National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

Van Wert County Airport (KVNW)

Lat: 40.86°NLon: 84.61°WElev: 787ft.

Fair

72°F

22°C

Humidity 88%
Wind Speed Calm
Barometer 30.16 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 15 Aug 11:15 pm EDT
Extended Forecast for

Decatur IN

  • Tonight

    Tonight: Mostly clear, with a low around 68. Southeast wind around 5 mph becoming calm.

    Low: 68 °F

    Mostly Clear

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 97. South wind around 5 mph. Chance of precipitation is 30%.

    High: 90 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. Heat index values as high as 98. West wind around 5 mph becoming north in the afternoon.

    High: 89 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 68. East wind around 5 mph.

    Low: 68 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A slight chance of showers between 8am and 11am, then a slight chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 90. Chance of precipitation is 20%.

    High: 90 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 68. Southeast wind around 5 mph becoming calm.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 97. South wind around 5 mph. Chance of precipitation is 30%.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 72. South wind around 5 mph becoming calm.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. Heat index values as high as 98. West wind around 5 mph becoming north in the afternoon.
Sunday Night
A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 68. East wind around 5 mph.
Monday
A slight chance of showers between 8am and 11am, then a slight chance of showers and thunderstorms after 11am. Mostly sunny and hot, with a high near 90. Chance of precipitation is 20%.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Wednesday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Decatur IN
 40.83°N 84.93°W (Elev. 778 ft)
Last Update:
11:15 pm EDT Aug 15, 2025
Forecast Valid:
11pm EDT Aug 15, 2025-6pm EDT Aug 22, 2025
 
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