Heat Index Forecast Tables
Issued by NWS
Issued by NWS
162
FMUS23 KWNH 171609
PRBEHI
DAYS 3--7 HEAT INDEX FORECAST TABLES
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1607 UTC SUN AUG 17 2025
MEAN HEAT INDEX (DEG F) AND MEAN HI PROB (%) FRCSTS
AT EASTERN US CITIES - DAYS 3 TO 7 FROM SUN AUG 17 2025
AKRON-CANTON_OH ALBANY_NY
CAK 0820 0821 0822 0823 0824 ALB 0820 0821 0822 0823 0824
MEAN 77 75 74 75 72 MEAN 67 68 70 73 73
%>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 3 1 0 1 1 %>85 0 0 0 0 0
%>80 26 10 7 12 6 %>80 0 0 1 4 4
%>75 72 51 44 54 27 %>75 4 3 10 29 29
%>70 96 90 88 92 64 %>70 25 30 46 76 72
ASHEVILLE_NC ATLANTA_GA
AVL 0820 0821 0822 0823 0824 ATL 0820 0821 0822 0823 0824
MEAN 76 75 71 71 71 MEAN 86 85 82 80 81
%>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 12 7 3 1 1
%>85 1 1 0 0 0 %>85 68 52 27 12 13
%>80 12 9 3 2 3 %>80 98 95 73 49 55
%>75 65 47 20 19 20 %>75 100 100 97 87 92
%>70 96 88 59 58 63 %>70 100 100 100 99 100
BALTIMORE_MD BIRMINGHAM_AL
BWI 0820 0821 0822 0823 0824 BHM 0820 0821 0822 0823 0824
MEAN 77 76 76 76 79 MEAN 90 86 83 82 82
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 0 0 %>95 6 2 0 0 0
%>90 0 0 0 0 0 %>90 45 18 6 3 3
%>85 2 1 0 2 7 %>85 90 64 35 24 26
%>80 25 17 13 19 38 %>80 100 95 77 66 72
%>75 74 65 63 62 81 %>75 100 100 97 94 96
%>70 97 96 96 92 98 %>70 100 100 100 100 100
BOSTON_MA BUFFALO_NY
BOS 0820 0821 0822 0823 0824 BUF 0820 0821 0822 0823 0824
MEAN 65 66 70 73 75 MEAN 72 71 71 75 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 1 %>85 0 0 0 0 0
%>80 0 0 1 5 12 %>80 2 1 0 6 4
%>75 0 0 11 32 47 %>75 24 12 12 48 23
%>70 6 11 49 77 86 %>70 76 56 67 93 60
CHARLESTON_SC CHARLESTON_WV
CHS 0820 0821 0822 0823 0824 CRW 0820 0821 0822 0823 0824
MEAN 88 89 88 87 86 MEAN 84 80 79 79 77
%>100 0 1 1 1 0 %>100 0 0 0 0 0
%>95 1 9 7 6 2 %>95 0 0 0 0 0
%>90 23 43 32 26 16 %>90 7 1 0 1 1
%>85 79 84 69 63 57 %>85 39 14 7 11 6
%>80 99 98 93 90 91 %>80 83 50 38 41 26
%>75 100 100 99 99 99 %>75 99 87 81 79 63
%>70 100 100 100 100 100 %>70 100 99 98 96 90
CHARLOTTE_NC CHICAGO_IL
CLT 0820 0821 0822 0823 0824 ORD 0820 0821 0822 0823 0824
MEAN 82 83 79 78 79 MEAN 74 74 77 75 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 3 1 0 1 %>90 0 0 0 0 0
%>85 16 30 12 5 8 %>85 0 0 2 1 0
%>80 83 81 45 30 38 %>80 6 4 18 12 4
%>75 100 99 83 71 78 %>75 41 37 66 52 19
%>70 100 100 98 95 97 %>70 87 87 96 90 53
CINCINNATI_OH CLEVELAND_OH
LUK 0820 0821 0822 0823 0824 CLE 0820 0821 0822 0823 0824
MEAN 83 80 79 79 75 MEAN 77 74 74 76 72
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 1 0 0 0 0 %>95 0 0 0 0 0
%>90 7 2 1 0 1 %>90 0 0 0 0 0
%>85 33 15 12 8 5 %>85 1 0 0 1 0
%>80 74 47 44 42 22 %>80 19 7 6 13 6
%>75 96 81 81 85 52 %>75 67 43 42 60 30
%>70 100 97 97 99 82 %>70 96 86 87 95 69
COLUMBIA_SC COLUMBUS_OH
CAE 0820 0821 0822 0823 0824 TZR 0820 0821 0822 0823 0824
MEAN 85 87 84 82 82 MEAN 80 77 76 77 73
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 2 2 0 0 %>95 0 0 0 0 0
%>90 3 22 14 5 3 %>90 1 0 0 0 0
%>85 57 71 45 28 22 %>85 13 3 3 2 2
%>80 99 97 79 69 66 %>80 51 24 21 20 11
%>75 100 100 96 94 94 %>75 88 66 62 66 36
%>70 100 100 100 100 100 %>70 99 94 92 95 71
DAYTON_OH DETROIT_MI
MGY 0820 0821 0822 0823 0824 DET 0820 0821 0822 0823 0824
MEAN 82 78 78 78 74 MEAN 75 74 74 76 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 4 1 1 0 0 %>90 0 0 0 0 0
%>85 24 10 7 3 3 %>85 0 0 0 0 0
%>80 62 37 33 29 14 %>80 9 4 4 12 4
%>75 91 73 72 78 42 %>75 50 37 42 63 22
%>70 99 94 95 98 75 %>70 91 87 91 96 60
EVANSVILLE_IN GRAND_RAPIDS_MI
EVV 0820 0821 0822 0823 0824 GRR 0820 0821 0822 0823 0824
MEAN 84 81 82 81 77 MEAN 73 72 72 73 68
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 2 0 0 0 0 %>95 0 0 0 0 0
%>90 13 2 4 1 1 %>90 0 0 0 0 0
%>85 45 19 24 16 9 %>85 0 0 0 0 0
%>80 80 59 63 59 30 %>80 3 0 1 3 1
%>75 97 91 92 93 63 %>75 30 14 20 27 9
%>70 100 99 99 100 88 %>70 79 68 76 76 33
GREENSBORO_NC HUNTSVILLE_AL
GSO 0820 0821 0822 0823 0824 HSV 0820 0821 0822 0823 0824
MEAN 79 79 75 75 77 MEAN 89 85 82 82 81
%>100 0 0 0 0 0 %>100 1 0 0 0 0
%>95 0 0 0 0 0 %>95 10 1 0 0 0
%>90 0 0 0 0 0 %>90 45 11 3 3 2
%>85 2 7 3 3 4 %>85 85 53 25 23 16
%>80 37 39 16 18 25 %>80 99 92 68 66 57
%>75 92 83 47 54 66 %>75 100 100 95 94 91
%>70 100 98 80 86 93 %>70 100 100 100 100 99
INDIANAPOLIS_IN KNOXVILLE_TN
IND 0820 0821 0822 0823 0824 TYS 0820 0821 0822 0823 0824
MEAN 80 77 77 77 73 MEAN 86 83 80 79 79
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 0 0 %>95 2 0 0 0 0
%>90 3 0 1 0 0 %>90 17 4 2 1 1
%>85 18 5 7 2 2 %>85 54 28 15 12 9
%>80 51 26 30 23 12 %>80 88 73 52 45 40
%>75 84 65 68 70 37 %>75 99 97 88 83 80
%>70 97 92 93 96 69 %>70 100 100 99 98 97
LEXINGTON_KY LOUISVILLE_KY
LEX 0820 0821 0822 0823 0824 SDF 0820 0821 0822 0823 0824
MEAN 84 81 80 80 76 MEAN 85 82 82 81 77
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 0 0 %>95 1 1 0 0 0
%>90 8 2 1 0 0 %>90 12 6 4 1 1
%>85 42 17 9 9 5 %>85 51 28 25 16 8
%>80 85 55 47 49 23 %>80 89 65 64 62 31
%>75 99 89 88 90 58 %>75 99 91 92 94 66
%>70 100 99 99 100 88 %>70 100 99 99 100 90
MEMPHIS_TN MIAMI_FL
MEM 0820 0821 0822 0823 0824 MIA 0820 0821 0822 0823 0824
MEAN 92 86 84 85 82 MEAN 95 95 94 94 93
%>100 3 0 0 0 0 %>100 13 17 10 12 6
%>95 23 2 0 0 0 %>95 43 48 39 40 33
%>90 63 17 8 8 3 %>90 82 85 78 77 76
%>85 92 55 43 46 26 %>85 98 99 97 96 97
%>80 99 89 86 90 71 %>80 100 100 100 100 100
%>75 100 99 99 100 96 %>75 100 100 100 100 100
%>70 100 100 100 100 100 %>70 100 100 100 100 100
MILWAUKEE_WI MOBILE_AL
MKE 0820 0821 0822 0823 0824 MOB 0820 0821 0822 0823 0824
MEAN 71 71 74 72 67 MEAN 92 91 89 89 88
%>100 0 0 0 0 0 %>100 2 1 1 2 1
%>95 0 0 0 0 0 %>95 21 15 9 14 9
%>90 0 0 0 0 0 %>90 68 63 43 43 36
%>85 0 0 1 0 0 %>85 96 95 83 77 74
%>80 2 1 6 4 1 %>80 100 100 98 95 95
%>75 12 10 38 26 7 %>75 100 100 100 99 100
%>70 60 65 86 69 29 %>70 100 100 100 100 100
NASHVILLE_TN NEW_YORK_CITY_NY
BNA 0820 0821 0822 0823 0824 NYC 0820 0821 0822 0823 0824
MEAN 90 85 83 83 80 MEAN 72 74 75 76 78
%>100 2 0 0 0 0 %>100 0 0 0 0 0
%>95 13 1 0 0 0 %>95 0 0 0 0 0
%>90 47 10 3 3 2 %>90 0 0 0 0 0
%>85 84 48 28 27 15 %>85 0 0 0 1 2
%>80 98 87 74 75 53 %>80 0 3 7 14 26
%>75 100 99 97 97 88 %>75 15 36 49 62 76
%>70 100 100 100 100 99 %>70 81 88 93 95 98
NORFOLK_VA ORLANDO_FL
ORF 0820 0821 0822 0823 0824 ORL 0820 0821 0822 0823 0824
MEAN 81 78 77 78 80 MEAN 91 93 93 91 92
%>100 0 0 0 0 0 %>100 1 5 8 5 7
%>95 0 0 0 0 0 %>95 18 30 33 24 29
%>90 0 0 0 0 0 %>90 65 73 69 60 64
%>85 4 2 0 2 8 %>85 96 96 93 89 90
%>80 63 29 11 27 51 %>80 100 100 99 99 99
%>75 99 83 75 80 93 %>75 100 100 100 100 100
%>70 100 99 100 99 100 %>70 100 100 100 100 100
PHILADELPHIA_PA PITTSBURGH_PA
PHL 0820 0821 0822 0823 0824 PIT 0820 0821 0822 0823 0824
MEAN 74 74 75 75 77 MEAN 78 75 75 76 73
%>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 4 %>85 4 0 1 2 1
%>80 7 5 6 11 26 %>80 31 10 12 18 10
%>75 44 42 48 49 67 %>75 78 54 53 61 37
%>70 89 88 93 87 94 %>70 98 93 91 93 73
PORTLAND_ME PROVIDENCE_RI
PWM 0820 0821 0822 0823 0824 PVD 0820 0821 0822 0823 0824
MEAN 64 65 68 70 72 MEAN 66 67 71 73 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 0 0 0 1 3 %>80 0 0 1 4 7
%>75 0 0 3 11 22 %>75 1 1 13 29 45
%>70 1 5 30 48 67 %>70 13 23 55 76 89
RALEIGH-DURHAM_NC RICHMOND_VA
RDU 0820 0821 0822 0823 0824 RIC 0820 0821 0822 0823 0824
MEAN 81 81 77 77 79 MEAN 80 78 76 77 79
%>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 1 0 0 1 %>90 0 0 0 0 1
%>85 8 13 3 4 10 %>85 8 5 2 4 11
%>80 69 60 25 25 43 %>80 54 32 18 25 44
%>75 99 95 68 67 82 %>75 95 77 57 67 82
%>70 100 100 94 94 98 %>70 100 97 90 94 98
SAVANNAH_GA TALLAHASSEE_FL
SAV 0820 0821 0822 0823 0824 TLH 0820 0821 0822 0823 0824
MEAN 89 91 89 88 87 MEAN 92 92 91 89 89
%>100 0 2 1 1 0 %>100 5 3 2 1 2
%>95 5 18 12 8 4 %>95 26 23 19 11 13
%>90 38 59 42 32 26 %>90 66 69 59 40 42
%>85 87 91 79 69 67 %>85 93 96 91 78 76
%>80 99 99 97 93 94 %>80 99 100 99 96 95
%>75 100 100 100 99 100 %>75 100 100 100 100 99
%>70 100 100 100 100 100 %>70 100 100 100 100 100
TAMPA_FL WASHINGTON_DC
TPA 0820 0821 0822 0823 0824 DCA 0820 0821 0822 0823 0824
MEAN 92 94 93 93 93 MEAN 78 77 76 76 79
%>100 3 9 9 11 10 %>100 0 0 0 0 0
%>95 26 42 37 34 34 %>95 0 0 0 0 0
%>90 72 84 75 67 67 %>90 0 0 0 0 1
%>85 96 99 95 90 90 %>85 3 2 1 4 8
%>80 100 100 100 98 98 %>80 30 20 17 23 39
%>75 100 100 100 100 100 %>75 79 66 62 60 79
%>70 100 100 100 100 100 %>70 98 95 94 89 97
URL IS WWW.WPC.NCEP.NOAA.GOV
$$