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Minnesota · THREADEX · 1874–2026

Duluth, MN

46.844°N, 92.187°W · station DLHthr · 153 years of record
62°F
forecast high · Oct 21

7-Day Forecast

NWS NDFD forecast high temperature for Duluth.
56°SAT10/1760°SUN10/1858°MON10/1957°TUE10/2062°WED10/2161°THU10/2261°FRI10/23

This Day in History

Every year's high on each of the next 7 forecast dates at Duluth — toggle a day below. The forecast line shows where it lands; the ringed bar is the hottest on record.

Ranks

#18 / 152
warmest Oct 21 in 152 yrs of record

Warmest Oct 21 ever

80°F
set in 1901

Coolest Oct 21 ever

29°F
set in 1913
Forecast high 62°F — 18th warmest Oct 21 of 152 years · record 80°F (1901) · warmest since 2024.
1874: 52°F1875: 63°F1876: 50°F1877: 54°F1878: 50°F1879: 60°F1880: 44°F1881: 57°F1882: 50°F1883: 38°F1884: 58°F1885: 45°F1886: 68°F1887: 40°F1888: 33°F1889: 35°F1890: 50°F1891: 48°F1892: 57°F1893: 46°F1894: 62°F1895: 54°F1896: 34°F1897: 50°F1898: 44°F1899: 49°F1900: 61°F1901: 80°F1902: 47°F1903: 54°F1904: 53°F1905: 39°F1906: 41°F1907: 55°F1908: 51°F1909: 46°F1910: 38°F1911: 42°F1912: 55°F1913: 29°F1914: 64°F1915: 58°F1916: 35°F1917: 36°F1918: 59°F1919: 43°F1920: 70°F1921: 69°F1922: 51°F1923: 55°F1924: 53°F1925: 33°F1926: 49°F1927: 60°F1928: 52°F1929: 53°F1930: 42°F1931: 60°F1932: 41°F1933: 49°F1934: 59°F1935: 48°F1936: 46°F1937: 36°F1938: 47°F1939: 60°F1940: 52°F1941: 64°F1942: 42°F1943: 49°F1944: 62°F1945: 50°F1946: 66°F1947: 59°F1948: 48°F1949: 45°F1950: 47°F1951: 45°F1952: 39°F1953: 75°F1954: 61°F1955: 52°F1956: 66°F1957: 46°F1958: 66°F1959: 44°F1960: 34°F1961: 50°F1962: 53°F1963: 61°F1964: 44°F1965: 50°F1966: 57°F1967: 48°F1968: 55°F1969: 36°F1970: 51°F1971: 49°F1972: 44°F1973: 71°F1974: 59°F1975: 54°F1976: 39°F1977: 61°F1978: 76°F1979: 55°F1980: 46°F1981: 32°F1982: 40°F1983: 50°F1984: 41°F1985: 53°F1986: 70°F1987: 37°F1988: 41°F1989: 58°F1990: 41°F1991: 44°F1992: 39°F1993: 37°F1994: 59°F1995: 34°F1996: 52°F1997: 32°F1998: 49°F1999: 62°F2000: 62°F2001: 52°F2002: 32°F2003: 53°F2004: 56°F2005: 44°F2006: 34°F2007: 52°F2008: 48°F2009: 41°F2010: 49°F2011: 56°F2012: 53°F2013: 35°F2014: 47°F2015: 50°F2016: 48°F2017: 63°F2018: 52°F2019: 50°F2020: 34°F2021: 48°F2022: 63°F2023: 54°F2024: 74°F2025: 43°F62° forecast253035404550556065707580188018901900191019201930194019501960197019801990200020102020
📖 Duluth's full Climate Almanac →

The Numbers

Forecast high · Oct 2162°F
Hottest this date since2024
This-date record80°F
This-date rank#18 of 152
Hottest at any time since2026
All-time record106°F (1936)
Odds to tie/break0.0% (daily)
Period of record1874–2026

Record Book

The hottest and coldest ever recorded at Duluth in each calendar month, and for the whole 1874–2026 record — with the year each was set.
MonthRecord HighRecord Low
Jan55°FJan 22, 1942-41°FJan 2, 1885
Feb58°FFeb 26, 1895-39°FFeb 2, 1996
Mar81°FMar 28, 1946-29°FMar 2, 1989
Apr88°FApr 27, 1952-5°FApr 3, 1954
May95°FMay 30, 193916°FMay 3, 1907
Jun97°FJun 28, 191027°FJun 10, 1972
Jul106°FJul 13, 193635°FJul 1, 1988
Aug97°FAug 1, 193032°FAug 27, 1986
Sep97°FSep 3, 202323°FSep 20, 1962
Oct86°FOct 2, 19536°FOct 27, 1917
Nov75°FNov 6, 2020-29°FNov 29, 1875
Dec56°FDec 6, 1939-35°FDec 28, 1917
All-time106°FJul 13, 1936-41°FJan 2, 1885

2026 Records So Far

Records set or tied at Duluth so far this year — through Oct 15.

Record Highs in 2026

0 broke
plus 1 tied — daily record highs set this year

Record Lows in 2026

0 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

79°F
record high minimum — the night it never cooled · Jul 13, 1936

Coldest high ever

-22°F
record low maximum — the day it never warmed · Jan 5, 1912
MonthWarmest lowColdest high
Jan35°FJan 31, 1877-22°FJan 5, 1912
Feb37°FFeb 27, 1895-21°FFeb 2, 1996
Mar50°FMar 18, 2012-4°FMar 23, 1974
Apr57°FApr 27, 190111°FApr 2, 1954
May67°FMay 8, 189627°FMay 3, 1954
Jun76°FJun 30, 193137°FJun 3, 1891
Jul79°FJul 13, 193649°FJul 2, 1992
Aug77°FAug 25, 201350°FAug 30, 1892
Sep72°FSep 11, 193138°FSep 30, 1985
Oct64°FOct 3, 202321°FOct 28, 1925
Nov53°FNov 3, 1903-6°FNov 30, 1896
Dec42°FDec 23, 1877-18°FDec 23, 1983
All-time79°FJul 13, 1936-22°FJan 5, 1912

Hot Streaks

Current run

0 days
consecutive days with a high ≥ 90°F

Longest ever

7 days
record run, ended Jul 13 1936

So far in 2026

4 days
days with a high ≥ 90°F this year

Climate Normals

Normal high & low by month, from Duluth's own 1991–2020 record. Today's normal high: 49°F · forecast is +13° vs normal.
Jan: 19°FJan: 2°FFeb: 24°FFeb: 6°FMar: 35°FMar: 18°FApr: 48°FApr: 30°FMay: 62°FMay: 41°FJun: 71°FJun: 50°FJul: 77°FJul: 56°FAug: 75°FAug: 55°FSep: 66°FSep: 47°FOct: 52°FOct: 36°FNov: 36°FNov: 23°FDec: 24°FDec: 10°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise6:28 AM
Sunset5:20 PM
Solar noon11:54 AM
Daylight10h 52m · losing 23 min/wk
Local standard time (no DST), level horizon.

Location

46.84°N, 92.19°W

Nearby Stations

Hibbing, MN47 mi NWAshland, WI63 mi EHayward, WI66 mi SEBrainerd, MN96 mi WSaint Cloud, MN126 mi SWInternational Falls, MN131 mi NW

The Last 6 Weeks

Duluth'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.
Duluth, MN — last six weeks of daily high

2026 So Far

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

Every Day Since 1874

Each cell is one day's high at Duluth, coloured by temperature — 153 years of record, so heat waves read as warm streaks and cold snaps as blue.
Duluth, MN daily high heat map 1874–2026

Days Above the Mark

How many days a year hit a given high at Duluth — counted through Oct 21 each year, so you can see whether 2026 is running hot. Pick a threshold:
4 days ≥90°F so far in 2026 — tied for the 23rd most in 153 years. Normal for this point: 2. Record: 14 in 1936.

Share Card

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