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

39°F

4°C

Humidity 69%
Wind Speed W 16 G 24 mph
Barometer 30.04 in
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 5 Apr 12:55 am CDT
Extended Forecast for

Savanna IL

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 36. West wind around 15 mph, with gusts as high as 25 mph.

    Low: 36 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 54. Northwest wind around 15 mph, with gusts as high as 20 mph.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers. Partly cloudy, with a low around 34. West wind 5 to 10 mph.

    Low: 34 °F

    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 48. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain and snow showers. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.

    Low: 34 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 36. West wind around 15 mph, with gusts as high as 25 mph.
Sunday
Mostly sunny, with a high near 54. Northwest wind around 15 mph, with gusts as high as 20 mph.
Sunday Night
A 20 percent chance of showers. Partly cloudy, with a low around 34. West wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 48. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
Mostly clear, with a low around 22.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 67.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 48.
Thursday
A 40 percent chance of showers. Mostly cloudy, with a high near 62.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 41.
Friday
A 50 percent chance of showers. Partly sunny, with a high near 62.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 46.
Saturday
Showers likely. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
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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:
8:06 pm CDT Apr 4, 2026
Forecast Valid:
1am CDT Apr 5, 2026-6pm CDT Apr 11, 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