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

44°F

7°C

Humidity 70%
Wind Speed NW 14 mph
Barometer 30.19 in
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 6 Apr 3:15 am CDT
Extended Forecast for

Savanna IL

  • Overnight

    Overnight: Mostly clear, with a low around 34. Northwest wind around 5 mph.

    Low: 34 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 49. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 49 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24. North wind 5 to 10 mph.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 45. Northeast wind around 5 mph becoming southeast in the afternoon.

    High: 45 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain showers before 10pm, then a chance of snow showers between 10pm and 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.

    Low: 35 °F

    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Wednesday

    Wednesday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Showers likely. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely

  • Thursday

    Thursday: A 50 percent chance of showers. Mostly cloudy, with a high near 64.

    High: 64 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 34. Northwest wind around 5 mph.
Monday
Mostly sunny, with a high near 49. Northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 24. North wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 45. Northeast wind around 5 mph becoming southeast in the afternoon.
Tuesday Night
A chance of rain showers before 10pm, then a chance of snow showers between 10pm and 1am. Mostly cloudy, with a low around 35. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 66.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers. Mostly cloudy, with a high near 64.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 44.
Friday
Mostly sunny, with a high near 62.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 42.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 63.
Saturday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 53.
Sunday
Showers likely. Mostly cloudy, with a high near 76. 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:
1:26 am CDT Apr 6, 2026
Forecast Valid:
3am CDT Apr 6, 2026-6pm CDT Apr 12, 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