


Heat Index Forecast Tables
Issued by NWS
Issued by NWS
444 FMUS23 KWNH 171609 PRBEHI DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 1607 UTC TUE JUN 17 2025 MEAN HEAT INDEX (DEG F) AND MEAN HI PROB (%) FRCSTS AT EASTERN US CITIES - DAYS 3 TO 7 FROM TUE JUN 17 2025 AKRON-CANTON_OH ALBANY_NY CAK 0620 0621 0622 0623 0624 ALB 0620 0621 0622 0623 0624 MEAN 72 78 85 87 88 MEAN 71 75 84 90 89 %>100 0 0 0 0 0 %>100 0 0 2 8 5 %>95 0 0 1 2 6 %>95 0 0 7 23 19 %>90 0 0 13 25 34 %>90 0 1 20 47 45 %>85 0 3 53 74 76 %>85 0 5 42 73 75 %>80 1 31 90 97 97 %>80 2 20 69 90 93 %>75 21 81 99 100 100 %>75 19 50 88 98 99 %>70 76 99 100 100 100 %>70 59 79 97 100 100 ASHEVILLE_NC ATLANTA_GA AVL 0620 0621 0622 0623 0624 ATL 0620 0621 0622 0623 0624 MEAN 75 77 79 80 81 MEAN 84 85 87 87 88 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 1 2 6 %>90 0 0 1 2 4 %>90 4 6 19 23 35 %>85 0 2 7 14 21 %>85 41 52 69 75 78 %>80 7 19 38 51 61 %>80 90 95 97 98 97 %>75 51 66 82 87 91 %>75 100 100 100 100 100 %>70 93 96 98 99 99 %>70 100 100 100 100 100 BALTIMORE_MD BIRMINGHAM_AL BWI 0620 0621 0622 0623 0624 BHM 0620 0621 0622 0623 0624 MEAN 77 81 88 92 95 MEAN 85 87 88 88 89 %>100 0 0 1 11 18 %>100 0 0 0 0 1 %>95 0 0 10 34 47 %>95 0 1 3 6 10 %>90 0 1 34 64 78 %>90 5 18 29 35 42 %>85 0 13 70 87 94 %>85 45 69 78 79 80 %>80 17 62 92 97 99 %>80 92 97 98 98 97 %>75 76 96 99 100 100 %>75 100 100 100 100 100 %>70 99 100 100 100 100 %>70 100 100 100 100 100 BOSTON_MA BUFFALO_NY BOS 0620 0621 0622 0623 0624 BUF 0620 0621 0622 0623 0624 MEAN 73 74 79 84 87 MEAN 69 76 82 84 84 %>100 0 0 0 4 9 %>100 0 0 0 0 0 %>95 0 0 1 12 20 %>95 0 0 0 0 2 %>90 0 0 5 25 37 %>90 0 1 3 6 13 %>85 0 1 19 44 57 %>85 0 6 20 38 42 %>80 4 10 44 65 76 %>80 0 24 64 83 77 %>75 32 40 72 83 89 %>75 6 59 94 98 95 %>70 79 78 91 93 96 %>70 37 88 99 100 99 CHARLESTON_SC CHARLESTON_WV CHS 0620 0621 0622 0623 0624 CRW 0620 0621 0622 0623 0624 MEAN 91 89 90 91 91 MEAN 76 81 88 90 91 %>100 3 1 1 3 2 %>100 0 0 2 7 7 %>95 19 11 12 20 17 %>95 0 1 12 23 26 %>90 55 43 49 57 54 %>90 0 6 36 52 58 %>85 88 81 87 89 88 %>85 2 26 67 80 85 %>80 99 97 99 99 99 %>80 18 61 90 95 97 %>75 100 100 100 100 100 %>75 61 89 98 99 100 %>70 100 100 100 100 100 %>70 93 98 100 100 100 CHARLOTTE_NC CHICAGO_IL CLT 0620 0621 0622 0623 0624 ORD 0620 0621 0622 0623 0624 MEAN 83 85 88 89 90 MEAN 77 87 88 87 85 %>100 0 0 0 1 2 %>100 0 0 0 0 2 %>95 0 1 4 11 15 %>95 0 3 5 4 9 %>90 2 14 31 45 52 %>90 0 26 36 27 25 %>85 25 54 79 84 87 %>85 1 68 80 71 52 %>80 80 91 98 98 99 %>80 19 92 97 96 78 %>75 99 99 100 100 100 %>75 75 99 100 100 93 %>70 100 100 100 100 100 %>70 98 100 100 100 99 CINCINNATI_OH CLEVELAND_OH LUK 0620 0621 0622 0623 0624 CLE 0620 0621 0622 0623 0624 MEAN 77 82 88 90 90 MEAN 74 79 85 87 87 %>100 0 0 1 1 1 %>100 0 0 0 0 1 %>95 0 0 7 11 13 %>95 0 0 2 5 8 %>90 0 4 33 47 51 %>90 0 0 17 29 29 %>85 2 27 73 86 88 %>85 0 5 54 69 61 %>80 20 68 95 99 99 %>80 5 37 88 93 86 %>75 68 94 100 100 100 %>75 35 84 99 99 96 %>70 96 100 100 100 100 %>70 82 99 100 100 99 COLUMBIA_SC COLUMBUS_OH CAE 0620 0621 0622 0623 0624 TZR 0620 0621 0622 0623 0624 MEAN 88 89 89 90 91 MEAN 75 80 87 89 89 %>100 0 1 0 2 3 %>100 0 0 0 0 0 %>95 5 9 6 14 19 %>95 0 0 3 7 7 %>90 29 41 41 53 56 %>90 0 1 22 39 40 %>85 74 83 87 89 89 %>85 0 12 64 83 84 %>80 97 98 99 99 99 %>80 8 53 93 99 99 %>75 100 100 100 100 100 %>75 50 91 100 100 100 %>70 100 100 100 100 100 %>70 93 99 100 100 100 DAYTON_OH DETROIT_MI MGY 0620 0621 0622 0623 0624 DET 0620 0621 0622 0623 0624 MEAN 76 82 88 90 90 MEAN 75 83 89 90 89 %>100 0 0 1 1 1 %>100 0 0 1 1 5 %>95 0 0 8 13 10 %>95 0 0 8 11 18 %>90 0 4 35 48 46 %>90 0 6 40 48 44 %>85 1 26 73 85 86 %>85 0 34 81 86 72 %>80 15 66 94 98 99 %>80 6 77 97 98 91 %>75 61 93 100 100 100 %>75 50 97 100 100 98 %>70 95 99 100 100 100 %>70 94 100 100 100 100 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0620 0621 0622 0623 0624 GRR 0620 0621 0622 0623 0624 MEAN 80 86 91 90 90 MEAN 74 85 89 87 86 %>100 0 0 1 0 1 %>100 0 0 0 0 2 %>95 0 3 13 11 11 %>95 0 2 7 5 8 %>90 1 21 55 55 49 %>90 0 15 39 29 26 %>85 11 62 92 93 89 %>85 1 49 83 71 54 %>80 54 92 100 100 99 %>80 8 83 98 95 81 %>75 92 99 100 100 100 %>75 39 98 100 100 95 %>70 100 100 100 100 100 %>70 81 100 100 100 99 GREENSBORO_NC HUNTSVILLE_AL GSO 0620 0621 0622 0623 0624 HSV 0620 0621 0622 0623 0624 MEAN 79 82 86 89 90 MEAN 84 86 88 89 90 %>100 0 0 0 1 2 %>100 0 0 1 2 5 %>95 0 0 2 8 14 %>95 1 3 8 12 20 %>90 0 1 17 39 49 %>90 9 19 36 42 49 %>85 3 18 60 80 84 %>85 39 58 76 80 80 %>80 41 68 93 97 98 %>80 80 91 96 97 95 %>75 93 97 100 100 100 %>75 97 99 100 100 99 %>70 100 100 100 100 100 %>70 100 100 100 100 100 INDIANAPOLIS_IN KNOXVILLE_TN IND 0620 0621 0622 0623 0624 TYS 0620 0621 0622 0623 0624 MEAN 77 84 89 89 88 MEAN 80 82 86 87 88 %>100 0 0 0 0 0 %>100 0 0 1 2 2 %>95 0 1 6 5 3 %>95 0 1 6 10 11 %>90 0 7 36 38 30 %>90 2 8 26 33 35 %>85 1 37 80 87 81 %>85 16 32 59 65 67 %>80 18 79 98 100 99 %>80 49 68 87 89 90 %>75 71 97 100 100 100 %>75 84 92 98 98 98 %>70 98 100 100 100 100 %>70 98 99 100 100 100 LEXINGTON_KY LOUISVILLE_KY LEX 0620 0621 0622 0623 0624 SDF 0620 0621 0622 0623 0624 MEAN 76 81 85 87 88 MEAN 78 83 88 90 90 %>100 0 0 0 0 0 %>100 0 0 0 1 1 %>95 0 0 0 2 5 %>95 0 1 6 13 13 %>90 0 1 10 23 35 %>90 0 7 35 50 49 %>85 0 12 55 73 80 %>85 5 35 78 88 86 %>80 11 58 94 98 98 %>80 34 78 97 99 98 %>75 62 94 100 100 100 %>75 81 97 100 100 100 %>70 97 100 100 100 100 %>70 98 100 100 100 100 MEMPHIS_TN MIAMI_FL MEM 0620 0621 0622 0623 0624 MIA 0620 0621 0622 0623 0624 MEAN 87 91 92 91 91 MEAN 91 91 92 91 90 %>100 0 1 5 3 4 %>100 3 4 5 4 4 %>95 2 15 26 21 22 %>95 20 22 25 22 19 %>90 21 57 66 58 58 %>90 62 61 63 61 52 %>85 66 92 93 89 88 %>85 93 92 92 92 85 %>80 95 100 99 99 98 %>80 100 99 99 99 98 %>75 100 100 100 100 100 %>75 100 100 100 100 100 %>70 100 100 100 100 100 %>70 100 100 100 100 100 MILWAUKEE_WI MOBILE_AL MKE 0620 0621 0622 0623 0624 MOB 0620 0621 0622 0623 0624 MEAN 74 82 84 83 79 MEAN 91 90 89 90 90 %>100 0 0 0 0 1 %>100 1 0 1 2 3 %>95 0 2 2 1 3 %>95 15 9 9 15 17 %>90 0 11 11 9 10 %>90 56 52 45 49 51 %>85 1 34 40 34 24 %>85 91 92 86 84 84 %>80 10 64 76 72 45 %>80 99 100 99 98 97 %>75 39 87 94 93 69 %>75 100 100 100 100 100 %>70 77 97 99 99 88 %>70 100 100 100 100 100 NASHVILLE_TN NEW_YORK_CITY_NY BNA 0620 0621 0622 0623 0624 NYC 0620 0621 0622 0623 0624 MEAN 83 86 89 91 91 MEAN 75 78 84 89 91 %>100 0 0 1 4 6 %>100 0 0 0 5 9 %>95 1 3 11 20 25 %>95 0 0 3 18 28 %>90 7 18 44 55 59 %>90 0 0 16 44 56 %>85 32 57 83 86 87 %>85 0 5 46 72 81 %>80 71 90 98 98 98 %>80 7 33 78 91 95 %>75 94 99 100 100 100 %>75 50 78 95 98 99 %>70 99 100 100 100 100 %>70 93 98 99 100 100 NORFOLK_VA ORLANDO_FL ORF 0620 0621 0622 0623 0624 ORL 0620 0621 0622 0623 0624 MEAN 81 82 87 90 93 MEAN 90 90 89 90 89 %>100 0 0 1 8 15 %>100 1 1 0 2 1 %>95 0 0 9 24 38 %>95 13 10 8 14 7 %>90 2 2 30 52 66 %>90 53 46 43 47 39 %>85 16 21 64 79 87 %>85 90 86 87 83 81 %>80 58 68 90 95 97 %>80 99 99 99 98 98 %>75 93 97 98 99 100 %>75 100 100 100 100 100 %>70 100 100 100 100 100 %>70 100 100 100 100 100 PHILADELPHIA_PA PITTSBURGH_PA PHL 0620 0621 0622 0623 0624 PIT 0620 0621 0622 0623 0624 MEAN 75 79 86 92 93 MEAN 72 78 85 89 89 %>100 0 0 0 10 14 %>100 0 0 0 1 1 %>95 0 0 4 31 40 %>95 0 0 2 10 11 %>90 0 0 20 61 71 %>90 0 0 17 40 43 %>85 0 4 56 86 92 %>85 0 3 54 79 82 %>80 5 39 87 97 99 %>80 1 29 88 97 98 %>75 53 88 98 100 100 %>75 21 80 99 100 100 %>70 96 99 100 100 100 %>70 77 99 100 100 100 PORTLAND_ME PROVIDENCE_RI PWM 0620 0621 0622 0623 0624 PVD 0620 0621 0622 0623 0624 MEAN 70 67 72 77 80 MEAN 74 75 79 85 88 %>100 0 0 0 0 2 %>100 0 0 0 3 8 %>95 0 0 0 2 6 %>95 0 0 1 11 20 %>90 0 0 0 6 14 %>90 0 0 5 26 40 %>85 0 0 3 16 28 %>85 0 2 18 48 64 %>80 0 1 11 34 48 %>80 3 14 45 71 83 %>75 6 5 33 57 68 %>75 32 48 75 88 94 %>70 48 27 63 79 85 %>70 86 85 93 96 98 RALEIGH-DURHAM_NC RICHMOND_VA RDU 0620 0621 0622 0623 0624 RIC 0620 0621 0622 0623 0624 MEAN 84 85 90 93 94 MEAN 81 83 91 95 97 %>100 0 0 3 13 14 %>100 0 0 10 25 33 %>95 0 2 16 38 41 %>95 0 0 29 49 59 %>90 7 17 47 70 73 %>90 0 7 56 73 82 %>85 39 53 81 91 93 %>85 11 36 81 90 94 %>80 83 87 97 99 99 %>80 61 78 94 97 99 %>75 99 99 100 100 100 %>75 96 97 99 99 100 %>70 100 100 100 100 100 %>70 100 100 100 100 100 SAVANNAH_GA TALLAHASSEE_FL SAV 0620 0621 0622 0623 0624 TLH 0620 0621 0622 0623 0624 MEAN 90 89 89 90 89 MEAN 90 90 90 90 90 %>100 2 1 1 1 1 %>100 2 1 2 2 2 %>95 16 9 8 9 10 %>95 15 12 15 14 17 %>90 54 42 43 45 44 %>90 53 48 51 48 52 %>85 88 83 85 87 84 %>85 88 87 86 84 86 %>80 99 98 99 99 98 %>80 99 99 98 98 98 %>75 100 100 100 100 100 %>75 100 100 100 100 100 %>70 100 100 100 100 100 %>70 100 100 100 100 100 TAMPA_FL WASHINGTON_DC TPA 0620 0621 0622 0623 0624 DCA 0620 0621 0622 0623 0624 MEAN 90 90 91 91 90 MEAN 77 81 88 93 96 %>100 1 3 5 3 2 %>100 0 0 1 15 25 %>95 12 17 23 20 16 %>95 0 0 10 40 56 %>90 46 52 58 57 52 %>90 0 1 38 70 83 %>85 84 85 88 88 86 %>85 0 15 74 90 96 %>80 98 98 98 99 98 %>80 16 67 95 98 99 %>75 100 100 100 100 100 %>75 78 97 99 100 100 %>70 100 100 100 100 100 %>70 99 100 100 100 100 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