Weather WorldMcArthur Lake, IL 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
McArthur Lake, IL Weather Forecast
McArthur Lake, IL Weather Forecast Date: 637 AM CDT Sun Aug 23 2026
The area/counties/county of: Clay, including the city of Flora.or toggle through each period.
Today... Sunny. Highs in the lower 80s. Northwest winds 5 to 10 mph.
Tonight... Partly cloudy. Lows in the upper 50s. North winds around 5 mph in the evening, becoming light and variable.
Monday... Mostly sunny. Highs in the lower 80s. Light and variable winds.
Monday Night... Partly cloudy. Lows in the upper 50s. Light and variable winds.
Tuesday... Sunny. Highs in the lower 80s. East winds around 5 mph.
Tuesday Night... Partly cloudy. Lows in the lower 60s. Highs in the mid 80s.
Wednesday... Partly cloudy. Lows in the lower 60s. Highs in the mid 80s.
Wednesday Night... Mostly clear. Lows in the mid 60s. Highs in the mid 80s.
Thursday... Mostly clear. Lows in the mid 60s. Highs in the mid 80s.
Friday... Mostly clear. Lows in the mid 60s. Highs in the mid 80s.
POP = Probability of Precipitation
McArthur Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...