Bethalto, IL Weather Forecast
Madison County, Illinois
Live radar, warnings and storm tracking for Bethalto, 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 Bethalto
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Bethalto, IL at a glance
Bethalto is home to about 9,170 people in Madison County, across 7.6 square miles. It ranks 237th by population of 441 places in Illinois with a forecast here. The nearest neighbour with its own forecast is Wood River, 3 miles away.
- County
- Madison County
- Population
- 9,170 2023 est.
- Land area
- 7.6 sq mi
- People per sq mi
- 1,208
- Forecast point
- 38.9017°N, 90.0448°W
How well can the network see Bethalto?
The nearest Doppler radar is KLSX (St. Louis, MO), to the WSW. Its lowest scan passes about 2,400 ft above Bethalto. Close enough to see rotation in the low part of a storm, where tornadoes form. Bethalto is closer to its radar than 60% of US cities.
The closest weather station is KALN (Alton/St Louis Rgnl). Close enough that its readings are the conditions in town.
Forecasts near Bethalto
- Wood River, IL3 mi
- East Alton, IL4 mi
- Alton, IL6 mi
- Edwardsville, IL8 mi
- Godfrey, IL10 mi
- Glen Carbon, IL10 mi
- Pontoon Beach, IL12 mi
- Maryville, IL13 mi
Elsewhere in Illinois
ChicagoAuroraJolietNapervilleRockfordElginAll Illinois forecasts →