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Montana · THREADEX · 1893–2026

Missoula, MT

46.921°N, 114.094°W · station MSOthr · 134 years of record
89°F
forecast high · Sep 1

7-Day Forecast

NWS NDFD forecast high temperature for Missoula.
89°TUE9/172°WED9/270°THU9/370°FRI9/476°SAT9/577°SUN9/673°MON9/7

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.
1893: 90°F1894: 68°F1895: 89°F1896: 76°F1897: 73°F1898: 68°F1899: 72°F1902: 80°F1904: 84°F1905: 77°F1906: 76°F1907: 83°F1909: 65°F1910: 69°F1911: 93°F1912: 56°F1913: 74°F1914: 78°F1915: 77°F1916: 90°F1917: 62°F1918: 85°F1919: 75°F1923: 89°F1924: 77°F1925: 88°F1926: 66°F1927: 63°F1928: 81°F1929: 77°F1930: 77°F1931: 82°F1932: 61°F1933: 72°F1934: 79°F1935: 86°F1936: 84°F1937: 86°F1938: 88°F1939: 75°F1940: 94°F1941: 70°F1942: 79°F1943: 65°F1944: 90°F1945: 95°F1947: 82°F1948: 83°F1949: 90°F1950: 91°F1951: 72°F1952: 63°F1953: 81°F1954: 82°F1955: 90°F1956: 75°F1957: 74°F1958: 73°F1959: 69°F1960: 85°F1961: 56°F1962: 82°F1963: 63°F1964: 55°F1965: 79°F1966: 75°F1967: 99°F1968: 82°F1969: 91°F1970: 83°F1971: 57°F1972: 76°F1973: 65°F1974: 68°F1975: 58°F1976: 88°F1977: 72°F1978: 78°F1979: 78°F1980: 66°F1981: 77°F1982: 80°F1983: 84°F1984: 60°F1985: 75°F1986: 72°F1987: 90°F1988: 83°F1989: 80°F1990: 83°F1991: 79°F1992: 81°F1993: 73°F1994: 77°F1995: 91°F1996: 73°F1997: 89°F1998: 93°F1999: 66°F2000: 81°F2001: 85°F2002: 78°F2003: 87°F2004: 86°F2005: 80°F2006: 77°F2007: 85°F2008: 64°F2009: 88°F2010: 62°F2011: 72°F2012: 83°F2013: 95°F2014: 73°F2015: 84°F2016: 82°F2017: 86°F2018: 76°F2019: 92°F2020: 58°F2021: 74°F2022: 94°F2023: 81°F2024: 94°F2025: 96°F89° forecast55606570758085909510019101930194019501960197019801990200020102020
📖 Missoula's full Climate Almanac →

The Numbers

Forecast high · Sep 189°F
Hottest this date since2025
This-date record99°F
This-date rank#20 of 125
Hottest at any time since2026
All-time record107°F (2007)
Odds to tie/break0.0% (daily)
Period of record1893–2026

Record Book

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.
MonthRecord HighRecord Low
Jan60°FJan 1, 1939-33°FJan 26, 1957
Feb66°FFeb 24, 1995-28°FFeb 10, 1933
Mar78°FMar 30, 2004-13°FMar 5, 1955
Apr90°FApr 25, 19102°FApr 1, 1936
May95°FMay 29, 193621°FMay 1, 1954
Jun102°FJun 28, 201526°FJun 20, 1906
Jul107°FJul 6, 200727°FJul 1, 1901
Aug105°FAug 4, 196125°FAug 19, 1901
Sep99°FSep 1, 196715°FSep 25, 1926
Oct85°FOct 3, 1963-7°FOct 25, 2020
Nov73°FNov 12, 1999-23°FNov 16, 1955
Dec67°FDec 1, 2021-30°FDec 17, 1964
All-time107°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
MonthWarmest lowColdest high
Jan42°FJan 18, 1919-12°FJan 11, 1963
Feb41°FFeb 10, 1951-13°FFeb 2, 1989
Mar49°FMar 31, 19395°FMar 1, 2014
Apr55°FApr 24, 193422°FApr 1, 1936
May65°FMay 28, 190133°FMay 3, 1964
Jun67°FJun 26, 190742°FJun 9, 2002
Jul72°FJul 27, 193948°FJul 19, 1972
Aug68°FAug 1, 202149°FAug 23, 1992
Sep63°FSep 4, 195035°FSep 24, 1934
Oct54°FOct 2, 193818°FOct 26, 2020
Nov50°FNov 10, 19891°FNov 16, 1959
Dec44°FDec 1, 2021-13°FDec 17, 1964
All-time72°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.
Jan: 32°FJan: 18°FFeb: 37°FFeb: 21°FMar: 49°FMar: 27°FApr: 57°FApr: 32°FMay: 67°FMay: 40°FJun: 74°FJun: 46°FJul: 86°FJul: 52°FAug: 85°FAug: 50°FSep: 73°FSep: 42°FOct: 56°FOct: 33°FNov: 41°FNov: 24°FDec: 32°FDec: 18°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise4:56 AM
Sunset6:16 PM
Solar noon11:36 AM
Daylight13h 21m · losing 22 min/wk
Local standard time (no DST), level horizon.

Location

46.92°N, 114.09°W

Nearby Stations

Kalispell, MT95 mi NHelena, MT102 mi EGreat Falls, MT132 mi EPullman, WA143 mi WLewiston, ID143 mi WChallis, ID165 mi S

The Last 6 Weeks

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.
Missoula, MT — last six weeks of daily high

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.
Missoula, MT — 2026 daily high trace
Download year chart

Every Day Since 1893

Each cell is one day's high at Missoula, coloured by temperature — 134 years of record, so heat waves read as warm streaks and cold snaps as blue.
Missoula, MT daily high heat map 1893–2026

Days Above the Mark

How many days a year hit a given high at Missoula — counted through Sep 1 each year, so you can see whether 2026 is running hot. Pick a threshold:
30 days ≥90°F so far in 2026 — tied for the 24th most in 134 years. Normal for this point: 22. Record: 51 in 2007.

Share Card

A ready-to-share summary of Missoula's outlook — post it, or link this page.
Missoula, MT hot share card
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