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.

Overcast

44°F

7°C

Humidity 84%
Wind Speed W 13 mph
Barometer 29.92 in
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 3 Apr 3:35 am CDT
Extended Forecast for

Savanna IL

  • Today

    Today: A slight chance of showers, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 62. Light and variable wind becoming east 5 to 10 mph in the afternoon. Chance of precipitation is 30%.

    High: 62 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms, mainly before 3am. Some of the storms could produce heavy rainfall. Low around 43. East wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 43 °F

    Heavy Rain

  • Saturday

    Saturday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a steady temperature around 46. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 46 °F

    Cloudy then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 33. West wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 33 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of showers, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 62. Light and variable wind becoming east 5 to 10 mph in the afternoon. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms, mainly before 3am. Some of the storms could produce heavy rainfall. Low around 43. East wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a steady temperature around 46. West wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday Night
Mostly cloudy, with a low around 33. West wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 34.
Monday
Mostly sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 24.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
A chance of rain and snow showers after 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 65.
Wednesday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 47.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 63.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Savanna IL
 42.09°N 90.13°W (Elev. 623 ft)
Last Update:
5:06 am CDT Apr 3, 2026
Forecast Valid:
5am CDT Apr 3, 2026-6pm CDT Apr 9, 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