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

28°F

-2°C

Humidity 61%
Wind Speed NE 8 mph
Barometer 30.51 in
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 7 Apr 7:15 am CDT
Extended Forecast for

Savanna IL

  • Today

    Today: Sunny, with a high near 46. Northeast wind 5 to 10 mph becoming southeast in the afternoon.

    High: 46 °F

    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers, mainly before 2am. Mostly cloudy, with a low around 36. Southeast wind 5 to 10 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A 20 percent chance of showers after 1pm. Partly sunny, with a high near 68. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 68 °F

    Breezy.
    Partly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers after 1am. Mostly cloudy, with a low around 46. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.

    Low: 46 °F

    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm. Low around 44. Chance of precipitation is 80%. 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 60.

    High: 60 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 1pm. Partly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 46. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Tonight
A 30 percent chance of showers, mainly before 2am. Mostly cloudy, with a low around 36. Southeast wind 5 to 10 mph, with gusts as high as 25 mph.
Wednesday
A 20 percent chance of showers after 1pm. Partly sunny, with a high near 68. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Wednesday Night
Showers likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers after 1am. Mostly cloudy, with a low around 46. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Thursday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 64.
Thursday Night
Showers and possibly a thunderstorm. Low around 44. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
Partly sunny, with a high near 60.
Friday Night
Partly cloudy, with a low around 38.
Saturday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 63.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 52.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 74.
Sunday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 60.
Monday
A 50 percent chance of showers. Partly sunny, with a high near 78.
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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:
5:56 am CDT Apr 7, 2026
Forecast Valid:
7am CDT Apr 7, 2026-6pm CDT Apr 13, 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