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.

Thunderstorm Light Rain in Vicinity

71°F

22°C

Humidity 95%
Wind Speed SE 14 mph
Barometer 29.97 in (1014.5 mb)
Dewpoint 70°F (21°C)
Visibility 9.00 mi
Last update 14 Aug 3:55 am EDT
Extended Forecast for

Galveston IN

Flood Watch August 14, 04:36am until August 14, 11:00am
Flood Advisory August 14, 04:36am until August 14, 06:00am
Click here for hazard details and duration
Flood Watch
Flood Advisory
  •  
    Flood Watch August 14, 04:36am until August 14, 11:00am
    Flood Advisory August 14, 04:36am until August 14, 06:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 68 °F

    Showers

  • Friday

    Friday: Showers and thunderstorms, mainly before noon. High near 84. East wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 69. Southeast wind around 5 mph.

    Low: 69 °F

    Partly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Southeast wind 5 to 10 mph becoming southwest in the morning.

    High: 86 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind around 5 mph.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.

    High: 86 °F

    Partly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Showers
    Likely

  • Monday

    Monday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Low around 68. East wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Showers and thunderstorms, mainly before noon. High near 84. East wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A 30 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 69. Southeast wind around 5 mph.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Southeast wind 5 to 10 mph becoming southwest in the morning.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. South wind around 5 mph.
Sunday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Mostly clear, with a low around 62.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 78.
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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:
4:16 am EDT Aug 14, 2026
Forecast Valid:
4am EDT Aug 14, 2026-6pm EDT Aug 20, 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