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Illinois · THREADEX · 1879–2026

Springfield, IL

39.845°N, 89.684°W · station SPIthr · 148 years of record
99°F
forecast high · Sep 1

7-Day Forecast

NWS NDFD forecast high temperature for Springfield.
99°TUE9/199°WED9/298°THU9/397°FRI9/496°SAT9/591°SUN9/687°MON9/7

This Day in History

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

Ranks

#2 / 147
warmest Sep 1 in 147 yrs of record

Warmest Sep 1 ever

102°F
set in 2011

Coolest Sep 1 ever

64°F
set in 2003
Forecast high 99°F — 2nd warmest Sep 1 of 147 years · record 102°F (2011) · warmest since 2011.
1879: 81°F1880: 91°F1881: 85°F1882: 69°F1883: 87°F1884: 78°F1885: 68°F1886: 72°F1887: 86°F1888: 70°F1889: 80°F1890: 80°F1891: 83°F1892: 74°F1893: 86°F1894: 92°F1895: 76°F1896: 77°F1897: 92°F1898: 90°F1899: 90°F1900: 83°F1901: 79°F1902: 79°F1903: 77°F1904: 82°F1905: 92°F1906: 87°F1907: 93°F1908: 90°F1909: 70°F1910: 74°F1911: 90°F1912: 93°F1913: 99°F1914: 90°F1915: 78°F1916: 85°F1917: 86°F1918: 81°F1919: 78°F1920: 81°F1921: 89°F1922: 98°F1923: 75°F1924: 93°F1925: 88°F1926: 89°F1927: 86°F1928: 75°F1929: 89°F1930: 92°F1931: 76°F1932: 95°F1933: 88°F1934: 87°F1935: 65°F1936: 88°F1937: 94°F1938: 84°F1939: 90°F1940: 80°F1941: 84°F1942: 90°F1943: 90°F1944: 79°F1945: 88°F1946: 76°F1947: 90°F1948: 83°F1949: 71°F1950: 79°F1951: 77°F1952: 92°F1953: 99°F1954: 84°F1955: 76°F1956: 87°F1957: 89°F1958: 77°F1959: 70°F1960: 94°F1961: 86°F1962: 81°F1963: 79°F1964: 86°F1965: 75°F1966: 90°F1967: 72°F1968: 77°F1969: 83°F1970: 85°F1971: 90°F1972: 85°F1973: 93°F1974: 71°F1975: 90°F1976: 88°F1977: 88°F1978: 81°F1979: 86°F1980: 87°F1981: 77°F1982: 88°F1983: 85°F1984: 88°F1985: 90°F1986: 82°F1987: 79°F1988: 85°F1989: 84°F1990: 92°F1991: 81°F1992: 81°F1993: 80°F1994: 69°F1995: 85°F1996: 84°F1997: 88°F1998: 79°F1999: 89°F2000: 93°F2001: 79°F2002: 87°F2003: 64°F2004: 84°F2005: 87°F2006: 75°F2007: 86°F2008: 88°F2009: 75°F2010: 81°F2011: 102°F2012: 82°F2013: 85°F2014: 84°F2015: 93°F2016: 86°F2017: 75°F2018: 89°F2019: 81°F2020: 81°F2021: 81°F2022: 83°F2023: 84°F2024: 83°F2025: 80°F99° forecast6065707580859095100105188018901900191019201930194019501960197019801990200020102020
📖 Springfield's full Climate Almanac →

The Numbers

Forecast high · Sep 199°F
Hottest this date since2011
This-date record102°F
This-date rank#2 of 147
Hottest at any time since2023
All-time record112°F (1954)
Odds to tie/break0.0% (daily)
Period of record1879–2026

Record Book

The hottest and coldest ever recorded at Springfield in each calendar month, and for the whole 1879–2026 record — with the year each was set.
MonthRecord HighRecord Low
Jan73°FJan 23, 1909-22°FJan 5, 1884
Feb80°FFeb 27, 2024-24°FFeb 13, 1905
Mar92°FMar 26, 2026-12°FMar 5, 1960
Apr90°FApr 10, 193016°FApr 2, 2018
May101°FMay 31, 193428°FMay 10, 1966
Jun104°FJun 1, 193439°FJun 1, 2003
Jul112°FJul 14, 195448°FJul 14, 1967
Aug108°FAug 8, 193443°FAug 13, 1964
Sep102°FSep 1, 201131°FSep 29, 1899
Oct93°FOct 2, 195313°FOct 30, 1925
Nov83°FNov 1, 1950-3°FNov 30, 1964
Dec74°FDec 3, 1970-21°FDec 23, 1989
All-time112°FJul 14, 1954-24°FFeb 13, 1905

2026 Records So Far

Records set or tied at Springfield so far this year — through Aug 30.

Record Highs in 2026

7 broke
plus 1 tied — daily record highs set this year
Monthly high record this year: Mar (92°F)

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

84°F
record high minimum — the night it never cooled · Jul 13, 1936

Coldest high ever

-12°F
record low maximum — the day it never warmed · Jan 5, 1884
MonthWarmest lowColdest high
Jan57°FJan 7, 2008-12°FJan 5, 1884
Feb57°FFeb 25, 2000-6°FFeb 9, 1899
Mar66°FMar 19, 201212°FMar 4, 1960
Apr68°FApr 7, 189330°FApr 1, 1881
May74°FMay 25, 189641°FMay 1, 1909
Jun82°FJun 29, 193152°FJun 3, 1945
Jul84°FJul 13, 193663°FJul 14, 1990
Aug83°FAug 9, 193461°FAug 26, 1944
Sep77°FSep 6, 192546°FSep 25, 1942
Oct73°FOct 3, 195423°FOct 29, 1925
Nov66°FNov 1, 20166°FNov 24, 1950
Dec61°FDec 2, 1982-11°FDec 24, 1983
All-time84°FJul 13, 1936-12°FJan 5, 1884

Hot Streaks

Current run

1 days
consecutive days with a high ≥ 90°F

Longest ever

22 days
record run, ended Jul 19 1921

So far in 2026

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

Climate Normals

Normal high & low by month, from Springfield's own 1991–2020 record. Today's normal high: 84°F · forecast is +14° vs normal.
Jan: 35°FJan: 19°FFeb: 41°FFeb: 23°FMar: 53°FMar: 33°FApr: 65°FApr: 43°FMay: 75°FMay: 54°FJun: 84°FJun: 63°FJul: 86°FJul: 66°FAug: 85°FAug: 64°FSep: 80°FSep: 55°FOct: 67°FOct: 44°FNov: 52°FNov: 34°FDec: 40°FDec: 25°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise5:26 AM
Sunset6:30 PM
Solar noon11:58 AM
Daylight13h 04m · losing 17 min/wk
Local standard time (no DST), level horizon.

Location

39.84°N, 89.68°W

Nearby Stations

Peoria, IL56 mi NQuincy, IL80 mi WSt Louis, MO84 mi SWBurlington, IA99 mi NWMoline, IL119 mi NWCarbondale, IL144 mi S

The Last 6 Weeks

Springfield'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.
Springfield, IL — last six weeks of daily high

2026 So Far

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

Every Day Since 1879

Each cell is one day's high at Springfield, coloured by temperature — 148 years of record, so heat waves read as warm streaks and cold snaps as blue.
Springfield, IL daily high heat map 1879–2026

Days Above the Mark

How many days a year hit a given high at Springfield — counted through Sep 1 each year, so you can see whether 2026 is running hot. Pick a threshold:
18 days ≥90°F so far in 2026 — tied for the 114th most in 148 years. Normal for this point: 27. Record: 67 in 1934.

Share Card

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