Heat Index Forecast Tables
Issued by NWS
Issued by NWS
820
FMUS23 KWNH 181819
PRBEHL
DAYS 3--7 HEAT INDEX FORECAST TABLES
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1817 UTC FRI SEP 18 2026
MINIMUM HEAT INDEX (DEG F) AND MINIMUM HI PROB (%) FRCSTS
AT EASTERN US CITIES - DAYS 3 TO 7 FROM FRI SEP 18 2026
AKRON-CANTON_OH ALBANY_NY
CAK 0921 0922 0923 0924 0925 ALB 0921 0922 0923 0924 0925
MIN 57 56 55 53 52 MIN 50 45 44 44 47
%>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 0
%>70 0 0 0 0 0 %>70 0 0 0 0 0
ASHEVILLE_NC ATLANTA_GA
AVL 0921 0922 0923 0924 0925 ATL 0921 0922 0923 0924 0925
MIN 63 63 61 57 55 MIN 72 71 71 67 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 6 6 7 2 1
%>70 2 3 2 0 0 %>70 76 73 60 20 9
BALTIMORE_MD BIRMINGHAM_AL
BWI 0921 0922 0923 0924 0925 BHM 0921 0922 0923 0924 0925
MIN 67 62 57 57 57 MIN 73 72 70 66 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 3 2 0 0 0
%>75 3 0 0 0 0 %>75 27 21 9 2 1
%>70 26 2 0 1 1 %>70 75 67 55 19 10
BOSTON_MA BUFFALO_NY
BOS 0921 0922 0923 0924 0925 BUF 0921 0922 0923 0924 0925
MIN 55 52 52 51 52 MIN 50 48 48 49 50
%>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 0
%>70 0 0 0 0 0 %>70 0 0 0 0 0
CHARLESTON_SC CHARLESTON_WV
CHS 0921 0922 0923 0924 0925 CRW 0921 0922 0923 0924 0925
MIN 75 75 74 71 70 MIN 68 66 62 58 56
%>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 3 4 3 2 2 %>80 0 0 0 0 0
%>75 49 47 35 20 15 %>75 0 0 0 0 0
%>70 97 96 89 63 52 %>70 17 11 2 1 1
CHARLOTTE_NC CHICAGO_IL
CLT 0921 0922 0923 0924 0925 ORD 0921 0922 0923 0924 0925
MIN 70 69 66 62 61 MIN 55 53 53 52 54
%>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 7 4 2 0 0 %>75 0 0 0 0 0
%>70 50 39 18 5 3 %>70 0 0 0 0 0
CINCINNATI_OH CLEVELAND_OH
LUK 0921 0922 0923 0924 0925 CLE 0921 0922 0923 0924 0925
MIN 66 61 59 57 56 MIN 58 56 56 55 56
%>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 0
%>70 11 4 2 1 0 %>70 0 0 0 0 1
COLUMBIA_SC COLUMBUS_OH
CAE 0921 0922 0923 0924 0925 TZR 0921 0922 0923 0924 0925
MIN 72 72 70 67 66 MIN 61 59 58 55 54
%>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 13 11 9 3 2 %>75 0 0 0 0 0
%>70 75 74 55 25 17 %>70 1 1 1 0 0
DAYTON_OH DETROIT_MI
MGY 0921 0922 0923 0924 0925 DET 0921 0922 0923 0924 0925
MIN 63 59 58 55 55 MIN 53 51 53 53 54
%>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 0
%>70 2 1 1 1 0 %>70 0 0 0 0 0
EVANSVILLE_IN GRAND_RAPIDS_MI
EVV 0921 0922 0923 0924 0925 GRR 0921 0922 0923 0924 0925
MIN 71 65 59 57 58 MIN 47 44 46 47 47
%>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 13 1 0 0 0 %>75 0 0 0 0 0
%>70 68 13 3 2 2 %>70 0 0 0 0 0
GREENSBORO_NC HUNTSVILLE_AL
GSO 0921 0922 0923 0924 0925 HSV 0921 0922 0923 0924 0925
MIN 69 67 63 60 58 MIN 72 71 68 63 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 2 0 0 0 0
%>75 3 2 1 0 0 %>75 23 11 3 1 0
%>70 37 23 8 1 1 %>70 74 66 31 8 3
INDIANAPOLIS_IN KNOXVILLE_TN
IND 0921 0922 0923 0924 0925 TYS 0921 0922 0923 0924 0925
MIN 63 58 55 54 55 MIN 70 69 67 63 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 0 0 0 %>75 2 0 0 0 0
%>70 2 0 0 0 0 %>70 47 31 11 3 1
LEXINGTON_KY LOUISVILLE_KY
LEX 0921 0922 0923 0924 0925 SDF 0921 0922 0923 0924 0925
MIN 68 64 60 57 56 MIN 70 65 60 58 58
%>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 2 1 0 0 0 %>75 4 2 0 0 0
%>70 31 12 4 2 1 %>70 53 16 3 2 1
MEMPHIS_TN MIAMI_FL
MEM 0921 0922 0923 0924 0925 MIA 0921 0922 0923 0924 0925
MIN 76 73 67 64 65 MIN 79 80 81 81 80
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 0 0 %>95 0 1 2 1 1
%>90 0 0 0 0 0 %>90 3 6 9 7 6
%>85 2 0 0 0 0 %>85 14 22 28 25 21
%>80 19 4 1 0 0 %>80 41 51 57 56 51
%>75 64 32 6 4 2 %>75 75 81 83 85 82
%>70 93 78 27 17 15 %>70 95 96 96 97 97
MILWAUKEE_WI MOBILE_AL
MKE 0921 0922 0923 0924 0925 MOB 0921 0922 0923 0924 0925
MIN 53 51 51 51 53 MIN 75 75 75 73 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 2 3 1 0 0
%>80 0 0 0 0 0 %>80 13 17 12 4 2
%>75 0 0 0 0 0 %>75 50 50 49 32 16
%>70 0 0 0 0 0 %>70 89 84 88 79 53
NASHVILLE_TN NEW_YORK_CITY_NY
BNA 0921 0922 0923 0924 0925 NYC 0921 0922 0923 0924 0925
MIN 74 71 65 61 61 MIN 62 57 54 55 56
%>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 4 1 0 0 0 %>80 0 0 0 0 0
%>75 35 12 2 1 0 %>75 0 0 0 0 0
%>70 84 58 16 7 4 %>70 2 0 0 0 0
NORFOLK_VA ORLANDO_FL
ORF 0921 0922 0923 0924 0925 ORL 0921 0922 0923 0924 0925
MIN 74 73 71 70 67 MIN 75 75 76 76 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 1 1 1 1 0 %>80 2 3 7 7 7
%>75 45 34 16 11 6 %>75 47 49 63 68 63
%>70 83 83 64 48 29 %>70 97 97 98 99 98
PHILADELPHIA_PA PITTSBURGH_PA
PHL 0921 0922 0923 0924 0925 PIT 0921 0922 0923 0924 0925
MIN 65 60 55 56 56 MIN 60 58 55 54 53
%>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 1 0 0 0 0 %>75 0 0 0 0 0
%>70 13 0 0 0 0 %>70 1 1 0 0 0
PORTLAND_ME PROVIDENCE_RI
PWM 0921 0922 0923 0924 0925 PVD 0921 0922 0923 0924 0925
MIN 49 45 44 44 47 MIN 56 52 50 51 52
%>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 0
%>70 0 0 0 0 0 %>70 0 0 0 0 0
RALEIGH-DURHAM_NC RICHMOND_VA
RDU 0921 0922 0923 0924 0925 RIC 0921 0922 0923 0924 0925
MIN 71 70 66 63 61 MIN 70 67 63 61 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 0 %>80 0 0 0 0 0
%>75 8 4 2 0 0 %>75 5 1 0 0 0
%>70 58 45 17 6 3 %>70 49 23 5 3 2
SAVANNAH_GA TALLAHASSEE_FL
SAV 0921 0922 0923 0924 0925 TLH 0921 0922 0923 0924 0925
MIN 74 74 74 72 71 MIN 74 74 74 74 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 4 5 3 3 3 %>80 1 1 1 2 2
%>75 40 40 35 23 18 %>75 33 30 36 33 20
%>70 94 93 92 69 56 %>70 92 91 94 90 68
TAMPA_FL WASHINGTON_DC
TPA 0921 0922 0923 0924 0925 DCA 0921 0922 0923 0924 0925
MIN 76 77 78 77 77 MIN 68 64 58 58 57
%>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 0 0 0
%>85 2 4 6 3 3 %>85 0 0 0 0 0
%>80 17 22 29 25 23 %>80 0 0 0 0 0
%>75 58 63 70 73 69 %>75 5 0 0 0 0
%>70 93 94 95 98 97 %>70 32 7 0 1 1
URL IS WWW.WPC.NCEP.NOAA.GOV
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