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Illinois · THREADEX · 1883–2026

Peoria, IL

40.667°N, 89.684°W · station PIAthr · 144 years of record
96°F
forecast high · Sep 1

7-Day Forecast

NWS NDFD forecast high temperature for Peoria.
96°TUE9/196°WED9/295°THU9/393°FRI9/492°SAT9/587°SUN9/684°MON9/7

This Day in History

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

Ranks

#5 / 142
warmest Sep 1 in 142 yrs of record

Warmest Sep 1 ever

101°F
set in 1913

Coolest Sep 1 ever

61°F
set in 1935
Forecast high 96°F — 5th warmest Sep 1 of 142 years · record 101°F (1913) · warmest since 2011.
1883: 90°F1884: 83°F1885: 70°F1886: 65°F1887: 92°F1888: 77°F1889: 91°F1890: 82°F1891: 84°F1892: 77°F1893: 89°F1894: 95°F1895: 76°F1896: 80°F1897: 86°F1898: 93°F1899: 95°F1900: 86°F1901: 79°F1902: 79°F1904: 88°F1905: 93°F1906: 86°F1907: 91°F1908: 90°F1909: 70°F1910: 70°F1911: 95°F1912: 95°F1913: 101°F1914: 85°F1915: 79°F1916: 84°F1917: 86°F1918: 82°F1919: 80°F1920: 82°F1921: 89°F1922: 99°F1923: 75°F1924: 87°F1925: 89°F1926: 88°F1927: 87°F1928: 73°F1929: 87°F1930: 92°F1931: 77°F1932: 95°F1933: 90°F1934: 84°F1935: 61°F1936: 89°F1937: 94°F1938: 82°F1939: 90°F1940: 76°F1941: 87°F1942: 88°F1943: 83°F1944: 74°F1945: 86°F1946: 75°F1947: 88°F1948: 84°F1949: 71°F1950: 83°F1951: 70°F1952: 90°F1953: 100°F1954: 82°F1955: 77°F1956: 83°F1957: 90°F1958: 72°F1959: 74°F1960: 91°F1961: 86°F1962: 80°F1963: 76°F1964: 84°F1965: 72°F1966: 88°F1967: 72°F1968: 73°F1969: 83°F1970: 83°F1971: 87°F1972: 85°F1973: 90°F1974: 70°F1975: 86°F1976: 87°F1977: 84°F1978: 84°F1979: 87°F1980: 86°F1981: 74°F1982: 87°F1983: 88°F1984: 85°F1985: 88°F1986: 84°F1987: 76°F1988: 86°F1989: 81°F1990: 87°F1991: 81°F1992: 76°F1993: 78°F1994: 72°F1995: 82°F1996: 83°F1997: 86°F1998: 80°F1999: 86°F2000: 96°F2001: 75°F2002: 86°F2003: 65°F2004: 81°F2005: 86°F2006: 75°F2007: 82°F2008: 88°F2009: 73°F2010: 79°F2011: 100°F2012: 84°F2013: 92°F2014: 83°F2015: 95°F2016: 82°F2017: 74°F2018: 88°F2019: 72°F2020: 80°F2021: 81°F2022: 86°F2023: 83°F2024: 83°F2025: 80°F96° forecast606570758085909510010518901900191019201930194019501960197019801990200020102020
📖 Peoria's full Climate Almanac →

The Numbers

Forecast high · Sep 196°F
Hottest this date since2011
This-date record101°F
This-date rank#5 of 142
Hottest at any time since2025
All-time record113°F (1936)
Odds to tie/break0.0% (daily)
Period of record1883–2026

Record Book

The hottest and coldest ever recorded at Peoria in each calendar month, and for the whole 1883–2026 record — with the year each was set.
MonthRecord HighRecord Low
Jan71°FJan 23, 1909-27°FJan 5, 1884
Feb78°FFeb 27, 2024-26°FFeb 13, 1905
Mar87°FMar 21, 1907-10°FMar 8, 1943
Apr92°FApr 29, 189414°FApr 5, 1920
May104°FMay 31, 193425°FMay 10, 1966
Jun105°FJun 1, 193439°FJun 4, 1945
Jul113°FJul 15, 193646°FJul 26, 1911
Aug106°FAug 18, 193641°FAug 26, 1910
Sep104°FSep 5, 189926°FSep 30, 1899
Oct93°FOct 3, 20067°FOct 30, 1925
Nov81°FNov 1, 1888-2°FNov 26, 1977
Dec71°FDec 3, 1970-24°FDec 28, 1924
All-time113°FJul 15, 1936-27°FJan 5, 1884

2026 Records So Far

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

Record Highs in 2026

6 broke
plus 2 tied — daily record highs set this year
Monthly high record this year: Mar (87°F)

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

82°F
record high minimum — the night it never cooled · Aug 22, 1936

Coldest high ever

-16°F
record low maximum — the day it never warmed · Jan 5, 1884
MonthWarmest lowColdest high
Jan59°FJan 2, 1897-16°FJan 5, 1884
Feb54°FFeb 24, 1930-7°FFeb 13, 1905
Mar66°FMar 21, 201211°FMar 7, 1943
Apr72°FApr 28, 189629°FApr 6, 1982
May75°FMay 29, 189538°FMay 1, 1909
Jun80°FJun 25, 189049°FJun 3, 1945
Jul80°FJul 24, 189262°FJul 5, 1909
Aug82°FAug 22, 193661°FAug 25, 1987
Sep76°FSep 3, 193945°FSep 25, 1942
Oct72°FOct 5, 188421°FOct 29, 1925
Nov64°FNov 4, 20248°FNov 24, 1950
Dec61°FDec 13, 2015-11°FDec 24, 1983
All-time82°FAug 22, 1936-16°FJan 5, 1884

Hot Streaks

Current run

0 days
consecutive days with a high ≥ 90°F

Longest ever

21 days
record run, ended Jul 31 1916

So far in 2026

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

Climate Normals

Normal high & low by month, from Peoria's own 1991–2020 record. Today's normal high: 83°F · forecast is +13° vs normal.
Jan: 33°FJan: 17°FFeb: 38°FFeb: 21°FMar: 51°FMar: 31°FApr: 63°FApr: 42°FMay: 74°FMay: 53°FJun: 83°FJun: 62°FJul: 86°FJul: 66°FAug: 84°FAug: 64°FSep: 78°FSep: 56°FOct: 65°FOct: 44°FNov: 50°FNov: 33°FDec: 38°FDec: 23°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise5:26 AM
Sunset6:31 PM
Solar noon11:58 AM
Daylight13h 06m · losing 18 min/wk
Local standard time (no DST), level horizon.

Location

40.67°N, 89.68°W

Nearby Stations

Springfield, IL56 mi SMoline, IL69 mi NWBurlington, IA75 mi WQuincy, IL94 mi SWRockford, IL109 mi NChicago, IL127 mi NE

The Last 6 Weeks

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

2026 So Far

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

Every Day Since 1883

Each cell is one day's high at Peoria, coloured by temperature — 144 years of record, so heat waves read as warm streaks and cold snaps as blue.
Peoria, IL daily high heat map 1883–2026

Days Above the Mark

How many days a year hit a given high at Peoria — counted through Sep 1 each year, so you can see whether 2026 is running hot. Pick a threshold:
13 days ≥90°F so far in 2026 — tied for the 116th most in 144 years. Normal for this point: 25. Record: 61 in 1887.

Share Card

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