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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

73°F

23°C

Humidity 93%
Wind Speed E 5 mph
Barometer 30.11 in (1019.4 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Last update 15 Aug 1:55 am EDT
Extended Forecast for

2 Miles SW Somerset IN

Flood Watch August 15, 04:00am until August 16, 12:00am
Click here for hazard details and duration
Flood Watch

  • Overnight

    Overnight: A 20 percent chance of showers after 3am. Mostly cloudy, with a low around 68. Calm wind.

    Low: 68 °F

    Slight Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 85. Southeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.

    High: 85 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, mainly before 2am, then a slight chance of thunderstorms after 4am. Mostly cloudy, with a low around 72. South wind around 5 mph. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Heat index values as high as 96. Southwest wind around 10 mph. Chance of precipitation is 40%.

    High: 85 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 66. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 66 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers, mainly after 2am. Partly cloudy, with a low around 63.

    Low: 63 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 20 percent chance of showers after 3am. Mostly cloudy, with a low around 68. Calm wind.
Saturday
A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 85. Southeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between three quarters and one inch possible.
Saturday Night
A chance of showers and thunderstorms, mainly before 2am, then a slight chance of thunderstorms after 4am. Mostly cloudy, with a low around 72. South wind around 5 mph. Chance of precipitation is 30%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Heat index values as high as 96. Southwest wind around 10 mph. Chance of precipitation is 40%.
Sunday Night
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Partly cloudy, with a low around 66. Northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 59.
Tuesday
Sunny, with a high near 79.
Tuesday Night
A 30 percent chance of showers, mainly after 2am. Partly cloudy, with a low around 63.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 40%.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 74.
Thursday Night
A slight chance of thunderstorms. Partly cloudy, with a low around 58.
Friday
A slight chance of showers. Mostly sunny, with a high near 73.
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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:
10:02 pm EDT Aug 14, 2026
Forecast Valid:
2am EDT Aug 15, 2026-6pm EDT Aug 21, 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