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

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78°NLon: 89.25°WElev: 400ft.

Overcast

43°F

6°C

Humidity 100%
Wind Speed Calm
Barometer 30.03 in (1016.9 mb)
Dewpoint 43°F (6°C)
Visibility 9.00 mi
Last update 2 May 3:52 am CDT
Extended Forecast for

Tamaroa IL

  • Overnight

    Overnight: A chance of sprinkles. Mostly cloudy, with a steady temperature around 45. Calm wind.

    Low: 45 °F

    Chance
    Sprinkles

  • Saturday

    Saturday: A chance of rain and thunderstorms before 4pm, then a slight chance of showers between 4pm and 5pm, then a chance of rain after 5pm. Partly sunny, with a high near 61. Light and variable wind becoming north 5 to 10 mph in the morning. Chance of precipitation is 20%.

    High: 61 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 38. North northwest wind around 6 mph becoming calm in the evening.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 70. South southwest wind 6 to 16 mph, with gusts as high as 23 mph.

    High: 70 °F

    Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54. South southwest wind 8 to 13 mph, with gusts as high as 20 mph.

    Low: 54 °F

    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 79. South southwest wind 9 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    High: 79 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 58. South southwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

    Low: 58 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. Mostly cloudy, with a high near 70. South wind 11 to 16 mph, with gusts as high as 23 mph.

    High: 70 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm. Mostly cloudy, with a low around 49. Southwest wind 10 to 17 mph becoming north after midnight. Winds could gust as high as 23 mph.

    Low: 49 °F

    Showers

Detailed Forecast

Overnight
A chance of sprinkles. Mostly cloudy, with a steady temperature around 45. Calm wind.
Saturday
A chance of rain and thunderstorms before 4pm, then a slight chance of showers between 4pm and 5pm, then a chance of rain after 5pm. Partly sunny, with a high near 61. Light and variable wind becoming north 5 to 10 mph in the morning. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 38. North northwest wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 70. South southwest wind 6 to 16 mph, with gusts as high as 23 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54. South southwest wind 8 to 13 mph, with gusts as high as 20 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 79. South southwest wind 9 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 58. South southwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Tuesday
Showers and possibly a thunderstorm. Mostly cloudy, with a high near 70. South wind 11 to 16 mph, with gusts as high as 23 mph.
Tuesday Night
Showers and possibly a thunderstorm. Mostly cloudy, with a low around 49. Southwest wind 10 to 17 mph becoming north after midnight. Winds could gust as high as 23 mph.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 60. North northeast wind around 9 mph.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 44. North wind around 9 mph.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 63. Northwest wind 9 to 14 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 43. West northwest wind 5 to 7 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 70. Southwest wind 6 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:
2:01 am CDT May 2, 2026
Forecast Valid:
4am CDT May 2, 2026-6pm CDT May 8, 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