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Illinois · THREADEX · 1893–2026

Rockford, IL

42.193°N, 89.093°W · station RFDthr · 134 years of record
93°F
forecast high · Sep 1

7-Day Forecast

NWS NDFD forecast high temperature for Rockford.
93°TUE9/193°WED9/288°THU9/387°FRI9/489°SAT9/585°SUN9/681°MON9/7

This Day in History

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

Ranks

#7 / 125
warmest Sep 1 in 125 yrs of record

Warmest Sep 1 ever

102°F
set in 1953

Coolest Sep 1 ever

64°F
set in 1951
Forecast high 93°F — 7th warmest Sep 1 of 125 years · record 102°F (1953) · warmest since 2012.
1893: 78°F1895: 85°F1896: 78°F1897: 84°F1904: 76°F1905: 79°F1906: 79°F1907: 88°F1908: 91°F1909: 75°F1910: 73°F1911: 81°F1912: 86°F1913: 85°F1914: 83°F1915: 74°F1916: 91°F1917: 82°F1918: 82°F1919: 79°F1920: 83°F1921: 92°F1922: 99°F1923: 77°F1924: 85°F1925: 92°F1926: 81°F1927: 90°F1928: 76°F1929: 88°F1930: 90°F1931: 77°F1932: 92°F1933: 90°F1934: 82°F1935: 68°F1936: 84°F1937: 91°F1938: 79°F1939: 90°F1940: 74°F1941: 83°F1942: 90°F1943: 83°F1944: 75°F1945: 84°F1947: 87°F1948: 85°F1949: 70°F1950: 77°F1951: 64°F1952: 85°F1953: 102°F1954: 82°F1955: 77°F1956: 81°F1957: 93°F1958: 68°F1959: 78°F1960: 91°F1961: 87°F1962: 79°F1963: 79°F1964: 78°F1965: 69°F1966: 90°F1967: 72°F1968: 71°F1969: 73°F1970: 77°F1971: 88°F1972: 84°F1973: 91°F1974: 70°F1975: 84°F1976: 88°F1977: 73°F1978: 84°F1979: 84°F1980: 79°F1981: 72°F1982: 81°F1983: 83°F1984: 82°F1985: 80°F1986: 83°F1987: 77°F1988: 85°F1989: 78°F1990: 89°F1991: 81°F1992: 72°F1993: 75°F1994: 71°F1995: 79°F1996: 82°F1997: 83°F1998: 80°F1999: 83°F2000: 93°F2001: 72°F2002: 85°F2003: 74°F2004: 81°F2005: 82°F2006: 76°F2007: 80°F2008: 89°F2009: 71°F2010: 79°F2011: 93°F2012: 94°F2013: 88°F2014: 83°F2015: 89°F2016: 79°F2017: 71°F2018: 84°F2019: 75°F2020: 84°F2021: 82°F2022: 85°F2023: 81°F2024: 83°F2025: 78°F93° forecast6065707580859095100105191019201930194019501960197019801990200020102020
📖 Rockford's full Climate Almanac →

The Numbers

Forecast high · Sep 193°F
Hottest this date since2012
This-date record102°F
This-date rank#7 of 125
Hottest at any time since2026
All-time record112°F (1936)
Odds to tie/break0.0% (daily)
Period of record1893–2026

Record Book

The hottest and coldest ever recorded at Rockford in each calendar month, and for the whole 1893–2026 record — with the year each was set.
MonthRecord HighRecord Low
Jan63°FJan 31, 1989-31°FJan 31, 2019
Feb78°FFeb 27, 2024-25°FFeb 9, 1933
Mar85°FMar 29, 1986-11°FMar 1, 1962
Apr93°FApr 10, 19305°FApr 7, 1982
May106°FMay 31, 193424°FMay 10, 1966
Jun106°FJun 1, 193435°FJun 4, 1945
Jul112°FJul 14, 193643°FJul 31, 1918
Aug104°FAug 5, 191835°FAug 30, 1915
Sep103°FSep 7, 193924°FSep 28, 1942
Oct91°FOct 2, 19227°FOct 30, 1925
Nov81°FNov 1, 1933-10°FNov 26, 1977
Dec69°FDec 3, 2012-24°FDec 24, 1983
All-time112°FJul 14, 1936-31°FJan 31, 2019

2026 Records So Far

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

Record Highs in 2026

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

Record Lows in 2026

2 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

80°F
record high minimum — the night it never cooled · Aug 6, 1918

Coldest high ever

-14°F
record low maximum — the day it never warmed · Jan 6, 1912
MonthWarmest lowColdest high
Jan47°FJan 1, 1897-14°FJan 6, 1912
Feb48°FFeb 22, 1930-13°FFeb 2, 1996
Mar63°FMar 30, 19989°FMar 2, 2014
Apr68°FApr 5, 192928°FApr 24, 1910
May74°FMay 12, 202236°FMay 2, 1909
Jun78°FJun 3, 189550°FJun 3, 1945
Jul80°FJul 19, 201962°FJul 4, 1967
Aug80°FAug 6, 191859°FAug 5, 1915
Sep78°FSep 3, 189541°FSep 26, 1942
Oct70°FOct 1, 201925°FOct 30, 1917
Nov61°FNov 9, 202011°FNov 24, 1950
Dec58°FDec 2, 1982-11°FDec 23, 1983
All-time80°FAug 6, 1918-14°FJan 6, 1912

Hot Streaks

Current run

0 days
consecutive days with a high ≥ 90°F

Longest ever

21 days
record run, ended Aug 1 1916

So far in 2026

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

Climate Normals

Normal high & low by month, from Rockford's own 1991–2020 record. Today's normal high: 81°F · forecast is +12° vs normal.
Jan: 29°FJan: 14°FFeb: 34°FFeb: 17°FMar: 47°FMar: 28°FApr: 60°FApr: 38°FMay: 71°FMay: 49°FJun: 81°FJun: 59°FJul: 84°FJul: 63°FAug: 82°FAug: 61°FSep: 75°FSep: 53°FOct: 62°FOct: 41°FNov: 47°FNov: 30°FDec: 34°FDec: 20°FJFMAMJJASOND

Sun & Location

Sun & Daylight Today

Sunrise5:21 AM
Sunset6:31 PM
Solar noon11:56 AM
Daylight13h 09m · losing 19 min/wk
Local standard time (no DST), level horizon.

Location

42.19°N, 89.09°W

Nearby Stations

Chicago, IL61 mi EMadison, WI66 mi NMilwaukee, WI80 mi NEDubuque, IA83 mi WMoline, IL89 mi SWPeoria, IL109 mi S

The Last 6 Weeks

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

2026 So Far

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

Every Day Since 1893

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

Days Above the Mark

How many days a year hit a given high at Rockford — 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 75th most in 134 years. Normal for this point: 18. Record: 60 in 1921.

Share Card

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