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 >

Hazardous Weather Conditions

Current conditions at

Pontiac Municipal Airport (KPNT)

Lat: 40.92°NLon: 88.62°WElev: 650ft.

Fair

70°F

21°C

Humidity 100%
Wind Speed SW 6 mph
Barometer 29.96 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 19 Aug 1:15 am CDT
Extended Forecast for

Ransom IL

  • Overnight

    Overnight: A 20 percent chance of showers before 2am.  Patchy fog.  Otherwise, mostly cloudy, with a low around 68. West southwest wind around 5 mph.

    Low: 68 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Wednesday

    Wednesday: A 20 percent chance of showers after 1pm.  Areas of fog before 9am.  Otherwise, mostly cloudy, with a high near 80. West wind around 5 mph becoming north in the afternoon.

    High: 80 °F

    Areas Fog
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 63. Northeast wind around 5 mph.

    Low: 63 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 80. North wind around 5 mph becoming calm.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 65.

    Low: 65 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers before 2am. Patchy fog. Otherwise, mostly cloudy, with a low around 68. West southwest wind around 5 mph.
Wednesday
A 20 percent chance of showers after 1pm. Areas of fog before 9am. Otherwise, mostly cloudy, with a high near 80. West wind around 5 mph becoming north in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 63. Northeast wind around 5 mph.
Thursday
Sunny, with a high near 80. North wind around 5 mph becoming calm.
Thursday Night
Mostly clear, with a low around 62. Calm wind.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 80.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 65.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 60.
Monday
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Ransom IL
 41.15°N 88.66°W
1:21 am CDT Aug 19, 2026
1am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
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Additional Resources

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