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Montana · THREADEX · 1893–2026

Missoula, MT

46.921°N, 114.094°W · station MSOthr · 134 years of record
42°F
forecast low · Sep 5

7-Day Forecast

NWS NDFD forecast low temperature for Missoula.
49°WED9/243°THU9/343°FRI9/442°SAT9/545°SUN9/647°MON9/744°TUE9/8

This Day in History

Every year's low 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 coldest on record.

Ranks

#37 / 126
coldest Sep 5 in 126 yrs of record

Coldest Sep 5 ever

34°F
set in 1897

Mildest Sep 5 ever

63°F
set in 2013
Forecast low 42°F — 37th coldest Sep 5 of 126 years · record 34°F (1897) · coldest since 2014.
1893: 43°F1894: 40°F1895: 42°F1896: 41°F1897: 34°F1898: 41°F1899: 40°F1900: 54°F1902: 39°F1904: 41°F1905: 42°F1906: 45°F1908: 39°F1909: 48°F1910: 39°F1911: 42°F1912: 42°F1913: 50°F1914: 39°F1915: 44°F1916: 51°F1917: 45°F1918: 36°F1919: 48°F1923: 46°F1924: 46°F1925: 50°F1926: 42°F1927: 50°F1928: 44°F1929: 36°F1930: 46°F1931: 51°F1932: 38°F1933: 45°F1934: 48°F1935: 47°F1936: 50°F1937: 49°F1938: 48°F1939: 59°F1940: 48°F1941: 53°F1942: 54°F1943: 49°F1944: 45°F1946: 51°F1947: 53°F1948: 38°F1949: 54°F1950: 58°F1951: 40°F1952: 49°F1953: 41°F1954: 41°F1955: 50°F1956: 38°F1957: 43°F1958: 39°F1959: 50°F1960: 50°F1961: 43°F1962: 35°F1963: 45°F1964: 34°F1965: 36°F1966: 44°F1967: 52°F1968: 43°F1969: 39°F1970: 47°F1971: 41°F1972: 40°F1973: 41°F1974: 46°F1975: 38°F1976: 40°F1977: 52°F1978: 58°F1979: 38°F1980: 37°F1981: 43°F1982: 39°F1983: 43°F1984: 46°F1985: 55°F1986: 52°F1987: 42°F1988: 55°F1989: 43°F1990: 51°F1991: 46°F1992: 50°F1993: 52°F1994: 35°F1995: 54°F1996: 53°F1997: 46°F1998: 49°F1999: 49°F2000: 40°F2001: 51°F2002: 50°F2003: 53°F2004: 49°F2005: 44°F2006: 47°F2007: 60°F2008: 44°F2009: 46°F2010: 43°F2011: 40°F2012: 41°F2013: 63°F2014: 37°F2015: 45°F2016: 43°F2017: 48°F2018: 45°F2019: 46°F2020: 50°F2021: 44°F2022: 48°F2023: 52°F2024: 50°F2025: 54°F42° forecast3035404550556065190019101930194019501960197019801990200020102020
📖 Missoula's full Climate Almanac →

The Numbers

Forecast low · Sep 542°F
Coldest this date since2014
This-date record34°F
This-date rank#37 of 126
Coldest at any time since2026
All-time record-33°F (1957)
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

Cold Streaks

Current run

0 days
consecutive days with a low ≤ 32°F

Longest ever

150 days
record run, ended Mar 30 1965

So far in 2026

100 days
days with a low ≤ 32°F this year

Climate Normals

Normal low & low by month, from Missoula's own 1991–2020 record. Today's normal low: 46°F · forecast is -4° 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 low 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 low

2026 So Far

Every day this year against Missoula's own record — the record low, the normal, and the full span ever seen. A shareable look at where the year stands.
Missoula, MT — 2026 daily low trace
Download year chart

Every Day Since 1893

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

Days Below the Mark

How many days a year hit a given low at Missoula — counted through Sep 5 each year, so you can see whether 2026 is running cold. Pick a threshold:
100 days ≤32°F so far in 2026 — tied for the 81st most in 134 years. Normal for this point: 99. Record: 131 in 1896.

Share Card

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