Heat Index Forecast Tables
Issued by NWS
Issued by NWS
821
FMUS24 KWNH 181819
PRBWHL
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 WESTERN US CITIES - DAYS 3 TO 7 FROM FRI SEP 18 2026
ABILENE_TX ALBUQUERQUE_NM
ABI 0921 0922 0923 0924 0925 ABQ 0921 0922 0923 0924 0925
MIN 72 71 68 69 69 MIN 52 55 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 1 0 1 2 2 %>80 0 0 0 0 0
%>75 17 9 9 13 13 %>75 0 0 0 0 0
%>70 69 58 37 45 45 %>70 0 0 0 0 0
AMARILLO_TX AUSTIN_TX
AMA 0921 0922 0923 0924 0925 AUS 0921 0922 0923 0924 0925
MIN 62 60 58 59 61 MIN 77 77 77 76 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 0 1 2 1 1
%>80 0 0 0 0 0 %>80 17 17 19 16 11
%>75 0 0 0 0 0 %>75 80 74 65 61 44
%>70 1 2 2 3 4 %>70 99 99 95 93 82
BATON_ROUGE_LA BISMARCK_ND
BTR 0921 0922 0923 0924 0925 BIS 0921 0922 0923 0924 0925
MIN 76 76 76 73 70 MIN 50 49 51 52 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 1 1 0 0 %>85 0 0 0 0 0
%>80 12 13 14 5 2 %>80 0 0 0 0 0
%>75 63 62 59 35 17 %>75 0 0 0 0 0
%>70 96 95 93 79 54 %>70 0 0 0 0 1
BROWNSVILLE_TX CORPUS_CHRISTI_TX
BRO 0921 0922 0923 0924 0925 CRP 0921 0922 0923 0924 0925
MIN 84 84 85 85 84 MIN 83 83 83 84 82
%>100 0 0 0 0 0 %>100 1 1 1 1 0
%>95 0 0 0 1 0 %>95 4 4 4 4 2
%>90 4 3 7 9 7 %>90 12 11 12 15 8
%>85 43 39 44 49 40 %>85 33 31 34 42 29
%>80 90 90 90 91 83 %>80 71 71 71 76 63
%>75 99 100 100 100 98 %>75 94 95 93 94 89
%>70 100 100 100 100 100 %>70 99 100 99 99 98
DALLAS_TX DENVER_CO
DFW 0921 0922 0923 0924 0925 DEN 0921 0922 0923 0924 0925
MIN 78 76 73 73 73 MIN 48 51 52 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 1 0 %>90 0 0 0 0 0
%>85 4 2 3 4 2 %>85 0 0 0 0 0
%>80 33 19 13 15 13 %>80 0 0 0 0 0
%>75 81 59 38 40 39 %>75 0 0 0 0 0
%>70 99 91 70 70 72 %>70 0 0 0 0 0
DES_MOINES_IA EL_PASO_TX
DSM 0921 0922 0923 0924 0925 ELP 0921 0922 0923 0924 0925
MIN 58 52 48 52 55 MIN 64 68 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 0 0 0 0 0 %>85 0 0 0 0 0
%>80 0 0 0 0 0 %>80 1 0 0 0 0
%>75 0 0 0 0 0 %>75 4 6 1 1 1
%>70 0 0 0 0 1 %>70 18 31 11 7 10
FRESNO_CA GOODLAND_KS
FAT 0921 0922 0923 0924 0925 GLD 0921 0922 0923 0924 0925
MIN 60 60 61 63 63 MIN 52 52 55 56 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 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 1 %>75 0 0 0 0 0
%>70 0 0 1 4 9 %>70 0 0 0 1 1
GREAT_FALLS_MT HOUSTON_TX
GTF 0921 0922 0923 0924 0925 HOU 0921 0922 0923 0924 0925
MIN 46 48 47 47 49 MIN 80 80 81 80 77
%>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 1 4 2 1
%>85 0 0 0 0 0 %>85 12 12 22 13 7
%>80 0 0 0 0 0 %>80 51 49 60 46 27
%>75 0 0 0 0 0 %>75 93 91 91 82 63
%>70 0 0 0 0 0 %>70 100 100 99 97 89
JACKSON_MS KANSAS_CITY_MO
JAN 0921 0922 0923 0924 0925 MCI 0921 0922 0923 0924 0925
MIN 75 75 72 69 67 MIN 62 55 51 53 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 0 0 0 %>90 0 0 0 0 0
%>85 0 0 0 0 0 %>85 0 0 0 0 0
%>80 6 6 1 1 0 %>80 0 0 0 0 0
%>75 55 45 23 10 5 %>75 1 0 0 0 0
%>70 97 91 75 39 26 %>70 6 0 0 0 2
LAS_VEGAS_NV LITTLE_ROCK_AR
LAS 0921 0922 0923 0924 0925 LIT 0921 0922 0923 0924 0925
MIN 70 68 68 71 71 MIN 74 71 65 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 1 1 0 1 1 %>90 0 0 0 0 0
%>85 3 3 2 4 4 %>85 0 0 0 0 0
%>80 10 8 7 12 12 %>80 6 1 0 0 0
%>75 25 19 19 28 30 %>75 42 17 4 3 3
%>70 48 38 39 52 56 %>70 87 64 20 14 16
LOS_ANGELES_CA MIDLAND_TX
LAX 0921 0922 0923 0924 0925 MAF 0921 0922 0923 0924 0925
MIN 66 65 66 68 68 MIN 71 70 67 68 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 0 %>80 0 0 0 0 0
%>75 0 0 0 0 1 %>75 8 5 2 3 5
%>70 2 1 8 22 30 %>70 56 49 23 27 31
MINNEAPOLIS_MN NEW_ORLEANS_LA
MSP 0921 0922 0923 0924 0925 MSY 0921 0922 0923 0924 0925
MIN 50 45 44 48 52 MIN 81 81 82 79 76
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 0 0 %>95 1 1 1 0 0
%>90 0 0 0 0 0 %>90 4 6 7 1 0
%>85 0 0 0 0 0 %>85 19 24 27 8 3
%>80 0 0 0 0 0 %>80 55 57 62 40 21
%>75 0 0 0 0 0 %>75 90 88 90 81 62
%>70 0 0 0 0 0 %>70 99 98 99 97 92
NORTH_PLATTE_NE OKLAHOMA_CITY_OK
LBF 0921 0922 0923 0924 0925 OKC 0921 0922 0923 0924 0925
MIN 52 49 53 54 56 MIN 68 64 61 63 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 1 1
%>75 0 0 0 0 0 %>75 6 1 1 4 7
%>70 0 0 0 0 1 %>70 35 11 6 15 23
OMAHA_NE PENDLETON_OR
OMA 0921 0922 0923 0924 0925 PDT 0921 0922 0923 0924 0925
MIN 58 52 50 54 57 MIN 51 51 49 48 49
%>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 1 %>70 0 0 0 0 0
PHOENIX_AZ PORTLAND_OR
PHX 0921 0922 0923 0924 0925 PDX 0921 0922 0923 0924 0925
MIN 78 77 79 82 82 MIN 54 54 51 52 53
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 1 0 0 1 2 %>95 0 0 0 0 0
%>90 4 2 3 7 10 %>90 0 0 0 0 0
%>85 15 9 14 27 31 %>85 0 0 0 0 0
%>80 36 31 42 60 64 %>80 0 0 0 0 0
%>75 64 64 76 87 88 %>75 0 0 0 0 0
%>70 86 89 94 98 98 %>70 0 0 0 0 0
RAPID_CITY_SD SACRAMENTO_CA
RAP 0921 0922 0923 0924 0925 SAC 0921 0922 0923 0924 0925
MIN 49 49 52 51 52 MIN 56 55 57 59 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 0 0 0 0 0 %>75 0 0 0 0 1
%>70 0 0 0 0 1 %>70 0 0 0 3 4
SAINT_LOUIS_MO SALT_LAKE_CITY_UT
STL 0921 0922 0923 0924 0925 SLC 0921 0922 0923 0924 0925
MIN 69 61 55 55 58 MIN 48 53 51 52 55
%>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 4 0 0 0 0 %>75 0 0 0 0 0
%>70 38 1 0 0 1 %>70 0 0 0 0 0
SAN_ANTONIO_TX SAN_DIEGO_CA
SAT 0921 0922 0923 0924 0925 SAN 0921 0922 0923 0924 0925
MIN 77 77 76 76 75 MIN 66 65 67 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 1 1 1 1 1 %>85 0 0 0 0 0
%>80 17 19 17 18 13 %>80 0 0 0 0 0
%>75 69 68 65 64 51 %>75 0 0 0 0 1
%>70 98 97 96 95 88 %>70 3 4 14 24 38
SAN_FRANCISCO_CA SEATTLE_WA
SFO 0921 0922 0923 0924 0925 SEA 0921 0922 0923 0924 0925
MIN 57 58 58 59 59 MIN 52 53 51 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
SHREVEPORT_LA SIOUX_FALLS_SD
SHV 0921 0922 0923 0924 0925 FSD 0921 0922 0923 0924 0925
MIN 76 75 73 70 68 MIN 52 46 45 50 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 10 9 7 4 2 %>80 0 0 0 0 0
%>75 68 56 35 19 13 %>75 0 0 0 0 0
%>70 98 95 76 48 39 %>70 0 0 0 0 0
SPRINGFIELD_MO TUCSON_AZ
SGF 0921 0922 0923 0924 0925 TUS 0921 0922 0923 0924 0925
MIN 69 61 55 56 59 MIN 69 68 69 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 1
%>80 0 0 0 0 0 %>80 0 0 1 2 5
%>75 3 0 0 0 0 %>75 7 5 9 17 25
%>70 35 3 0 1 4 %>70 37 34 43 54 61
TULSA_OK WICHITA_KS
TUL 0921 0922 0923 0924 0925 ICT 0921 0922 0923 0924 0925
MIN 69 64 61 62 64 MIN 63 57 55 59 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 1 0 0 0 1 %>80 0 0 0 0 0
%>75 9 1 1 2 4 %>75 1 0 0 0 1
%>70 44 9 5 10 17 %>70 8 1 0 3 9
YUMA_AZ
YUM 0921 0922 0923 0924 0925
MIN 76 72 75 78 80
%>100 0 0 0 0 0
%>95 0 0 0 0 0
%>90 0 0 0 1 3
%>85 3 0 2 7 19
%>80 19 3 14 32 54
%>75 56 23 46 71 85
%>70 87 63 82 94 98
URL IS WWW.WPC.NCEP.NOAA.GOV
$$