Severe Thunderstorms in the Southern Plains; Heavy to Excessive Rainfall in South Central Texas

Widespread rain may produce flash flooding across the Southern Plains into the Ozarks today. Numerous instances of flash flooding are expected in south-central Texas, including the Hill Country. There will also be a risk of isolated severe thunderstorms across the southern Plains today, where an instance or two of severe wind, hail, or a brief tornado may occur. Read More >

Hazardous Weather Conditions

Current conditions at

Effingham, Effingham County Memorial Airport (K1H2)

Lat: 39.07°NLon: 88.53°WElev: 587ft.

Fog/Mist

49°F

9°C

Humidity 97%
Wind Speed E 3 mph
Barometer 30.09 in
Dewpoint 49°F (9°C)
Visibility 3.00 mi
Last update 20 Nov 11:35 am CST
Extended Forecast for

Altamont IL

  • Today

    Today: A slight chance of rain before noon, then patchy drizzle between noon and 2pm, then a slight chance of rain after 2pm.  Cloudy, with a high near 53. Southeast wind 3 to 7 mph.  Chance of precipitation is 20%.

    High: 53 °F

    Patchy
    Drizzle

  • Tonight

    Tonight: Rain likely, mainly after 3am.  Patchy fog after 9pm.  Otherwise, cloudy, with a low around 50. Light southeast wind.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Chance Rain
    and Patchy
    Fog then Rain
    Likely and
    Patchy Fog

  • Friday

    Friday: Rain.  Areas of fog before 3pm, then patchy fog after 4pm. High near 56. East wind 5 to 9 mph becoming north northeast in the afternoon. Winds could gust as high as 16 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 56 °F

    Rain and
    Areas Fog

  • Friday Night

    Friday Night: A 50 percent chance of rain before midnight.  Mostly cloudy, with a low around 42. North northeast wind around 7 mph.

    Low: 42 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 55. North northeast wind 3 to 6 mph.

    High: 55 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 60. Calm wind becoming southwest around 6 mph.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Monday

    Monday: A 40 percent chance of rain.  Mostly cloudy, with a high near 57.

    High: 57 °F

    Chance Rain

Detailed Forecast

Today
A slight chance of rain before noon, then patchy drizzle between noon and 2pm, then a slight chance of rain after 2pm. Cloudy, with a high near 53. Southeast wind 3 to 7 mph. Chance of precipitation is 20%.
Tonight
Rain likely, mainly after 3am. Patchy fog after 9pm. Otherwise, cloudy, with a low around 50. Light southeast wind. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain. Areas of fog before 3pm, then patchy fog after 4pm. High near 56. East wind 5 to 9 mph becoming north northeast in the afternoon. Winds could gust as high as 16 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
A 50 percent chance of rain before midnight. Mostly cloudy, with a low around 42. North northeast wind around 7 mph.
Saturday
Mostly sunny, with a high near 55. North northeast wind 3 to 6 mph.
Saturday Night
Mostly clear, with a low around 36. Calm wind.
Sunday
Mostly sunny, with a high near 60. Calm wind becoming southwest around 6 mph.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
A 40 percent chance of rain. Mostly cloudy, with a high near 57.
Monday Night
Rain likely. Cloudy, with a low around 46. Chance of precipitation is 70%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 58.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
Altamont IL
 39.06°N 88.76°W (Elev. 636 ft)
10:26 am CST Nov 20, 2025
11am CST Nov 20, 2025-6pm CST Nov 26, 2025
 
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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