Weather World
City of Monmouth, ILMonmouth, IL 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Monmouth, IL Weather Forecast
Monmouth, IL Weather Forecast Date: 546 AM CDT Thu Sep 24 2026
The area/counties/county of: Warren, including the city of Monmouth.or toggle through each period.
Today... Mostly cloudy. Highs in the lower 70s. Northeast winds around 5 mph.
Tonight... Mostly cloudy. A slight chance of showers after midnight. Lows in the upper 50s. East winds around 5 mph. Chance of rain 20%.
Friday... Mostly cloudy with a 30% chance of showers. Highs around 70. East winds around 5 mph.
Friday Night... Mostly cloudy. Lows in the upper 50s. East winds around 5 mph.
Saturday... Mostly cloudy. A chance of showers in the afternoon. Highs in the mid 60s. Southeast winds around 5 mph. Chance of rain 50%.
Saturday Night... Cloudy. A chance of showers after midnight. Lows in the upper 50s. Chance of rain 50%.
Sunday... Mostly cloudy in the morning, then becoming partly sunny. Highs in the upper 60s.
Sunday Night... Partly cloudy. Lows in the mid 50s. Highs in the lower 70s.
Monday... Partly cloudy. Lows in the mid 50s. Highs in the lower 70s.
Monday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s.
Tuesday... Partly sunny with a chance of showers in the morning, then mostly cloudy with a chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 50%.
Tuesday Night... Showers likely. Lows in the lower 60s. Highs around 70. Chance of rain 70%.
POP = Probability of Precipitation
Monmouth Radar Loop
Use the map search tool if you want to place a location marker on the radar map...