42.920°N, 112.572°W · station PIHthr · 88 years of record
45°F
COLDEST SEP 8 SINCE 2025
forecast low · Sep 8
7-Day Forecast
NWS NDFD forecast low temperature for Pocatello.
This Day in History
Every year's low on each of the next 7 forecast dates at Pocatello — toggle a day below. The forecast line shows where it lands; the ringed bar is the coldest on record.
Ranks
#72 / 87
coldest Sep 2 in 87 yrs of record
Coldest Sep 2 ever
31°F
set in 2006
Mildest Sep 2 ever
68°F
set in 1945
Forecast low 54°F — 72nd coldest Sep 2 of 87 years · record 31°F (2006) · coldest since 2025.
Ranks
#43 / 87
coldest Sep 3 in 87 yrs of record
Coldest Sep 3 ever
32°F
set in 2008
Mildest Sep 3 ever
63°F
set in 1945
Forecast low 47°F — 43rd coldest Sep 3 of 87 years · record 32°F (2008) · coldest since 2022.
Ranks
#44 / 87
coldest Sep 4 in 87 yrs of record
Coldest Sep 4 ever
31°F
set in 1964
Mildest Sep 4 ever
61°F
set in 1945
Forecast low 46°F — 44th coldest Sep 4 of 87 years · record 31°F (1964) · coldest since 2021.
Ranks
#53 / 87
coldest Sep 5 in 87 yrs of record
Coldest Sep 5 ever
32°F
set in 1994
Mildest Sep 5 ever
64°F
set in 1998
Forecast low 49°F — 53rd coldest Sep 5 of 87 years · record 32°F (1994) · coldest since 2024.
Ranks
#68 / 87
coldest Sep 6 in 87 yrs of record
Coldest Sep 6 ever
33°F
set in 1954
Mildest Sep 6 ever
63°F
set in 1950
Forecast low 51°F — 68th coldest Sep 6 of 87 years · record 33°F (1954) · coldest since 2025.
Ranks
#67 / 87
coldest Sep 7 in 87 yrs of record
Coldest Sep 7 ever
28°F
set in 2010
Mildest Sep 7 ever
62°F
set in 1983
Forecast low 50°F — 67th coldest Sep 7 of 87 years · record 28°F (2010) · coldest since 2025.
Ranks
#38 / 87
coldest Sep 8 in 87 yrs of record
Coldest Sep 8 ever
29°F
set in 2001
Mildest Sep 8 ever
67°F
set in 1979
Forecast low 45°F — 38th coldest Sep 8 of 87 years · record 29°F (2001) · coldest since 2025.
The hottest and coldest ever recorded at Pocatello in each calendar month, and for the whole 1939–2026 record — with the year each was set.
Month
Record High
Record Low
Jan
61°FJan 30, 2018
-31°FJan 25, 1949
Feb
65°FFeb 29, 1992
-33°FFeb 1, 1985
Mar
77°FMar 18, 2026
-12°FMar 4, 1985
Apr
86°FApr 25, 1946
12°FApr 3, 1945
May
97°FMay 28, 2003
20°FMay 1, 1972
Jun
103°FJun 19, 1940
28°FJun 7, 1995
Jul
104°FJul 22, 2000
34°FJul 8, 1981
Aug
104°FAug 2, 1969
30°FAug 25, 1992
Sep
102°FSep 3, 2022
19°FSep 20, 1983
Oct
91°FOct 1, 1992
-6°FOct 30, 2019
Nov
75°FNov 6, 1999
-14°FNov 26, 1993
Dec
64°FDec 1, 1995
-29°FDec 23, 1990
All-time
104°FAug 2, 1969
-33°FFeb 1, 1985
2026 Records So Far
Records set or tied at Pocatello so far this year — through Aug 30.
Record Highs in 2026
10 broke
plus 6 tied — daily record highs set this year
Monthly high record this year: Mar (77°F)
Record Lows in 2026
2 broke
plus 1 tied — daily record lows set this year
Record Warm Nights & Cold Days
Two more daily records, kept separate from the rankings: the warmest a night has ever stayed (record high minimum) and the coldest a day has ever gotten (record low maximum) — the flip side of the usual record high and low.
Warmest low ever
76°F
record high minimum — the night it never cooled · Jul 16, 1951
Coldest high ever
-9°F
record low maximum — the day it never warmed · Dec 21, 1990
Month
Warmest low
Coldest high
Jan
47°FJan 1, 1997
-3°FJan 11, 1963
Feb
44°FFeb 28, 1970
-2°FFeb 1, 1985
Mar
49°FMar 16, 2015
21°FMar 1, 2002
Apr
56°FApr 21, 1980
31°FApr 23, 1964
May
64°FMay 21, 1958
36°FMay 4, 1975
Jun
71°FJun 23, 1988
47°FJun 2, 1943
Jul
76°FJul 16, 1951
60°FJul 23, 1993
Aug
75°FAug 2, 2000
55°FAug 17, 1968
Sep
68°FSep 2, 1945
40°FSep 30, 1971
Oct
62°FOct 12, 1962
23°FOct 31, 2002
Nov
53°FNov 14, 1941
9°FNov 16, 1955
Dec
45°FDec 31, 1996
-9°FDec 21, 1990
All-time
76°FJul 16, 1951
-9°FDec 21, 1990
Cold Streaks
Current run
0 days
consecutive days with a low ≤ 32°F
Longest ever
137 days
record run, ended Mar 30 1985
So far in 2026
94 days
days with a low ≤ 32°F this year
Climate Normals
Normal low & low by month, from Pocatello's own 1991–2020 record. Today's normal low: 45°F · forecast is +0° vs normal.
Pocatello's observed daily low for the last six weeks — a white ring marks any day that broke or tied its daily record for that date.
2026 So Far
Every day this year against Pocatello's own record — the record low, the normal, and the full span ever seen. A shareable look at where the year stands.