Heat Index Forecast Tables
Issued by NWS
Issued by NWS
352
FMUS24 KWNH 210745
PRBWHL
DAYS 3--7 HEAT INDEX FORECAST TABLES
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
0742 UTC FRI AUG 21 2026
MINIMUM HEAT INDEX (DEG F) AND MINIMUM HI PROB (%) FRCSTS
AT WESTERN US CITIES - DAYS 3 TO 7 FROM FRI AUG 21 2026
ABILENE_TX ALBUQUERQUE_NM
ABI 0824 0825 0826 0827 0828 ABQ 0824 0825 0826 0827 0828
MIN 80 79 79 78 77 MIN 65 66 66 65 66
%>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 2 4 2 1 %>85 0 0 0 0 0
%>80 52 43 40 26 22 %>80 0 1 0 0 1
%>75 92 91 86 78 71 %>75 4 5 4 4 6
%>70 99 99 99 97 95 %>70 21 23 22 19 24
AMARILLO_TX AUSTIN_TX
AMA 0824 0825 0826 0827 0828 AUS 0824 0825 0826 0827 0828
MIN 74 73 70 69 70 MIN 79 78 78 78 78
%>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 1 1 1 3 2
%>80 8 3 2 1 4 %>80 41 21 25 32 29
%>75 43 30 15 11 19 %>75 97 85 83 86 80
%>70 86 81 52 41 49 %>70 100 99 99 99 98
BATON_ROUGE_LA BISMARCK_ND
BTR 0824 0825 0826 0827 0828 BIS 0824 0825 0826 0827 0828
MIN 80 77 77 77 76 MIN 61 59 53 54 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 2 2 1 1 0 %>90 0 0 0 0 0
%>85 14 10 8 7 4 %>85 0 0 0 0 0
%>80 49 33 30 28 23 %>80 0 0 0 0 0
%>75 86 65 66 61 59 %>75 0 0 0 0 1
%>70 99 89 91 87 88 %>70 3 1 0 1 3
BROWNSVILLE_TX CORPUS_CHRISTI_TX
BRO 0824 0825 0826 0827 0828 CRP 0824 0825 0826 0827 0828
MIN 84 85 85 85 86 MIN 81 81 81 81 81
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 0 0 %>95 1 1 1 1 1
%>90 4 7 10 8 13 %>90 6 7 7 7 10
%>85 43 49 56 55 62 %>85 21 25 25 25 29
%>80 91 90 92 93 94 %>80 55 53 55 54 58
%>75 100 99 99 99 99 %>75 88 81 82 82 82
%>70 100 100 100 100 100 %>70 99 95 96 96 95
DALLAS_TX DENVER_CO
DFW 0824 0825 0826 0827 0828 DEN 0824 0825 0826 0827 0828
MIN 84 84 85 82 81 MIN 63 60 59 59 61
%>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 5 2 5 4 5 %>90 0 0 0 0 0
%>85 42 42 45 28 24 %>85 0 0 0 0 0
%>80 89 93 91 71 60 %>80 0 0 0 0 0
%>75 99 100 99 93 87 %>75 1 0 0 0 1
%>70 100 100 100 99 97 %>70 7 2 1 2 5
DES_MOINES_IA EL_PASO_TX
DSM 0824 0825 0826 0827 0828 ELP 0824 0825 0826 0827 0828
MIN 62 64 66 63 65 MIN 73 73 74 75 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 1 2 3 2 3
%>80 0 0 0 0 0 %>80 7 12 15 14 16
%>75 0 0 1 1 3 %>75 33 38 44 46 47
%>70 1 4 15 8 16 %>70 72 71 76 82 81
FRESNO_CA GOODLAND_KS
FAT 0824 0825 0826 0827 0828 GLD 0824 0825 0826 0827 0828
MIN 68 67 66 66 66 MIN 65 65 61 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 1 0 0 0 0 %>80 1 0 0 0 1
%>75 5 2 2 3 4 %>75 5 3 2 3 4
%>70 34 24 20 20 23 %>70 19 17 10 11 14
GREAT_FALLS_MT HOUSTON_TX
GTF 0824 0825 0826 0827 0828 HOU 0824 0825 0826 0827 0828
MIN 52 51 53 53 51 MIN 83 81 81 81 80
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 0 0 %>95 1 0 0 0 0
%>90 0 0 0 0 0 %>90 8 2 3 4 3
%>85 0 0 0 0 0 %>85 35 20 23 25 19
%>80 0 0 0 0 0 %>80 77 60 61 60 54
%>75 0 0 0 0 0 %>75 96 87 87 85 83
%>70 0 0 0 0 0 %>70 100 97 97 96 96
JACKSON_MS KANSAS_CITY_MO
JAN 0824 0825 0826 0827 0828 MCI 0824 0825 0826 0827 0828
MIN 75 74 76 74 73 MIN 67 69 69 66 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 2 4 4 1 %>85 0 0 0 0 0
%>80 9 14 20 17 8 %>80 0 0 0 0 2
%>75 54 45 55 45 34 %>75 1 7 6 4 13
%>70 94 80 86 76 71 %>70 17 38 41 22 40
LAS_VEGAS_NV LITTLE_ROCK_AR
LAS 0824 0825 0826 0827 0828 LIT 0824 0825 0826 0827 0828
MIN 81 80 80 80 80 MIN 74 75 76 74 74
%>100 0 0 0 0 1 %>100 0 0 0 0 0
%>95 2 1 2 3 3 %>95 0 0 0 0 0
%>90 8 7 8 10 11 %>90 0 1 1 0 0
%>85 26 23 25 26 27 %>85 0 4 6 2 2
%>80 55 50 51 51 51 %>80 7 20 25 13 13
%>75 81 77 78 76 75 %>75 37 51 60 45 41
%>70 95 93 93 91 91 %>70 79 81 88 81 75
LOS_ANGELES_CA MIDLAND_TX
LAX 0824 0825 0826 0827 0828 MAF 0824 0825 0826 0827 0828
MIN 70 71 72 72 72 MIN 75 75 75 75 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 2 5 4 3 %>80 7 5 9 8 6
%>75 9 19 28 23 23 %>75 49 49 51 49 45
%>70 50 62 69 63 65 %>70 92 94 91 91 90
MINNEAPOLIS_MN NEW_ORLEANS_LA
MSP 0824 0825 0826 0827 0828 MSY 0824 0825 0826 0827 0828
MIN 59 64 65 61 62 MIN 88 83 82 80 80
%>100 0 0 0 0 0 %>100 2 0 0 0 0
%>95 0 0 0 0 0 %>95 11 3 2 1 1
%>90 0 0 0 0 0 %>90 35 14 8 6 6
%>85 0 0 0 0 0 %>85 67 41 30 23 23
%>80 0 0 0 0 0 %>80 90 71 62 53 52
%>75 0 0 0 0 3 %>75 98 90 85 80 80
%>70 0 4 5 3 11 %>70 100 97 96 94 94
NORTH_PLATTE_NE OKLAHOMA_CITY_OK
LBF 0824 0825 0826 0827 0828 OKC 0824 0825 0826 0827 0828
MIN 65 64 60 61 62 MIN 78 79 77 74 75
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 0 0 %>95 1 0 0 0 0
%>90 0 0 0 0 0 %>90 4 1 1 0 1
%>85 0 0 0 0 0 %>85 15 13 5 2 7
%>80 0 0 0 0 0 %>80 41 48 26 14 23
%>75 1 1 0 1 2 %>75 70 82 63 44 51
%>70 11 11 3 7 11 %>70 90 96 90 77 79
OMAHA_NE PENDLETON_OR
OMA 0824 0825 0826 0827 0828 PDT 0824 0825 0826 0827 0828
MIN 64 66 66 64 66 MIN 52 55 58 53 51
%>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 1 1 6 %>75 0 1 1 0 0
%>70 4 15 15 8 24 %>70 0 3 4 2 1
PHOENIX_AZ PORTLAND_OR
PHX 0824 0825 0826 0827 0828 PDX 0824 0825 0826 0827 0828
MIN 88 88 88 88 88 MIN 56 59 56 54 53
%>100 2 1 2 2 4 %>100 0 0 0 0 0
%>95 10 8 13 12 16 %>95 0 0 0 0 0
%>90 34 34 38 35 39 %>90 0 0 0 0 0
%>85 69 72 71 66 68 %>85 0 0 0 0 0
%>80 92 94 92 89 89 %>80 0 0 0 0 0
%>75 99 99 99 98 98 %>75 0 0 0 0 0
%>70 100 100 100 100 100 %>70 0 0 0 0 0
RAPID_CITY_SD SACRAMENTO_CA
RAP 0824 0825 0826 0827 0828 SAC 0824 0825 0826 0827 0828
MIN 65 62 57 60 59 MIN 59 58 58 59 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 2 1 0 1 2 %>75 0 0 0 0 0
%>70 13 5 1 6 7 %>70 0 0 0 0 1
SAINT_LOUIS_MO SALT_LAKE_CITY_UT
STL 0824 0825 0826 0827 0828 SLC 0824 0825 0826 0827 0828
MIN 64 66 69 68 68 MIN 66 65 65 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 1 %>80 0 0 0 0 0
%>75 0 0 7 4 6 %>75 2 1 0 1 2
%>70 4 12 44 31 32 %>70 19 12 10 14 17
SAN_ANTONIO_TX SAN_DIEGO_CA
SAT 0824 0825 0826 0827 0828 SAN 0824 0825 0826 0827 0828
MIN 78 77 77 78 78 MIN 71 72 72 72 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 1 2 2 3 3 %>85 0 0 0 0 0
%>80 22 21 21 29 30 %>80 0 0 1 2 2
%>75 81 68 71 79 78 %>75 7 13 21 19 19
%>70 100 96 97 98 98 %>70 74 78 78 73 73
SAN_FRANCISCO_CA SEATTLE_WA
SFO 0824 0825 0826 0827 0828 SEA 0824 0825 0826 0827 0828
MIN 57 57 56 57 57 MIN 55 56 56 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 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 0824 0825 0826 0827 0828 FSD 0824 0825 0826 0827 0828
MIN 79 79 79 77 76 MIN 61 63 60 57 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 1 2 2 1 %>90 0 0 0 0 0
%>85 8 8 12 10 6 %>85 0 0 0 0 0
%>80 44 38 44 31 24 %>80 0 0 0 0 1
%>75 86 79 80 62 56 %>75 0 0 0 0 3
%>70 99 97 97 86 84 %>70 1 4 1 1 10
SPRINGFIELD_MO TUCSON_AZ
SGF 0824 0825 0826 0827 0828 TUS 0824 0825 0826 0827 0828
MIN 69 70 71 68 68 MIN 78 78 80 80 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 1 1 2 2 2
%>85 0 0 0 0 0 %>85 10 11 15 15 16
%>80 0 3 2 1 2 %>80 37 39 47 50 50
%>75 7 18 17 7 12 %>75 72 74 80 84 84
%>70 37 53 56 33 39 %>70 93 94 96 98 97
TULSA_OK WICHITA_KS
TUL 0824 0825 0826 0827 0828 ICT 0824 0825 0826 0827 0828
MIN 77 78 76 74 75 MIN 72 73 71 70 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 1 1 0 0 1 %>90 0 0 0 0 0
%>85 7 8 4 1 4 %>85 2 1 0 0 2
%>80 28 34 24 10 20 %>80 9 6 5 3 9
%>75 62 72 62 41 49 %>75 30 31 24 17 30
%>70 88 94 90 79 79 %>70 60 70 61 50 61
YUMA_AZ
YUM 0824 0825 0826 0827 0828
MIN 92 89 89 87 88
%>100 1 0 0 0 1
%>95 17 6 6 4 8
%>90 66 43 39 28 33
%>85 96 88 85 71 71
%>80 100 99 99 95 94
%>75 100 100 100 100 99
%>70 100 100 100 100 100
URL IS WWW.WPC.NCEP.NOAA.GOV
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