Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Fair

74°F

23°C

Humidity 41%
Wind Speed NW 9 mph
Barometer 29.91 in (1012.7 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 20 Jun 7:55 pm EDT
Extended Forecast for

3 Miles NNW Galveston IN

  • Tonight

    Tonight: Partly cloudy, with a low around 56. West wind around 5 mph becoming calm  in the evening.

    Low: 56 °F

    Partly Cloudy

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 5pm.  Mostly cloudy, with a high near 75. Southeast wind around 5 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Partly Sunny
    then Showers
    Likely

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm.  Low around 59. East wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 59 °F

    Showers

  • Monday

    Monday: A 50 percent chance of showers, mainly before 2pm.  Mostly cloudy, with a high near 73. North wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 73 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 10 percent chance of showers before 8pm.  Mostly clear, with a low around 55. North wind 5 to 10 mph.

    Low: 55 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 77.

    High: 77 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 8pm.  Partly cloudy, with a low around 58.

    Low: 58 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 56. West wind around 5 mph becoming calm in the evening.
Sunday
Showers likely, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 75. Southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers and possibly a thunderstorm. Low around 59. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Monday
A 50 percent chance of showers, mainly before 2pm. Mostly cloudy, with a high near 73. North wind 10 to 15 mph, with gusts as high as 20 mph.
Monday Night
A 10 percent chance of showers before 8pm. Mostly clear, with a low around 55. North wind 5 to 10 mph.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 77.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 58.
Thursday
A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 76.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Friday
Mostly sunny, with a high near 78.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Galveston IN
 40.61°N 86.2°W (Elev. 751 ft)
5:32 pm EDT Jun 20, 2026
8pm EDT Jun 20, 2026-6pm EDT Jun 27, 2026
 
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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