National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

38°F

3°C

Humidity 80%
Wind Speed S 5 mph
Barometer 30.03 in
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 19 Mar 1:55 am EDT
Extended Forecast for

4 Miles SW Galveston IN

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 36. Southwest wind around 6 mph.

    Low: 36 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 61. Calm wind becoming south southeast around 6 mph in the afternoon.

    High: 61 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46. Light east southeast wind becoming south 5 to 9 mph in the evening.

    Low: 46 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 71. South southwest wind 11 to 16 mph, with gusts as high as 24 mph.

    High: 71 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42. North wind 6 to 9 mph.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 67. Northeast wind 5 to 8 mph becoming southwest in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 52. South southwest wind 6 to 10 mph.

    Low: 52 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain after 2pm. Mostly sunny, with a high near 75. Breezy, with a south southwest wind 14 to 21 mph, with gusts as high as 28 mph.

    High: 75 °F

    Mostly Sunny
    then Slight
    Chance Rain
    and Breezy

  • Sunday Night

    Sunday Night: A 20 percent chance of rain and thunderstorms before 2am. Mostly cloudy, with a low around 34. North wind around 18 mph, with gusts as high as 25 mph.

    Low: 34 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 36. Southwest wind around 6 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 61. Calm wind becoming south southeast around 6 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 46. Light east southeast wind becoming south 5 to 9 mph in the evening.
Friday
Partly sunny, with a high near 71. South southwest wind 11 to 16 mph, with gusts as high as 24 mph.
Friday Night
Mostly cloudy, with a low around 42. North wind 6 to 9 mph.
Saturday
Mostly sunny, with a high near 67. Northeast wind 5 to 8 mph becoming southwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 52. South southwest wind 6 to 10 mph.
Sunday
A 20 percent chance of rain after 2pm. Mostly sunny, with a high near 75. Breezy, with a south southwest wind 14 to 21 mph, with gusts as high as 28 mph.
Sunday Night
A 20 percent chance of rain and thunderstorms before 2am. Mostly cloudy, with a low around 34. North wind around 18 mph, with gusts as high as 25 mph.
Monday
Mostly sunny, with a high near 46. North wind around 15 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 29.
Tuesday
Partly sunny, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Galveston IN
 40.54°N 86.24°W (Elev. 807 ft)
Last Update:
2:26 am EDT Mar 19, 2026
Forecast Valid:
2am EDT Mar 19, 2026-6pm EDT Mar 25, 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