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.

Mostly Cloudy

89°F

32°C

Humidity 65%
Wind Speed SW 7 mph
Barometer 30.01 in (1015.7 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 16 Aug 6:55 pm EDT
Extended Forecast for

3 Miles NNW Galveston IN

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and midnight, then a chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 72. South wind around 5 mph. Chance of precipitation is 40%.

    Low: 72 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly sunny, with a high near 89. Heat index values as high as 98. Northwest wind around 5 mph.

    High: 89 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 68. North wind around 5 mph becoming east after midnight.

    Low: 68 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 95. East wind around 5 mph becoming south in the afternoon.

    High: 90 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 70. South wind around 5 mph. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.

    High: 91 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A slight chance of showers before 8am, then a slight chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 20%.

    High: 81 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers before 8pm. Partly cloudy, with a low around 62.

    Low: 62 °F

    Slight Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and midnight, then a chance of showers and thunderstorms after midnight. Partly cloudy, with a low around 72. South wind around 5 mph. Chance of precipitation is 40%.
Sunday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Mostly sunny, with a high near 89. Heat index values as high as 98. Northwest wind around 5 mph.
Sunday Night
Partly cloudy, with a low around 68. North wind around 5 mph becoming east after midnight.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 95. East wind around 5 mph becoming south in the afternoon.
Monday Night
A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 70. South wind around 5 mph. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 91.
Tuesday Night
A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Wednesday
A slight chance of showers before 8am, then a slight chance of showers after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 20%.
Wednesday Night
A 10 percent chance of showers before 8pm. Partly cloudy, with a low around 62.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 86.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Galveston IN
 40.61°N 86.2°W (Elev. 751 ft)
Last Update:
5:44 pm EDT Aug 16, 2025
Forecast Valid:
7pm EDT Aug 16, 2025-6pm EDT Aug 23, 2025
 
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