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 94%
Wind Speed Calm
Barometer 29.98 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 19 Jun 5:55 am CDT
Extended Forecast for

Savanna IL

  • Juneteenth

    Juneteenth: Sunny, with a high near 78. Calm wind becoming west around 5 mph in the morning.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am. Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West wind around 5 mph. Chance of precipitation is 50%.

    Low: 57 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 80. West wind around 5 mph.

    High: 80 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers after 1am. Increasing clouds, with a low around 58. Northwest wind around 5 mph becoming calm.

    Low: 58 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 1pm. High near 72. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    High: 72 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely, mainly before 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 55 °F

    Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Juneteenth
Sunny, with a high near 78. Calm wind becoming west around 5 mph in the morning.
Tonight
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am. Mostly cloudy, then gradually becoming mostly clear, with a low around 57. West wind around 5 mph. Chance of precipitation is 50%.
Saturday
Sunny, with a high near 80. West wind around 5 mph.
Saturday Night
A 20 percent chance of showers after 1am. Increasing clouds, with a low around 58. Northwest wind around 5 mph becoming calm.
Sunday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 72. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Sunday Night
Showers likely, mainly before 1am. Mostly cloudy, with a low around 55. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Monday
Partly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 53.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
A 40 percent chance of showers after 1am. Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Savanna IL
 42.07°N 90.13°W (Elev. 591 ft)
Last Update:
5:17 am CDT Jun 19, 2026
Forecast Valid:
6am CDT Jun 19, 2026-6pm CDT Jun 25, 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