Madison County weather, town by town
32 places in Madison County, Illinois, each with its own live forecast and radar, and where a station sits close enough, measured weather records.
A
B
C
E
G
H
L
M
N
P
R
S
T
V
W
Not your town? Type it above, or pick it below.
Measured at the NOAA stations serving these towns, daily records 1892 to 2026. Station extremes, not official state records.
Madison County Weather Facts
Madison County has 32 places on myweatherrock (18 villages, 9 cities, 5 census-designated places), each with its own live forecast, hourly timeline, ten day outlook and radar. The hottest day in the station records is 116°F at Alton - Melvin Price LandD on July 10, 1946. The coldest night is -27°F at Belleville Siu Rsch on January 17, 1977. The wettest day brought 8.73 inches of rain at St Louis Sci Ctr on July 26, 2022. The biggest single-day snow measured 15 inches at Edwardsville 2 W on January 31, 1982. Those are station measurements from NOAA's daily records, 1892 to 2026, not official state records. By area the largest place is Godfrey, about 34 square miles.
About Madison County weather
The map on the Now tab shows every Madison County 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 32 Madison County towns with station normals, the warmest month is July, when the day usually reaches 88°F, and the coldest is January, when the night usually falls to 23°F. May is the wettest, with rain on about 11 days. July afternoons run from about 87°F in Alhambra to 90°F in Highland. January nights run from about 21°F in Grantfork to 24°F in Collinsville.
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.
Madison County weather records
Measured at the NOAA stations serving these towns, daily records 1892 to 2026. Station extremes, not official state records.
Common questions about Madison County weather
- What is the hottest temperature recorded at a Madison County station?
- 116°F at Alton - Melvin Price LandD on July 10, 1946, in the NOAA daily station records myweatherrock holds (1892 to 2026).
- What is the coldest temperature recorded at a Madison County station?
- -27°F at Belleville Siu Rsch on January 17, 1977.
- What is the most rain a Madison County station has measured in one day?
- 8.73 inches at St Louis Sci Ctr on July 26, 2022.
- What is the biggest one-day snowfall at a Madison County station?
- 15 inches at Edwardsville 2 W on January 31, 1982.
- How many Madison County towns have a weather page here?
- 32: 18 villages, 9 cities, 5 census-designated places. 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 Madison County 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.
Live radar
Current details
Water
Next few days
Hourly forecast
10-day forecast
The Rocktionary: every weather term, explained by a rock
Rockreation: pick a game
All records live on this device. The rock keeps no receipts. You keep them.
The weather you throw is whatever is outside right now.
A new Rocktoid every midnight. The rock reads a lot.
The rock's instrument panel
Remote Rocks: station a rock anywhere you love
Put a rock in Mom's yard, the lake house, a kid's college town. Each one stands in that sky and reports it here. Tap a rock for its forecast; the pencil renames it.
Tap me on the shoulder turns on browser notifications: when a warning or watch lands on one of your rocks, you get a notification, as long as the site is open in a tab somewhere.
Remote Rocks live on this device. We do not track you, so a rock you station on your phone will not appear on your computer or tablet, and the other way around. That is the privacy working, not a bug. Forecasts and alerts travel from here straight to the weather services, same as always.
Settings
Build