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

53°F

12°C

Humidity 33%
Wind Speed SE 3 mph
Barometer 30.28 in (1026.2 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 20 Apr 4:55 pm EDT
Extended Forecast for

2 Miles SW Somerset IN

  • Tonight

    Tonight: Mostly clear, with a low around 41. Light and variable wind becoming south 5 to 10 mph in the evening.

    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 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 58 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: Partly sunny, with a high near 74. West wind 5 to 10 mph.

    High: 74 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56. South wind around 5 mph.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62.

    Low: 62 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 77. Chance of precipitation is 70%.

    High: 77 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 41. Light and variable wind becoming south 5 to 10 mph in the evening.
Tuesday
Mostly sunny, with a high near 74. Southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 74. West wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 56. South wind around 5 mph.
Thursday
Mostly sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 62.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 77. Chance of precipitation is 70%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers after 2am. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers. Partly sunny, with a high near 71.
Saturday Night
A 20 percent chance of showers. Partly cloudy, with a low around 50.
Sunday
A 20 percent chance of showers. Partly sunny, with a high near 69.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 51.
Monday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 68.
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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:
4:00 pm EDT Apr 20, 2026
Forecast Valid:
5pm EDT Apr 20, 2026-6pm EDT Apr 27, 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