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

Fort Wayne International Airport (KFWA)

Lat: 40.97°NLon: 85.21°WElev: 797ft.

Fair

65°F

18°C

Humidity 84%
Wind Speed Calm
Barometer 30.11 in (1019.0 mb)
Dewpoint 60°F (16°C)
Visibility 9.00 mi
Last update 15 Jul 3:54 am EDT
Extended Forecast for

Decatur IN

  • Today

    Today: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 89. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 89 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: A slight chance of showers, then a chance of showers and thunderstorms after 11pm. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Heat index values as high as 96. Southwest wind around 5 mph. Chance of precipitation is 60%.

    High: 87 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 73. Southwest wind around 5 mph.

    Low: 73 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 84. Southwest wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Low around 65. Chance of precipitation is 80%.

    Low: 65 °F

    Showers then
    Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly cloudy, with a high near 79.

    High: 79 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 65.

    Low: 65 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 40%.

    High: 85 °F

    Chance
    Showers

Detailed Forecast

Today
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 89. Calm wind becoming southeast around 5 mph in the afternoon.
Tonight
A slight chance of showers, then a chance of showers and thunderstorms after 11pm. Mostly cloudy, with a low around 71. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. Heat index values as high as 96. Southwest wind around 5 mph. Chance of precipitation is 60%.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 73. Southwest wind around 5 mph.
Thursday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2pm. High near 84. Southwest wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Low around 65. Chance of precipitation is 80%.
Friday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly cloudy, with a high near 79.
Friday Night
Mostly cloudy, with a low around 65.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Sunday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Decatur IN
 40.85°N 84.93°W (Elev. 778 ft)
Last Update:
2:45 am EDT Jul 15, 2025
Forecast Valid:
4am EDT Jul 15, 2025-6pm EDT Jul 21, 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