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 >

Hazardous Weather Conditions

Current conditions at

Van Wert County Airport (KVNW)

Lat: 40.86°NLon: 84.61°WElev: 787ft.

Fair

75°F

24°C

Humidity 78%
Wind Speed SW 6 mph
Barometer 30.13 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 16 Aug 8:55 am EDT
Extended Forecast for

Decatur IN

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89. Heat index values as high as 97. Calm wind becoming southwest around 5 mph in the morning.

    High: 89 °F

    Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 11pm. Mostly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Heat index values as high as 95. West wind around 5 mph.

    High: 87 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 66. East wind around 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Southeast wind around 5 mph.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.

    High: 89 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 65. Chance of precipitation is 30%.

    Low: 65 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers, with thunderstorms also possible after 8am. Partly sunny, with a high near 79. Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 89. Heat index values as high as 97. Calm wind becoming southwest around 5 mph in the morning.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after 11pm. Mostly cloudy, with a low around 70. Southwest wind around 5 mph becoming calm.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Heat index values as high as 95. West wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 66. East wind around 5 mph.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Southeast wind around 5 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 70.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Tuesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Wednesday
A slight chance of showers, with thunderstorms also possible after 8am. Partly sunny, with a high near 79. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 61.
Thursday
Mostly sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 84.
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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:
8:45 am EDT Aug 16, 2025
Forecast Valid:
8am EDT Aug 16, 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