174 places in Quad Cities, IA/IL area, Illinois, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
Quad Cities, IA/IL area has 174 places on myweatherrock (108 villages, 34 cities, 29 census-designated places, 3 towns), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 113°F at Aledo on July 15, 1936. The coldest night is -38°F at Mt Carroll on January 31, 2019. The wettest day brought 10.25 inches of rain at La Harpe on June 10, 1905. The biggest single-day snow measured 20 inches at Illinois City Dam 16 on February 2, 2011. Those are station measurements from NOAA's daily records, 1866 to 2026, not official state records. By area the largest place is Rock Island, about 18 square miles.
About Quad Cities, IA/IL area weather
The map on the Now tab shows every Quad Cities, IA/IL area town's current temperature from our own server, one dot per town. Tap any dot, or type a town above, for that town's full forecast.
What the weather is usually like
Across the 174 Quad Cities, IA/IL area towns with station normals, the warmest month is July, when the day usually reaches 85°F, and the coldest is January, when the night usually falls to 14°F. May is the wettest, with rain on about 12 days. July afternoons run from about 82°F in Apple River to 87°F in Augusta. January nights run from about 10°F in Apple Canyon Lake to 18°F in Dallas.
Means of the 1991 to 2020 station normals serving these towns, as published by NOAA; each town's page carries its own.
Where these numbers come from
Current conditions and forecast: NOAA forecast grids decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
Records: computed by myweatherrock from NOAA GHCN-Daily station records at the stations serving these towns. Measurements, not estimates.
Warnings and alerts: the National Weather Service, passed through unchanged.
Quad Cities, IA/IL area weather records
Hottest day
113°F
Aledo, July 15, 1936
Coldest night
-38°F
Mt Carroll, January 31, 2019
Wettest day
10.25 in
La Harpe, June 10, 1905
Biggest snow
20 in
Illinois City Dam 16, February 2, 2011
Measured at the NOAA stations serving these towns, daily records 1866 to 2026. Station extremes, not official state records.
Common questions about Quad Cities, IA/IL area weather
What is the hottest temperature recorded at a Quad Cities, IA/IL area station?
113°F at Aledo on July 15, 1936, in the NOAA daily station records myweatherrock holds (1866 to 2026).
What is the coldest temperature recorded at a Quad Cities, IA/IL area station?
-38°F at Mt Carroll on January 31, 2019.
What is the most rain a Quad Cities, IA/IL area station has measured in one day?
10.25 inches at La Harpe on June 10, 1905.
What is the biggest one-day snowfall at a Quad Cities, IA/IL area station?
20 inches at Illinois City Dam 16 on February 2, 2011.
How many Quad Cities, IA/IL area towns have a weather page here?
174: 108 villages, 34 cities, 29 census-designated places, 3 towns. Each page carries current conditions, the hourly timeline, the ten day outlook, radar, and where a station sits close enough, measured records.
Where does the Quad Cities, IA/IL area forecast come from?
NOAA forecast grids (the National Weather Service digital forecast, the National Blend of Models, HRRR and GFS) decoded on our own server, corrected against the nearest reporting station and our own radar. Open-Meteo is consulted only as a fallback when our server is silent.
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