National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Overcast

69°F

21°C

Humidity 90%
Wind Speed E 3 mph
Barometer 30.01 in
Dewpoint 66°F (19°C)
Visibility 8.00 mi
Last update 23 May 6:56 pm CDT
Extended Forecast for

Tamaroa IL

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 80. Calm wind. Chance of precipitation is 70%.

    High: 80 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 62. Calm wind.

    Low: 62 °F

    Increasing
    Clouds

  • Memorial Day

    Memorial Day: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Calm wind becoming east around 6 mph in the morning. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Showers likely, mainly after 1am. Mostly cloudy, with a low around 65. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 65 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers, with thunderstorms also possible after 10am. High near 79. East wind 3 to 7 mph. Chance of precipitation is 80%.

    High: 79 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Southeast wind 5 to 7 mph. Chance of precipitation is 60%.

    Low: 66 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. South wind 5 to 7 mph.

    High: 82 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 61. Calm wind.
Sunday
Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 80. Calm wind. Chance of precipitation is 70%.
Sunday Night
Increasing clouds, with a low around 62. Calm wind.
Memorial Day
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 80. Calm wind becoming east around 6 mph in the morning. Chance of precipitation is 30%.
Monday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 65. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Tuesday
Showers, with thunderstorms also possible after 10am. High near 79. East wind 3 to 7 mph. Chance of precipitation is 80%.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Southeast wind 5 to 7 mph. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. South wind 5 to 7 mph.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67. South wind around 5 mph becoming calm in the evening.
Thursday
A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84. Light southeast wind.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Light east northeast wind.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 79. East northeast wind 6 to 9 mph.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 61. East northeast wind around 8 mph.
Saturday
A slight chance of showers. Mostly sunny, with a high near 78. East northeast wind 8 to 11 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Tamaroa IL
 38.14°N 89.24°W
Last Update:
5:31 pm CDT May 23, 2026
Forecast Valid:
7pm CDT May 23, 2026-6pm CDT May 30, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation