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.

A Few Clouds and Breezy

75°F

24°C

Humidity 37%
Wind Speed SW 21 G 25 mph
Barometer 30.14 in (1020.7 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 9 Apr 2:55 pm EDT
Extended Forecast for

2 Miles SW Somerset IN

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 73. Southwest wind around 20 mph, with gusts as high as 30 mph.

    High: 73 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 56. South wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 56 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8am. High near 61. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 61 °F

    Showers

  • Friday Night

    Friday Night: Showers likely before 8pm. Partly cloudy, with a low around 39. North wind 5 to 10 mph. Chance of precipitation is 60%.

    Low: 39 °F

    Showers
    Likely then
    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64. East wind 5 to 10 mph.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 79.

    High: 79 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 40%.

    High: 77 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 73. Southwest wind around 20 mph, with gusts as high as 30 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 56. South wind 10 to 15 mph, with gusts as high as 25 mph.
Friday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 8am. High near 61. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely before 8pm. Partly cloudy, with a low around 39. North wind 5 to 10 mph. Chance of precipitation is 60%.
Saturday
Sunny, with a high near 64. East wind 5 to 10 mph.
Saturday Night
Mostly cloudy, with a low around 52.
Sunday
Mostly cloudy, with a high near 79.
Sunday Night
A 40 percent chance of showers after 2am. Mostly cloudy, with a low around 63.
Monday
A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 77. Chance of precipitation is 40%.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Wednesday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 78.
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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:
2:30 pm EDT Apr 9, 2026
Forecast Valid:
3pm EDT Apr 9, 2026-6pm EDT Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

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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