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

Hazardous Weather Conditions

Current conditions at

Tri-Township Airport (KSFY)

Lat: 42.05°NLon: 90.11°WElev: 614ft.

Fair

34°F

1°C

Humidity 57%
Wind Speed NW 14 G 18 mph
Barometer 30.60 in
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 27 Mar 11:15 pm CDT
Extended Forecast for

Savanna IL

  • Tonight

    Tonight: Clear, with a low around 22. Northwest wind around 5 mph becoming calm after midnight.

    Low: 22 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 51. Light southwest wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 65. South wind 5 to 10 mph.

    High: 65 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 61.

    Low: 61 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely, mainly after 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.

    High: 73 °F

    Chance Rain
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.

    Low: 35 °F

    Rain Likely

Detailed Forecast

Tonight
Clear, with a low around 22. Northwest wind around 5 mph becoming calm after midnight.
Saturday
Sunny, with a high near 51. Light southwest wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 37. South wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 65. South wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Mostly sunny, with a high near 77.
Monday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 61.
Tuesday
Rain likely, mainly after 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Tuesday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of rain after 1pm. Partly sunny, with a high near 49.
Wednesday Night
A chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 40%.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 48. Chance of precipitation is 40%.
Thursday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 37.
Friday
A 30 percent chance of rain. Partly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Savanna IL
 42.09°N 90.13°W (Elev. 623 ft)
Last Update:
7:56 pm CDT Mar 27, 2026
Forecast Valid:
11pm CDT Mar 27, 2026-6pm CDT Apr 3, 2026
 
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