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.

Light Rain

40°F

4°C

Humidity 70%
Wind Speed E 5 mph
Barometer 30.06 in (1018.7 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill36°F (2°C)
Last update 18 Nov 4:55 am EST
Extended Forecast for

4 Miles SW Galveston IN

  • Overnight

    Overnight: Showers. Steady temperature around 35. East southeast wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 35 °F

    Showers

  • Tuesday

    Tuesday: Showers, mainly before 10am. High near 45. East southeast wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 45 °F

    Showers then
    Scattered
    Showers

  • Tuesday Night

    Tuesday Night: Isolated showers before 8pm. Cloudy, with a low around 37. East northeast wind around 6 mph. Chance of precipitation is 20%.

    Low: 37 °F

    Isolated
    Showers then
    Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 49. East wind 5 to 7 mph.

    High: 49 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: Cloudy, with a low around 40. Light and variable wind.

    Low: 40 °F

    Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 56. Calm wind becoming south southwest around 6 mph in the morning.

    High: 56 °F

    Cloudy then
    Chance Rain

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Mostly cloudy, with a low around 43. South southwest wind around 6 mph becoming west northwest after midnight.

    Low: 43 °F

    Chance Rain

  • Friday

    Friday: A 40 percent chance of rain. Mostly cloudy, with a high near 52. North wind 5 to 8 mph.

    High: 52 °F

    Chance Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 31. North northeast wind around 6 mph.

    Low: 31 °F

    Chance Rain

Detailed Forecast

Overnight
Showers. Steady temperature around 35. East southeast wind around 7 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Showers, mainly before 10am. High near 45. East southeast wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Isolated showers before 8pm. Cloudy, with a low around 37. East northeast wind around 6 mph. Chance of precipitation is 20%.
Wednesday
Cloudy, with a high near 49. East wind 5 to 7 mph.
Wednesday Night
Cloudy, with a low around 40. Light and variable wind.
Thursday
A 30 percent chance of rain after 1pm. Mostly cloudy, with a high near 56. Calm wind becoming south southwest around 6 mph in the morning.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 43. South southwest wind around 6 mph becoming west northwest after midnight.
Friday
A 40 percent chance of rain. Mostly cloudy, with a high near 52. North wind 5 to 8 mph.
Friday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 31. North northeast wind around 6 mph.
Saturday
A 20 percent chance of rain before 1pm. Mostly sunny, with a high near 50. Northeast wind around 6 mph becoming west northwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 53.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 55.
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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:
5:15 am EST Nov 18, 2025
Forecast Valid:
5am EST Nov 18, 2025-6pm EST Nov 24, 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