Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Sparta Community-Hunter Field Airport (KSAR)

Lat: 38.15°NLon: 89.7°WElev: 528ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

2 Miles SE Marissa IL

  • Overnight

    Overnight: Showers and possibly a thunderstorm.  Low around 71. Calm wind.  Chance of precipitation is 80%.

    Low: 71 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 11am, then scattered showers and thunderstorms, mainly between 11am and 1pm.  High near 81. West wind around 5 mph becoming calm  in the afternoon.  Chance of precipitation is 80%.

    High: 81 °F

    Showers then
    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, mainly before 1am.  Mostly cloudy, with a low around 67. Calm wind.  Chance of precipitation is 60%.

    Low: 67 °F

    T-storms
    Likely

  • Thursday

    Thursday: Mostly cloudy through mid morning, then gradual clearing, with a high near 82. Calm wind becoming north around 5 mph.

    High: 82 °F

    Becoming
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 71. Calm wind. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm before 11am, then scattered showers and thunderstorms, mainly between 11am and 1pm. High near 81. West wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 80%.
Wednesday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 60%.
Thursday
Mostly cloudy through mid morning, then gradual clearing, with a high near 82. Calm wind becoming north around 5 mph.
Thursday Night
Mostly clear, with a low around 65. Calm wind.
Friday
Sunny, with a high near 85.
Friday Night
Mostly clear, with a low around 66.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 65.
Sunday
Mostly sunny, with a high near 82.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 64.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Marissa IL
 38.23°N 89.74°W (Elev. 495 ft)
4:21 am CDT Aug 19, 2026
4am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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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