 79 77 78 81 91 INDIANAPOLIS_IN KNOXVILLE_TN IND 0830 0831 0901 0902 0903 TYS 0830 0831 0901 0902 0903 MEAN 61 63 65 67 70 MEAN 72 71 70 71 72 %>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 1 1 1 1 3 %>75 0 0 1 6 14 %>75 19 16 12 14 22 %>70 1 1 11 29 50 %>70 65 60 52 56 66 LEXINGTON_KY LOUISVILLE_KY LEX 0830 0831 0901 0902 0903 SDF 0830 0831 0901 0902 0903 MEAN 65 66 67 69 71 MEAN 66 66 68 69 72 %>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 3 %>80 0 0 1 2 4 %>75 0 1 6 12 22 %>75 1 1 7 15 27 %>70 11 13 30 41 60 %>70 15 15 34 46 69 MEMPHIS_TN MIAMI_FL MEM 0830 0831 0901 0902 0903 MIA 0830 0831 0901 0902 0903 MEAN 73 73 73 74 77 MEAN 93 91 91 90 90 %>100 0 0 0 0 0 %>100 10 5 4 2 2 %>95 0 0 0 0 0 %>95 33 24 21 14 13 %>90 0 0 0 0 0 %>90 69 61 57 46 47 %>85 0 0 0 1 2 %>85 92 90 88 83 84 %>80 3 5 6 8 21 %>80 99 99 99 98 98 %>75 33 32 34 42 66 %>75 100 100 100 100 100 %>70 83 77 77 84 95 %>70 100 100 100 100 100 MILWAUKEE_WI MOBILE_AL MKE 0830 0831 0901 0902 0903 MOB 0830 0831 0901 0902 0903 MEAN 62 65 66 68 69 MEAN 80 81 81 81 82 %>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 1 1 1 1 1 %>85 0 0 0 0 0 %>85 11 12 13 12 17 %>80 0 0 0 0 2 %>80 49 57 56 57 68 %>75 0 1 2 6 14 %>75 88 93 92 93 97 %>70 2 8 18 33 42 %>70 99 100 100 100 100 NASHVILLE_TN NEW_YORK_CITY_NY BNA 0830 0831 0901 0902 0903 NYC 0830 0831 0901 0902 0903 MEAN 73 71 72 73 75 MEAN 65 67 69 68 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 1 %>85 0 0 0 0 0 %>80 1 1 4 6 10 %>80 0 0 0 0 0 %>75 22 17 24 30 47 %>75 0 0 1 4 6 %>70 78 60 65 70 87 %>70 6 15 31 28 40 NORFOLK_VA ORLANDO_FL ORF 0830 0831 0901 0902 0903 ORL 0830 0831 0901 0902 0903 MEAN 73 73 72 71 73 MEAN 86 86 85 85 86 %>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 0 %>90 11 11 8 8 14 %>85 0 0 0 0 0 %>85 60 56 47 49 57 %>80 0 0 0 1 1 %>80 96 94 90 91 92 %>75 20 15 12 15 24 %>75 100 100 100 100 100 %>70 89 86 84 63 82 %>70 100 100 100 100 100 PHILADELPHIA_PA PITTSBURGH_PA PHL 0830 0831 0901 0902 0903 PIT 0830 0831 0901 0902 0903 MEAN 65 66 67 67 68 MEAN 58 61 64 66 68 %>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 1 3 5 7 %>75 0 0 1 3 6 %>70 6 14 25 26 36 %>70 0 0 9 21 31 PORTLAND_ME PROVIDENCE_RI PWM 0830 0831 0901 0902 0903 PVD 0830 0831 0901 0902 0903 MEAN 62 62 63 63 64 MEAN 63 64 64 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 0 %>80 0 0 0 0 0 %>75 0 0 0 0 0 %>75 0 0 0 0 2 %>70 0 0 2 2 6 %>70 1 2 7 9 16 RALEIGH-DURHAM_NC RICHMOND_VA RDU 0830 0831 0901 0902 0903 RIC 0830 0831 0901 0902 0903 MEAN 73 71 69 70 71 MEAN 69 68 68 69 70 %>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 2 1 0 0 1 %>80 0 0 0 0 1 %>75 28 15 6 7 13 %>75 7 6 5 6 12 %>70 79 56 40 45 59 %>70 43 35 33 37 52 SAVANNAH_GA TALLAHASSEE_FL SAV 0830 0831 0901 0902 0903 TLH 0830 0831 0901 0902 0903 MEAN 78 78 77 77 78 MEAN 81 80 80 79 80 %>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 2 0 1 0 1 %>85 2 1 1 3 4 %>85 18 8 11 8 11 %>80 27 28 22 24 32 %>80 59 48 51 44 53 %>75 78 86 75 69 81 %>75 91 90 90 86 91 %>70 98 100 98 95 99 %>70 99 100 99 99 100 TAMPA_FL WASHINGTON_DC TPA 0830 0831 0901 0902 0903 DCA 0830 0831 0901 0902 0903 MEAN 87 86 86 86 87 MEAN 66 67 68 69 70 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 4 2 1 2 3 %>95 0 0 0 0 0 %>90 26 18 15 19 22 %>90 0 0 0 0 0 %>85 69 62 57 60 63 %>85 0 0 0 0 0 %>80 95 94 92 91 93 %>80 0 0 0 0 1 %>75 100 100 100 99 100 %>75 1 3 4 7 13 %>70 100 100 100 100 100 %>70 16 23 33 39 52 URL IS WWW.WPC.NCEP.NOAA.GOV $$