Chatham, IL Weather Forecast
Sangamon County, Illinois
Live radar, warnings and storm tracking for Chatham, 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 Chatham
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Chatham, IL at a glance
Chatham is home to about 14,525 people in Sangamon County, across 7.4 square miles. It ranks 167th by population of 441 places in Illinois with a forecast here. The nearest neighbour with its own forecast is Auburn, 7 miles away.
- County
- Sangamon County
- Population
- 14,525 2023 est.
- Land area
- 7.4 sq mi
- People per sq mi
- 1,961
- Forecast point
- 39.6745°N, 89.6933°W
How well can the network see Chatham?
The nearest Doppler radar is KILX (Lincoln, IL), to the NNE. Its lowest scan passes about 2,500 ft above Chatham. Close enough to see rotation in the low part of a storm, where tornadoes form. Chatham is closer to its radar than 59% of US cities.
The closest weather station is KSPI (Springfield/Lincoln Capital Arpt). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Chatham
- Auburn, IL7 mi
- Pawnee, IL8 mi
- Rochester, IL8 mi
- Springfield, IL8 mi
- Virden, IL12 mi
- Riverton, IL14 mi
- Sherman, IL16 mi
- Taylorville, IL22 mi
Elsewhere in Illinois
ChicagoAuroraJolietNapervilleRockfordElginAll Illinois forecasts →