Weather World
City of Hamilton, ILHamilton, IL 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Hamilton, IL Weather Forecast
Hamilton, IL Weather Forecast Date: 836 PM CDT Thu Sep 03 2026
The area/counties/county of: Hancock, including the city of Carthage.or toggle through each period.
Tonight... Clear. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 105 early this evening.
Friday... Sunny, hot with highs in the mid 90s. Southwest winds 5 to 10 mph. Heat index values up to 106.
Friday Night... Partly cloudy in the evening, then becoming mostly clear. Humid with lows in the lower 70s. Southwest winds around 5 mph. Heat index values up to 104 early in the evening.
Saturday... Sunny, hot with highs in the mid 90s. West winds around 5 mph, becoming north around 5 mph in the afternoon. Heat index values up to 106.
Saturday Night... Mostly clear. Humid with lows around 70. Northeast winds around 5 mph. Heat index values up to 104 early in the evening.
Sunday... Mostly clear. Highs in the upper 80s. Lows in the upper 60s.
Sunday Night... Mostly clear. Highs in the upper 80s. Lows in the upper 60s.
Labor Day... Mostly sunny. Highs in the upper 80s.
Monday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 60s.
Tuesday... Mostly sunny. Hot with highs in the mid 90s.
Tuesday Night... Mostly clear. Lows in the mid 70s.
Wednesday... Mostly sunny. Hot with highs in the mid 90s.
Wednesday Night... Partly cloudy. A chance of showers after midnight. Lows in the lower 70s. Chance of rain 30%.
POP = Probability of Precipitation
Hamilton Radar Loop
Use the map search tool if you want to place a location marker on the radar map...