46.921°N, 114.094°W · station MSOthr · 134 years of record
89°F
HOTTEST SEP 1 SINCE 2025
forecast high · Sep 1
7-Day Forecast
NWS NDFD forecast high temperature for Missoula.
This Day in History
Every year's high on each of the next 7 forecast dates at Missoula — toggle a day below. The forecast line shows where it lands; the ringed bar is the hottest on record.
Ranks
#20 / 125
warmest Sep 1 in 125 yrs of record
Warmest Sep 1 ever
99°F
set in 1967
Coolest Sep 1 ever
55°F
set in 1964
Forecast high 89°F — 20th warmest Sep 1 of 125 years · record 99°F (1967) · warmest since 2025.
Ranks
#92 / 128
warmest Sep 2 in 128 yrs of record
Warmest Sep 2 ever
97°F
set in 2017
Coolest Sep 2 ever
56°F
set in 1915
Forecast high 72°F — 92nd warmest Sep 2 of 128 years · record 97°F (2017) · warmest since 2025.
Ranks
#87 / 126
warmest Sep 3 in 126 yrs of record
Warmest Sep 3 ever
98°F
set in 1950
Coolest Sep 3 ever
56°F
set in 1964
Forecast high 70°F — 87th warmest Sep 3 of 126 years · record 98°F (1950) · warmest since 2025.
Ranks
#93 / 127
warmest Sep 4 in 127 yrs of record
Warmest Sep 4 ever
98°F
set in 1988
Coolest Sep 4 ever
56°F
set in 1910
Forecast high 70°F — 93rd warmest Sep 4 of 127 years · record 98°F (1988) · warmest since 2025.
Ranks
#78 / 127
warmest Sep 5 in 127 yrs of record
Warmest Sep 5 ever
96°F
set in 1967
Coolest Sep 5 ever
52°F
set in 1912
Forecast high 76°F — 78th warmest Sep 5 of 127 years · record 96°F (1967) · warmest since 2025.
Ranks
#73 / 128
warmest Sep 6 in 128 yrs of record
Warmest Sep 6 ever
95°F
set in 2020
Coolest Sep 6 ever
50°F
set in 1911
Forecast high 77°F — 73rd warmest Sep 6 of 128 years · record 95°F (2020) · warmest since 2025.
Ranks
#76 / 129
warmest Sep 7 in 129 yrs of record
Warmest Sep 7 ever
95°F
set in 2022
Coolest Sep 7 ever
52°F
set in 2016
Forecast high 73°F — 76th warmest Sep 7 of 129 years · record 95°F (2022) · warmest since 2025.
The hottest and coldest ever recorded at Missoula in each calendar month, and for the whole 1893–2026 record — with the year each was set.
Month
Record High
Record Low
Jan
60°FJan 1, 1939
-33°FJan 26, 1957
Feb
66°FFeb 24, 1995
-28°FFeb 10, 1933
Mar
78°FMar 30, 2004
-13°FMar 5, 1955
Apr
90°FApr 25, 1910
2°FApr 1, 1936
May
95°FMay 29, 1936
21°FMay 1, 1954
Jun
102°FJun 28, 2015
26°FJun 20, 1906
Jul
107°FJul 6, 2007
27°FJul 1, 1901
Aug
105°FAug 4, 1961
25°FAug 19, 1901
Sep
99°FSep 1, 1967
15°FSep 25, 1926
Oct
85°FOct 3, 1963
-7°FOct 25, 2020
Nov
73°FNov 12, 1999
-23°FNov 16, 1955
Dec
67°FDec 1, 2021
-30°FDec 17, 1964
All-time
107°FJul 6, 2007
-33°FJan 26, 1957
2026 Records So Far
Records set or tied at Missoula so far this year — through Aug 30.
Record Highs in 2026
7 broke
plus 1 tied — daily record highs set this year
Record Lows in 2026
1 broke
plus 0 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
72°F
record high minimum — the night it never cooled · Jul 27, 1939
Coldest high ever
-13°F
record low maximum — the day it never warmed · Dec 17, 1964
Month
Warmest low
Coldest high
Jan
42°FJan 18, 1919
-12°FJan 11, 1963
Feb
41°FFeb 10, 1951
-13°FFeb 2, 1989
Mar
49°FMar 31, 1939
5°FMar 1, 2014
Apr
55°FApr 24, 1934
22°FApr 1, 1936
May
65°FMay 28, 1901
33°FMay 3, 1964
Jun
67°FJun 26, 1907
42°FJun 9, 2002
Jul
72°FJul 27, 1939
48°FJul 19, 1972
Aug
68°FAug 1, 2021
49°FAug 23, 1992
Sep
63°FSep 4, 1950
35°FSep 24, 1934
Oct
54°FOct 2, 1938
18°FOct 26, 2020
Nov
50°FNov 10, 1989
1°FNov 16, 1959
Dec
44°FDec 1, 2021
-13°FDec 17, 1964
All-time
72°FJul 27, 1939
-13°FDec 17, 1964
Hot Streaks
Current run
0 days
consecutive days with a high ≥ 90°F
Longest ever
22 days
record run, ended Jul 18 2021
So far in 2026
30 days
days with a high ≥ 90°F this year
Climate Normals
Normal high & low by month, from Missoula's own 1991–2020 record. Today's normal high: 80°F · forecast is +9° vs normal.
Missoula's observed daily high 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 Missoula's own record — the record high, the normal, and the full span ever seen. A shareable look at where the year stands.