Weather World
Nason Public Use Area, IL 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Nason Public Use Area, IL Weather Forecast
Nason Public Use Area, IL Weather Forecast Date: 337 AM CDT Wed Aug 05 2026
The area/counties/county of: Jefferson, including the city of Mount Vernon.or toggle through each period.
Today... Sunny. Highs around 90. South winds around 5 mph.
Tonight... Partly cloudy in the evening, then mostly cloudy with a slight chance of showers and thunderstorms after midnight. Lows around 70. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 20%.
Thursday... Mostly cloudy. A chance of showers and thunderstorms in the morning. Highs in the mid 80s. Southwest winds around 5 mph. Chance of rain 50%.
Thursday Night... Partly cloudy in the evening, then mostly cloudy with showers likely with a chance of thunderstorms after midnight. Lows in the lower 70s. South winds around 5 mph in the evening, becoming light and variable. Chance of rain 70%.
Friday... A chance of thunderstorms. A chance of showers in the morning, then showers likely in the afternoon. Highs in the upper 80s. Southwest winds around 5 mph. Chance of rain 70%.
Friday Night... Showers likely with a chance of thunderstorms. Lows around 70. Chance of rain 60%.
Saturday... Mostly sunny. Highs in the upper 80s.
Saturday Night... Mostly clear. Lows in the lower 70s. Highs in the lower 90s.
Sunday... Mostly clear. Lows in the lower 70s. Highs in the lower 90s.
Monday... Mostly clear. Lows in the lower 70s. Highs in the lower 90s.
POP = Probability of Precipitation
Nason Public Use Area Radar Loop
Use the map search tool if you want to place a location marker on the radar map...