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

Mount Vernon Airport (KMVN)

Lat: 38.33°NLon: 88.85°WElev: 466ft.

Overcast

50°F

10°C

Humidity 89%
Wind Speed NE 9 mph
Barometer 30.08 in (1019.2 mb)
Dewpoint 47°F (8°C)
Visibility 8.00 mi
Wind Chill46°F (8°C)
Last update 3 Mar 11:56 pm CST
Extended Forecast for

Tamaroa IL

  • Overnight

    Overnight: A slight chance of showers between 1am and 3am, then a chance of showers and thunderstorms after 3am. Cloudy, with a low around 55. South southeast wind around 6 mph becoming east. Chance of precipitation is 50%.

    Low: 55 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. High near 69. East wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 90%.

    High: 69 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 57. South wind 6 to 9 mph. Chance of precipitation is 100%.

    Low: 57 °F

    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm before noon, then a chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. High near 69. Southwest wind 7 to 11 mph. Chance of precipitation is 90%.

    High: 69 °F

    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, with thunderstorms also possible after 9pm. Mostly cloudy, with a low around 59. South wind 6 to 9 mph. Chance of precipitation is 50%.

    Low: 59 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers before noon. Partly sunny, with a high near 78. South wind 10 to 18 mph, with gusts as high as 25 mph.

    High: 78 °F

    Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: A slight chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 60. South wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

    Low: 60 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely, mainly before noon. Mostly cloudy, with a high near 69. South southwest wind 7 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.

    High: 69 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44. West northwest wind around 6 mph becoming calm in the evening.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of showers between 1am and 3am, then a chance of showers and thunderstorms after 3am. Cloudy, with a low around 55. South southeast wind around 6 mph becoming east. Chance of precipitation is 50%.
Wednesday
Showers and thunderstorms before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. High near 69. East wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 57. South wind 6 to 9 mph. Chance of precipitation is 100%.
Thursday
Showers and possibly a thunderstorm before noon, then a chance of showers between noon and 3pm, then a chance of showers and thunderstorms after 3pm. High near 69. Southwest wind 7 to 11 mph. Chance of precipitation is 90%.
Thursday Night
A chance of showers, with thunderstorms also possible after 9pm. Mostly cloudy, with a low around 59. South wind 6 to 9 mph. Chance of precipitation is 50%.
Friday
A 30 percent chance of showers before noon. Partly sunny, with a high near 78. South wind 10 to 18 mph, with gusts as high as 25 mph.
Friday Night
A slight chance of showers, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 60. South wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Saturday
Showers likely, mainly before noon. Mostly cloudy, with a high near 69. South southwest wind 7 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 44. West northwest wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 67. Light and variable wind becoming southwest 5 to 8 mph in the morning.
Sunday Night
A slight chance of showers. Mostly clear, with a low around 49. Southwest wind around 6 mph.
Monday
A slight chance of showers. Sunny, with a high near 73. South southwest wind 6 to 11 mph.
Monday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 58. South southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Tuesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 76. South southwest wind 11 to 17 mph, with gusts as high as 25 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:
9:46 pm CST Mar 3, 2026
Forecast Valid:
12am CST Mar 4, 2026-6pm CDT Mar 10, 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