Weather World
Harmony, IL 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Harmony, IL Weather Forecast
Harmony, IL Weather Forecast Date: 126 AM CDT Sat Sep 05 2026
The area/counties/county of: Hancock, including the city of Carthage.or toggle through each period.
Rest of Tonight... Mostly clear. Near steady temperature in the mid 70s. Southwest winds around 5 mph.
Saturday... Sunny, hot with highs in the mid 90s. Northwest winds 5 to 10 mph. Heat index values up to 108 in the afternoon.
Saturday Night... Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 60s. Northeast winds 5 to 10 mph. Heat index values up to 106 early in the evening.
Sunday... Mostly sunny. Humid with highs in the upper 80s. East winds 5 to 10 mph.
Sunday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 60s. East winds 5 to 10 mph.
Labor Day... Sunny. Highs in the upper 80s.
Monday Night... Partly cloudy. Hot. Lows in the mid 60s. Highs in the mid 90s.
Tuesday... Partly cloudy. Hot. Lows in the mid 60s. Highs in the mid 90s.
Tuesday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 70s.
Wednesday... Mostly sunny. Hot with highs in the lower 90s.
Wednesday Night... Partly cloudy. A chance of showers after midnight. Lows in the mid 60s. Chance of rain 40%.
Thursday... Mostly sunny. Highs in the mid 80s.
Thursday Night... Mostly clear. Lows in the mid 60s.
POP = Probability of Precipitation
Harmony Radar Loop
Use the map search tool if you want to place a location marker on the radar map...