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.

Light Rain

72°F

22°C

Humidity 94%
Wind Speed SE 5 mph
Barometer 30.09 in (1018.7 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 15 Aug 9:55 am EDT
Extended Forecast for

Galveston IN

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

    NOW until 12:00am Sun

    Flood Watch

  • Today

    High: 82 °F

    Showers

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. West wind around 5 mph.

    Low: 70 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84. West wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 67. Northwest wind 5 to 10 mph.

    Low: 67 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 79. North wind 5 to 10 mph.

    High: 79 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58.

    Low: 58 °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 and thunderstorms after 2am. Partly cloudy, with a low around 64.

    Low: 64 °F

    Mostly Clear
    then Chance
    Showers

Detailed Forecast

Today
Showers and possibly a thunderstorm. High near 82. South wind 5 to 10 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. West wind around 5 mph.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84. West wind 5 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 67. Northwest wind 5 to 10 mph.
Monday
Mostly sunny, with a high near 79. North wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 79.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 64.
Wednesday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a slight chance of showers between 8pm and 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Galveston IN
 40.59°N 86.2°W (Elev. 778 ft)
Last Update:
9:46 am EDT Aug 15, 2026
Forecast Valid:
10am 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