Heat Index Forecast Tables
Issued by NWS
Issued by NWS
059
FMUS24 KWNH 211820
PRBWHL
DAYS 3--7 HEAT INDEX FORECAST TABLES
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1818 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 81 79 79 78 77 MIN 65 66 66 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 3 2 4 2 2 %>85 0 0 0 0 0
%>80 65 43 43 30 26 %>80 0 1 0 0 1
%>75 97 91 89 81 75 %>75 4 5 4 3 5
%>70 100 99 99 98 96 %>70 20 22 21 18 22
AMARILLO_TX AUSTIN_TX
AMA 0824 0825 0826 0827 0828 AUS 0824 0825 0826 0827 0828
MIN 75 74 70 70 71 MIN 80 79 79 80 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 0 0 0 0 %>90 0 0 0 0 0
%>85 0 0 0 0 0 %>85 7 1 2 7 4
%>80 6 2 2 1 3 %>80 48 36 41 50 38
%>75 50 33 15 11 21 %>75 97 94 95 93 87
%>70 94 88 53 51 59 %>70 100 100 100 100 99
BATON_ROUGE_LA BISMARCK_ND
BTR 0824 0825 0826 0827 0828 BIS 0824 0825 0826 0827 0828
MIN 80 78 79 78 78 MIN 62 58 54 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 2 1 1 1 1 %>90 0 0 0 0 0
%>85 13 10 9 9 7 %>85 0 0 0 0 0
%>80 47 38 39 36 31 %>80 0 0 0 0 0
%>75 85 76 78 73 70 %>75 0 0 0 0 1
%>70 99 96 96 94 94 %>70 3 1 0 1 4
BROWNSVILLE_TX CORPUS_CHRISTI_TX
BRO 0824 0825 0826 0827 0828 CRP 0824 0825 0826 0827 0828
MIN 85 86 87 86 87 MIN 81 82 83 83 83
%>100 0 0 0 0 0 %>100 0 0 0 0 1
%>95 0 0 0 0 1 %>95 3 2 3 2 4
%>90 4 8 16 13 19 %>90 8 10 11 11 14
%>85 46 61 72 65 73 %>85 24 30 34 34 38
%>80 92 97 98 96 98 %>80 57 65 70 67 71
%>75 100 100 100 100 100 %>75 89 92 93 91 92
%>70 100 100 100 100 100 %>70 99 99 99 98 99
DALLAS_TX DENVER_CO
DFW 0824 0825 0826 0827 0828 DEN 0824 0825 0826 0827 0828
MIN 86 86 85 84 83 MIN 64 61 60 60 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 4 3 6 4 4 %>90 0 0 0 0 0
%>85 74 62 55 41 35 %>85 0 0 0 0 0
%>80 100 99 96 88 82 %>80 0 0 0 0 0
%>75 100 100 100 99 97 %>75 1 0 0 0 1
%>70 100 100 100 100 99 %>70 8 2 0 1 5
DES_MOINES_IA EL_PASO_TX
DSM 0824 0825 0826 0827 0828 ELP 0824 0825 0826 0827 0828
MIN 64 65 68 65 66 MIN 73 73 74 74 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 1 2 2 1 2
%>80 0 0 0 0 1 %>80 7 11 13 12 13
%>75 0 0 1 2 5 %>75 34 37 41 43 44
%>70 4 10 22 15 23 %>70 75 71 75 79 78
FRESNO_CA GOODLAND_KS
FAT 0824 0825 0826 0827 0828 GLD 0824 0825 0826 0827 0828
MIN 69 68 68 66 66 MIN 66 65 63 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 0 0 0 0 1
%>75 5 3 3 4 4 %>75 3 3 1 2 5
%>70 47 35 31 24 24 %>70 20 17 8 10 16
GREAT_FALLS_MT HOUSTON_TX
GTF 0824 0825 0826 0827 0828 HOU 0824 0825 0826 0827 0828
MIN 52 52 55 54 50 MIN 83 84 84 84 83
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 0 0 %>95 1 1 1 1 0
%>90 0 0 0 0 0 %>90 10 11 10 11 6
%>85 0 0 0 0 0 %>85 34 40 41 45 33
%>80 0 0 0 0 0 %>80 76 77 78 79 72
%>75 0 0 0 0 0 %>75 97 95 95 94 93
%>70 0 0 0 1 0 %>70 100 99 99 99 99
JACKSON_MS KANSAS_CITY_MO
JAN 0824 0825 0826 0827 0828 MCI 0824 0825 0826 0827 0828
MIN 76 76 77 76 74 MIN 67 69 70 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 2 5 5 1 %>85 0 0 0 0 0
%>80 15 16 28 22 10 %>80 0 0 0 0 2
%>75 57 56 70 57 44 %>75 0 4 7 5 15
%>70 92 90 95 86 82 %>70 16 39 51 31 46
LAS_VEGAS_NV LITTLE_ROCK_AR
LAS 0824 0825 0826 0827 0828 LIT 0824 0825 0826 0827 0828
MIN 81 81 81 80 80 MIN 74 75 76 74 74
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 2 2 2 2 2 %>95 0 0 0 0 0
%>90 10 9 9 9 8 %>90 0 0 1 0 0
%>85 28 26 27 25 23 %>85 0 4 6 2 2
%>80 56 53 53 50 48 %>80 7 19 26 13 13
%>75 82 78 79 75 73 %>75 38 51 60 44 42
%>70 96 94 94 91 90 %>70 80 82 88 79 77
LOS_ANGELES_CA MIDLAND_TX
LAX 0824 0825 0826 0827 0828 MAF 0824 0825 0826 0827 0828
MIN 70 71 73 72 71 MIN 76 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 1 0 0 %>85 0 0 0 0 0
%>80 1 2 6 4 2 %>80 6 5 9 8 8
%>75 11 19 30 24 19 %>75 60 49 51 48 46
%>70 55 65 70 63 60 %>70 98 95 92 90 88
MINNEAPOLIS_MN NEW_ORLEANS_LA
MSP 0824 0825 0826 0827 0828 MSY 0824 0825 0826 0827 0828
MIN 57 64 64 61 62 MIN 88 86 85 84 83
%>100 0 0 0 0 0 %>100 3 2 2 1 1
%>95 0 0 0 0 0 %>95 14 9 7 5 4
%>90 0 0 0 0 0 %>90 39 28 23 17 14
%>85 0 0 0 0 0 %>85 70 58 50 41 36
%>80 0 0 0 0 0 %>80 91 84 79 71 66
%>75 0 0 0 0 2 %>75 98 96 95 91 88
%>70 0 4 4 2 10 %>70 100 99 99 98 98
NORTH_PLATTE_NE OKLAHOMA_CITY_OK
LBF 0824 0825 0826 0827 0828 OKC 0824 0825 0826 0827 0828
MIN 66 66 62 62 63 MIN 81 80 77 75 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 2 2 1 0 1
%>85 0 0 0 0 0 %>85 17 15 6 4 6
%>80 0 0 0 0 0 %>80 56 52 28 18 25
%>75 0 1 0 1 3 %>75 87 84 65 48 57
%>70 11 13 4 6 13 %>70 98 97 91 78 84
OMAHA_NE PENDLETON_OR
OMA 0824 0825 0826 0827 0828 PDT 0824 0825 0826 0827 0828
MIN 66 68 68 66 67 MIN 53 56 59 52 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 1 2 3 2 6 %>75 0 1 1 0 0
%>70 13 26 27 18 28 %>70 0 3 4 1 0
PHOENIX_AZ PORTLAND_OR
PHX 0824 0825 0826 0827 0828 PDX 0824 0825 0826 0827 0828
MIN 88 88 88 87 87 MIN 56 60 57 54 53
%>100 2 1 2 2 2 %>100 0 0 0 0 0
%>95 13 10 11 10 11 %>95 0 0 0 0 0
%>90 39 37 36 32 33 %>90 0 0 0 0 0
%>85 72 74 70 64 64 %>85 0 0 0 0 0
%>80 93 95 92 88 87 %>80 0 0 0 0 0
%>75 99 100 99 98 97 %>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 58 60 60 MIN 60 58 58 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 3 0 0 0 2 %>75 0 0 0 0 0
%>70 17 3 1 4 8 %>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 67 70 69 70 MIN 66 66 67 66 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 11 %>75 3 2 2 2 2
%>70 2 15 47 40 47 %>70 23 20 23 21 15
SAN_ANTONIO_TX SAN_DIEGO_CA
SAT 0824 0825 0826 0827 0828 SAN 0824 0825 0826 0827 0828
MIN 77 78 78 79 79 MIN 72 72 73 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 3 4 6 %>85 0 0 0 0 0
%>80 19 26 32 35 36 %>80 0 0 1 1 1
%>75 81 78 84 83 81 %>75 12 14 20 19 16
%>70 100 99 99 99 98 %>70 80 79 81 75 71
SAN_FRANCISCO_CA SEATTLE_WA
SFO 0824 0825 0826 0827 0828 SEA 0824 0825 0826 0827 0828
MIN 57 57 56 57 57 MIN 56 57 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 80 81 83 79 77 MIN 63 65 62 59 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 1 4 2 1 %>90 0 0 0 0 0
%>85 10 15 29 14 7 %>85 0 0 0 0 0
%>80 52 62 75 43 31 %>80 0 0 0 0 0
%>75 91 94 96 77 68 %>75 0 0 0 0 2
%>70 100 100 100 95 92 %>70 1 4 3 2 10
SPRINGFIELD_MO TUCSON_AZ
SGF 0824 0825 0826 0827 0828 TUS 0824 0825 0826 0827 0828
MIN 69 71 71 70 71 MIN 78 79 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 2 2 2 2
%>85 0 0 0 0 0 %>85 10 11 15 14 15
%>80 0 2 3 1 3 %>80 37 40 47 48 47
%>75 3 20 22 11 19 %>75 73 76 81 83 81
%>70 41 63 62 46 54 %>70 94 95 96 97 97
TULSA_OK WICHITA_KS
TUL 0824 0825 0826 0827 0828 ICT 0824 0825 0826 0827 0828
MIN 77 78 77 75 76 MIN 72 73 72 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 1 %>90 0 0 0 0 0
%>85 4 7 3 3 5 %>85 1 0 0 0 1
%>80 26 36 23 16 23 %>80 7 5 4 3 8
%>75 68 78 64 48 57 %>75 29 30 26 20 31
%>70 94 97 93 82 86 %>70 64 73 66 57 66
YUMA_AZ
YUM 0824 0825 0826 0827 0828
MIN 92 90 88 88 88
%>100 2 0 0 0 1
%>95 21 6 3 3 8
%>90 74 44 31 27 34
%>85 98 91 83 73 72
%>80 100 100 99 97 94
%>75 100 100 100 100 99
%>70 100 100 100 100 100
URL IS WWW.WPC.NCEP.NOAA.GOV
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