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 31%
Wind Speed SE 8 mph
Barometer 30.33 in (1026.9 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 3 Jun 11:55 am EDT
Extended Forecast for

Walton IN

  • This Afternoon

    This Afternoon: Sunny, with a high near 82. Southeast wind around 5 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 58. South wind around 5 mph.

    Low: 58 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 84. Southwest wind 5 to 10 mph.

    High: 84 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 65. South wind 5 to 10 mph.

    Low: 65 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 85. Southwest wind 10 to 20 mph, with gusts as high as 25 mph.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.

    Low: 67 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 84. Chance of precipitation is 80%.

    High: 84 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 65. Chance of precipitation is 80%.

    Low: 65 °F

    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.

    High: 84 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 82. Southeast wind around 5 mph.
Tonight
Partly cloudy, with a low around 58. South wind around 5 mph.
Thursday
Mostly sunny, with a high near 84. Southwest wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 65. South wind 5 to 10 mph.
Friday
A 20 percent chance of showers after 2pm. Mostly sunny, with a high near 85. Southwest wind 10 to 20 mph, with gusts as high as 25 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.
Saturday
Showers likely and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 84. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 65. Chance of precipitation is 80%.
Sunday
A chance of showers, with thunderstorms also possible after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
Sunday Night
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 65.
Monday
A 20 percent chance of showers. Mostly sunny, with a high near 85.
Monday Night
A 10 percent chance of showers. Partly cloudy, with a low around 65.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Walton IN
 40.65°N 86.26°W (Elev. 768 ft)
Last Update:
12:33 pm EDT Jun 3, 2026
Forecast Valid:
12pm EDT Jun 3, 2026-6pm EDT Jun 9, 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