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.

Fair

38°F

3°C

Humidity 82%
Wind Speed Calm
Barometer 30.24 in (1024.8 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 20 Apr 1:55 am EDT
Extended Forecast for

2 Miles SW Somerset IN

Freeze Warning until April 20, 11:00am
Click here for hazard details and duration
Freeze Warning
  •  
    Freeze Warning until April 20, 11:00am

    NOW until 11:00am Mon

    Freeze Warning

  • Overnight

    Low: 29 °F

    Frost

  • Monday

    Monday: Widespread frost before 10am. Otherwise, sunny, with a high near 53. Calm wind.

    High: 53 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. Light south wind increasing to 5 to 10 mph after midnight.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. Southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 57. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A 10 percent chance of showers before 8am. Mostly sunny, with a high near 75.

    High: 75 °F

    Slight Chance
    Showers then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

Overnight
Widespread frost. Otherwise, mostly clear, with a low around 29. Calm wind.
Monday
Widespread frost before 10am. Otherwise, sunny, with a high near 53. Calm wind.
Monday Night
Mostly clear, with a low around 41. Light south wind increasing to 5 to 10 mph after midnight.
Tuesday
Mostly sunny, with a high near 74. Southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 57. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
A 10 percent chance of showers before 8am. 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 after 2am. Partly cloudy, with a low around 62.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 70%.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 69.
Saturday Night
A slight chance of showers. Partly cloudy, with a low around 48.
Sunday
A slight chance of showers. Partly sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Somerset IN
 40.68°N 85.91°W (Elev. 748 ft)
Last Update:
1:45 am EDT Apr 20, 2026
Forecast Valid:
2am EDT Apr 20, 2026-6pm EDT Apr 26, 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