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

53°F

12°C

Humidity 55%
Wind Speed NW 6 mph
Barometer 30.16 in
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Wind Chill51°F (11°C)
Last update 9 Apr 9:35 am CDT
Extended Forecast for

Savanna IL

  • Today

    Today: A 10 percent chance of showers after 5pm. Increasing clouds, with a high near 65. West wind around 5 mph.

    High: 65 °F

    Sunny then
    Slight Chance
    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 3am, then showers likely. Low around 43. Calm wind becoming northeast around 5 mph in the evening. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 43 °F

    Showers

  • Friday

    Friday: A 30 percent chance of showers, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 59. North wind around 5 mph.

    High: 59 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 36. North wind around 5 mph becoming calm.

    Low: 36 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 59.

    High: 59 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.

    High: 73 °F

    Chance
    Showers then
    Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.

    Low: 61 °F

    Showers
    Likely

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 30%.

    High: 78 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
A 10 percent chance of showers after 5pm. Increasing clouds, with a high near 65. West wind around 5 mph.
Tonight
Showers and thunderstorms before 3am, then showers likely. Low around 43. Calm wind becoming northeast around 5 mph in the evening. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Friday
A 30 percent chance of showers, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 59. North wind around 5 mph.
Friday Night
Mostly clear, with a low around 36. North wind around 5 mph becoming calm.
Saturday
Partly sunny, with a high near 59.
Saturday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 51.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61. Chance of precipitation is 70%.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 30%.
Monday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 63. Chance of precipitation is 60%.
Tuesday
Showers and possibly a thunderstorm. High near 75. Chance of precipitation is 80%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 65.
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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:
9:32 am CDT Apr 9, 2026
Forecast Valid:
9am CDT Apr 9, 2026-6pm CDT Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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