Areas of Excessive Rainfall and Severe Thunderstorms Today

Heavy to excessive rainfall from thunderstorms may bring areas of flooding today across parts of Texas, the Southeast U.S., and the lower Ohio Valley. Severe thunderstorms with large hail, damaging wind gusts, and a couple tornadoes are expected this afternoon and evening across parts of west and southwest Texas. Read More >

Current conditions at

Tri-Township Airport (KSFY)

Lat: 42.05°NLon: 90.11°WElev: 614ft.

Fair

85°F

29°C

Humidity 33%
Wind Speed SW 7 mph
Barometer 30.00 in
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 26 May 1:55 pm CDT
Extended Forecast for

Lanark IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 87. South wind around 10 mph.

    High: 87 °F

    Partly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 59. South wind around 5 mph becoming calm  in the evening.

    Low: 59 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers between 2pm and 4pm.  Sunny, with a high near 89. Calm wind becoming north around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 89 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 87. South wind around 10 mph.
Tonight
Partly cloudy, with a low around 59. South wind around 5 mph becoming calm in the evening.
Wednesday
A slight chance of showers between 2pm and 4pm. Sunny, with a high near 89. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 57. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 51.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Lanark IL
 42.11°N 89.83°W (Elev. 883 ft)
1:26 pm CDT May 26, 2026
2pm CDT May 26, 2026-6pm CDT Jun 1, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database