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

45°F

7°C

Humidity 54%
Wind Speed S 13 mph
Barometer 30.15 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 8 Apr 8:35 am CDT
Extended Forecast for

Savanna IL

  • Today

    Today: Mostly sunny, with a high near 70. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.

    High: 70 °F

    Partly Sunny
    then Sunny
    and Breezy

  • Tonight

    Tonight: Showers and thunderstorms before 1am, then a chance of showers between 1am and 3am. Low around 44. South wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%.

    Low: 44 °F

    Showers

  • Thursday

    Thursday: Increasing clouds, with a high near 63. West wind around 5 mph.

    High: 63 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 44. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 44 °F

    Showers

  • Friday

    Friday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance
    Showers

  • Sunday

    Sunday: A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 75.

    High: 75 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 70. Breezy, with a south wind 15 to 20 mph, with gusts as high as 35 mph.
Tonight
Showers and thunderstorms before 1am, then a chance of showers between 1am and 3am. Low around 44. South wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%.
Thursday
Increasing clouds, with a high near 63. West wind around 5 mph.
Thursday Night
Showers and possibly a thunderstorm. Low around 44. Calm wind becoming northeast around 5 mph after midnight. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Partly sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 36.
Saturday
Partly sunny, with a high near 62.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 52.
Sunday
A 40 percent chance of showers after 1pm. Mostly cloudy, with a high near 75.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 62.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 78.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Tuesday
A 50 percent chance of showers. Mostly cloudy, with a high near 64.
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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:
8:11 am CDT Apr 8, 2026
Forecast Valid:
9am CDT Apr 8, 2026-6pm CDT Apr 14, 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