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Hazardous Weather Conditions

Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Fair

54°F

12°C

Humidity 93%
Wind Speed Calm
Barometer 29.93 in (1013.6 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 17 Apr 2:55 am EDT
Extended Forecast for

2 Miles SW Somerset IN

Dense Fog Advisory until April 17, 08:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until April 17, 08:00am

    NOW until 8:00am Fri

    Dense Fog Advisory

  • Overnight

    Low: 53 °F

    Patchy Dense
    Fog

  • Friday

    Friday: Patchy dense fog before 9am. Otherwise, mostly sunny, with a high near 82. Light southeast wind becoming south 5 to 10 mph in the morning.

    High: 82 °F

    Patchy Dense
    Fog then
    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 53. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 53 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 65. Southwest wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 65 °F

    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 37. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Chance
    Showers then
    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

Detailed Forecast

Overnight
Patchy dense fog. Otherwise, partly cloudy, with a low around 53. Calm wind.
Friday
Patchy dense fog before 9am. Otherwise, mostly sunny, with a high near 82. Light southeast wind becoming south 5 to 10 mph in the morning.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 53. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Showers and possibly a thunderstorm. High near 65. Southwest wind around 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
A 30 percent chance of showers before 8pm. Partly cloudy, with a low around 37. Northwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 53.
Sunday Night
Mostly clear, with a low around 31.
Monday
Sunny, with a high near 55.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Wednesday Night
A slight chance of thunderstorms. Partly cloudy, with a low around 54.
Thursday
Mostly sunny, with a high near 79.
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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 am EDT Apr 17, 2026
Forecast Valid:
4am EDT Apr 17, 2026-6pm EDT Apr 23, 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