Madison, IL Weather Forecast
Madison County, Illinois
Live radar, warnings and storm tracking for Madison, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Madison
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Madison, IL at a glance
Madison is home to about 3,065 people in Madison County, across 14 square miles. It ranks 411th by population of 441 places in Illinois with a forecast here. The nearest neighbour with its own forecast is Pontoon Beach, 3 miles away.
- County
- Madison County
- Population
- 3,065 2023 est.
- Land area
- 14 sq mi
- People per sq mi
- 217
- Forecast point
- 38.6863°N, 90.1018°W
How well can the network see Madison?
The nearest Doppler radar is KLSX (St. Louis, MO), to the W. Its lowest scan passes about 1,900 ft above Madison. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Madison show up clearly. Madison is closer to its radar than 69% of US cities.
The closest weather station is KCPS (St Louis/Downtown Arpt). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Madison
Elsewhere in Illinois
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