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

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Fair

76°F

24°C

Humidity 82%
Wind Speed E 5 mph
Barometer 30.20 in (1022.3 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 6 Aug 9:55 pm EDT
Extended Forecast for

Walton IN

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 65. Calm wind.

    Low: 65 °F

    Mostly Clear
    then Patchy
    Fog

  • Thursday

    Thursday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 86. Calm wind becoming south around 5 mph.

    High: 86 °F

    Patchy Fog
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 68. Calm wind becoming south around 5 mph.

    Low: 68 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 87. South wind around 5 mph.

    High: 87 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 69. South wind around 5 mph.

    Low: 69 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 2am. Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 65. Calm wind.
Thursday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 86. Calm wind becoming south around 5 mph.
Thursday Night
Partly cloudy, with a low around 68. Calm wind becoming south around 5 mph.
Friday
Mostly sunny, with a high near 87. South wind around 5 mph.
Friday Night
Mostly clear, with a low around 69. South wind around 5 mph.
Saturday
Sunny, with a high near 89.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 89.
Sunday Night
A 20 percent chance of showers after 2am. Partly cloudy, with a low around 70.
Monday
A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 20%.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Walton IN
 40.65°N 86.26°W (Elev. 768 ft)
Last Update:
9:45 pm EDT Aug 6, 2025
Forecast Valid:
10pm EDT Aug 6, 2025-6pm EDT Aug 13, 2025
 
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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