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

Hazardous Weather Conditions

Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Partly Cloudy

44°F

7°C

Humidity 60%
Wind Speed W 12 mph
Barometer 30.06 in (1018.5 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 18 Apr 10:55 pm EDT
Extended Forecast for

Walton IN

Freeze Watch April 20, 12:00am until April 20, 11:00am
Frost Advisory until April 19, 09:00am
Click here for hazard details and duration
Freeze Watch
Frost Advisory
  •  
    Frost Advisory until April 19, 09:00am

    NOW until 9:00am Sun

    Frost Advisory

  • Overnight

    Low: 35 °F

    Patchy Frost

  • Sunday

    Sunday: Isolated showers after 2pm. Areas of frost before 8am. Otherwise, mostly sunny, with a high near 54. West wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 20%.

    High: 54 °F

    Areas Frost
    then Isolated
    Showers

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 31. North wind 5 to 10 mph.

    Low: 31 °F

    Partly Cloudy
    then Frost

  • Monday

    Monday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 53. Northeast wind around 5 mph becoming west in the afternoon.

    High: 53 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41. Light south wind increasing to 5 to 10 mph in the evening.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 73. Breezy.

    High: 73 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

Overnight
Patchy frost after 4am. Otherwise, mostly clear, with a low around 35. West wind 5 to 10 mph.
Sunday
Isolated showers after 2pm. Areas of frost before 8am. Otherwise, mostly sunny, with a high near 54. West wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 20%.
Sunday Night
Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 31. North wind 5 to 10 mph.
Monday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 53. Northeast wind around 5 mph becoming west in the afternoon.
Monday Night
Partly cloudy, with a low around 41. Light south wind increasing to 5 to 10 mph in the evening.
Tuesday
Mostly sunny, with a high near 73. Breezy.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 56.
Wednesday
Mostly sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 56.
Thursday
Mostly sunny, with a high near 80.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 62.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 75. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 49.
Saturday
A chance of showers. Partly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Walton IN
 40.68°N 86.25°W (Elev. 748 ft)
Last Update:
10:45 pm EDT Apr 18, 2026
Forecast Valid:
12am EDT Apr 19, 2026-6pm EDT Apr 25, 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