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Hazardous Weather Conditions

Current conditions at

Tri-Township Airport (KSFY)

Lat: 42.05°NLon: 90.11°WElev: 614ft.

Thunderstorm in Vicinity Fog/Mist

56°F

13°C

Humidity 90%
Wind Speed W 17 G 29 mph
Barometer 29.66 in
Dewpoint 53°F (12°C)
Visibility 4.00 mi
Last update 17 Apr 10:55 pm CDT
Extended Forecast for

6 Miles NNW Lanark IL

Flood Watch until April 18, 04:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until April 18, 04:00am

    NOW until 4:00am Sat

    Flood Watch

  • Tonight

    Low: 38 °F

    Showers
    Likely and
    Breezy

  • Saturday

    Saturday: Mostly sunny, with a high near 49. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 49 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Widespread frost after 2am. Otherwise, mostly clear, with a low around 31. West wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 31 °F

    Mostly Clear
    then Frost

  • Sunday

    Sunday: Widespread frost before 8am. Otherwise, mostly sunny, with a high near 50. Southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 50 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear
    then Frost

  • Monday

    Monday: Widespread frost before 9am. Otherwise, sunny, with a high near 57.

    High: 57 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Tonight
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 38. Breezy, with a south wind 15 to 20 mph becoming north after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%.
Saturday
Mostly sunny, with a high near 49. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Widespread frost after 2am. Otherwise, mostly clear, with a low around 31. West wind 5 to 15 mph, with gusts as high as 25 mph.
Sunday
Widespread frost before 8am. Otherwise, mostly sunny, with a high near 50. Southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 28.
Monday
Widespread frost before 9am. Otherwise, sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 73.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Showers likely. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles NNW Lanark IL
 42.17°N 89.89°W (Elev. 830 ft)
Last Update:
8:32 pm CDT Apr 17, 2026
Forecast Valid:
11pm CDT Apr 17, 2026-6pm CDT Apr 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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