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Hazardous Weather Conditions

Current conditions at

Tri-Township Airport (KSFY)

Lat: 42.05°NLon: 90.11°WElev: 614ft.

Overcast

62°F

17°C

Humidity 92%
Wind Speed SW 7 mph
Barometer 29.80 in
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 13 Apr 2:55 am CDT
Extended Forecast for

Savanna IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 59. Southwest wind around 10 mph.

    Low: 59 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly cloudy, with a high near 76. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 76 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms, mainly between 11pm and 5am. Partly cloudy, with a low around 64. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 64 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 81 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers and thunderstorms. Low around 61. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 61 °F

    T-storms

  • Wednesday

    Wednesday: Showers likely, then showers and possibly a thunderstorm after 10am. High near 74. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 74 °F

    Showers
    Likely then
    Showers

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.

    Low: 57 °F

    Showers
    Likely

  • Thursday

    Thursday: A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 74.

    High: 74 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 59. Southwest wind around 10 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 4pm. Mostly cloudy, with a high near 76. South wind 5 to 15 mph, with gusts as high as 20 mph.
Monday Night
A 40 percent chance of showers and thunderstorms, mainly between 11pm and 5am. Partly cloudy, with a low around 64. South wind around 15 mph, with gusts as high as 25 mph.
Tuesday
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. Southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Tuesday Night
Showers and thunderstorms. Low around 61. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers likely, then showers and possibly a thunderstorm after 10am. High near 74. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Thursday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 54.
Friday
A 50 percent chance of showers after 1pm. Mostly sunny, with a high near 82.
Friday Night
Showers and possibly a thunderstorm. Low around 50. Chance of precipitation is 80%.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 35.
Sunday
Mostly sunny, with a high near 56.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Savanna IL
 42.09°N 90.13°W (Elev. 623 ft)
Last Update:
1:51 am CDT Apr 13, 2026
Forecast Valid:
3am CDT Apr 13, 2026-6pm CDT Apr 19, 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