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Hazardous Weather Conditions

Current conditions at

Tri-Township Airport (KSFY)

Lat: 42.05°NLon: 90.11°WElev: 614ft.

Mostly Cloudy

69°F

21°C

Humidity 79%
Wind Speed S 14 mph
Barometer 29.76 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 15 Apr 2:55 pm CDT
Extended Forecast for

Savanna IL

Flood Watch April 15, 03:12pm until April 16, 12:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch April 15, 03:12pm until April 16, 12:00am

    NOW until 12:00am Thu

    Flood Watch

  • This Afternoon

    High: 71 °F

    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then a slight chance of showers. Some of the storms could produce heavy rainfall. Low around 56. South wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    Low: 56 °F

    Heavy Rain
    then Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 73. West wind around 5 mph becoming northwest in the morning.

    High: 73 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. Calm wind becoming southeast around 5 mph after midnight.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Showers likely and possibly a thunderstorm, mainly after 4pm. Partly sunny, with a high near 80. Chance of precipitation is 60%.

    High: 80 °F

    Partly Sunny
    then Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 1am, then showers likely. Some of the storms could produce heavy rainfall. Low around 40. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 40 °F

    Heavy Rain

  • Saturday

    Saturday: A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 51.

    High: 51 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 32.

    Low: 32 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm before 4pm, then showers and thunderstorms likely between 4pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 71. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms before 4am, then a slight chance of showers. Some of the storms could produce heavy rainfall. Low around 56. South wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Thursday
A 20 percent chance of showers before 9am. Mostly cloudy, then gradually becoming sunny, with a high near 73. West wind around 5 mph becoming northwest in the morning.
Thursday Night
Mostly clear, with a low around 53. Calm wind becoming southeast around 5 mph after midnight.
Friday
Showers likely and possibly a thunderstorm, mainly after 4pm. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Friday Night
Showers and possibly a thunderstorm before 1am, then showers likely. Some of the storms could produce heavy rainfall. Low around 40. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Saturday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 51.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 53.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Sunny, with a high near 63.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Sunny, with a high near 72.
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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:
2:52 pm CDT Apr 15, 2026
Forecast Valid:
3pm CDT Apr 15, 2026-6pm CDT Apr 21, 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