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

94°F

34°C

Humidity 56%
Wind Speed SW 6 mph
Barometer 29.94 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index107°F (42°C)
Last update 1 Sep 2:35 pm CDT
Extended Forecast for

5 Miles N Savanna IL

Heat Advisory September 1, 02:47pm until September 3, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 1, 02:47pm until September 3, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 91 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 71. South wind around 5 mph.

    Low: 71 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 9am. Otherwise, sunny, with a high near 92. Heat index values as high as 101. Southwest wind 5 to 10 mph.

    High: 92 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 72. Southwest wind around 5 mph.

    Low: 72 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly clear, with a low around 73. Chance of precipitation is 40%.

    Low: 73 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.

    High: 89 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Heat index values as high as 102. Southwest wind around 5 mph.
Tonight
Patchy fog after 4am. Otherwise, mostly cloudy, then gradually becoming clear, with a low around 71. South wind around 5 mph.
Wednesday
Patchy fog before 9am. Otherwise, sunny, with a high near 92. Heat index values as high as 101. Southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 72. Southwest wind around 5 mph.
Thursday
Mostly sunny, with a high near 91.
Thursday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly clear, with a low around 73. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 70.
Saturday
Mostly sunny, with a high near 88.
Saturday Night
Partly cloudy, with a low around 68.
Sunday
A 30 percent chance of showers. Partly sunny, with a high near 85.
Sunday Night
Partly cloudy, with a low around 66.
Labor Day
Mostly sunny, with a high near 81.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N Savanna IL
 42.16°N 90.15°W (Elev. 846 ft)
Last Update:
1:26 pm CDT Sep 1, 2026
Forecast Valid:
2pm CDT Sep 1, 2026-6pm CDT Sep 7, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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