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

Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Hazardous Weather Conditions

Current conditions at

Sterling Rockfalls (KSQI)

Lat: 41.74°NLon: 89.67°WElev: 643ft.

Fog/Mist

40°F

4°C

Humidity 100%
Wind Speed Calm
Barometer 30.07 in (1018.6 mb)
Dewpoint 40°F (4°C)
Visibility 2.00 mi
Last update 21 Nov 6:56 am CST
Extended Forecast for

5 Miles NNW Lanark IL

  • Today

    Today: Mostly cloudy, with a high near 47. North wind around 5 mph.

    High: 47 °F

    Mostly Cloudy

  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 27. North wind around 5 mph becoming calm after midnight.

    Low: 27 °F

    Gradual
    Clearing

  • Saturday

    Saturday: Mostly sunny, with a high near 51. Light and variable wind becoming southwest 5 to 10 mph in the morning.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 31. Southwest wind around 5 mph becoming northwest after midnight.

    Low: 31 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Monday

    Monday: A 40 percent chance of rain after noon. Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy
    then Chance
    Rain

  • Monday Night

    Monday Night: Rain. Low around 43. Chance of precipitation is 80%.

    Low: 43 °F

    Rain

  • Tuesday

    Tuesday: A 30 percent chance of rain. Mostly cloudy, with a high near 54.

    High: 54 °F

    Chance Rain

Detailed Forecast

Today
Mostly cloudy, with a high near 47. North wind around 5 mph.
Tonight
Cloudy during the early evening, then gradual clearing, with a low around 27. North wind around 5 mph becoming calm after midnight.
Saturday
Mostly sunny, with a high near 51. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Saturday Night
Mostly clear, with a low around 31. Southwest wind around 5 mph becoming northwest after midnight.
Sunday
Sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 36.
Monday
A 40 percent chance of rain after noon. Mostly cloudy, with a high near 54.
Monday Night
Rain. Low around 43. Chance of precipitation is 80%.
Tuesday
A 30 percent chance of rain. Mostly cloudy, with a high near 54.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Partly sunny, with a high near 40.
Wednesday Night
Mostly cloudy, with a low around 21.
Thanksgiving Day
Mostly sunny, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Lanark IL
 42.17°N 89.86°W (Elev. 801 ft)
Last Update:
5:56 am CST Nov 21, 2025
Forecast Valid:
7am CST Nov 21, 2025-6pm CST Nov 27, 2025
 
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