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 44%
Wind Speed W 9 mph
Barometer 29.91 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 2 Sep 3:35 pm CDT
Extended Forecast for

Preston IA

Heat Advisory September 2, 03:54pm until September 3, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 2, 03:54pm until September 3, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 93 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 4am. Mostly clear, with a low around 72. South wind around 5 mph. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms before 10am. Mostly sunny, with a high near 92. Heat index values as high as 100. Southwest wind 5 to 10 mph.

    High: 92 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms between 1am and 2am. Mostly clear, with a low around 72. South wind around 5 mph becoming west after midnight. Chance of precipitation is 30%.

    Low: 72 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers after 1am. Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 93. Heat index values as high as 102. Southwest wind around 10 mph, with gusts as high as 20 mph.
Tonight
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 4am. Mostly clear, with a low around 72. South wind around 5 mph. Chance of precipitation is 20%.
Thursday
A 20 percent chance of showers and thunderstorms before 10am. Mostly sunny, with a high near 92. Heat index values as high as 100. Southwest wind 5 to 10 mph.
Thursday Night
A chance of showers and thunderstorms between 1am and 2am. Mostly clear, with a low around 72. South wind around 5 mph becoming west after midnight. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 92.
Friday Night
A 40 percent chance of showers after 1am. Partly cloudy, with a low around 71.
Saturday
Mostly sunny, with a high near 90.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Mostly sunny, with a high near 87.
Sunday Night
Partly cloudy, with a low around 66.
Labor Day
Mostly sunny, with a high near 85.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Preston IA
 42.06°N 90.39°W (Elev. 650 ft)
Last Update:
3:11 pm CDT Sep 2, 2026
Forecast Valid:
3pm CDT Sep 2, 2026-6pm CDT Sep 8, 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