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

Unsettled Weather in the Eastern U.S. through Memorial Day

Showers and thunderstorms are expected from Texas to the Northeast through Tuesday. Heavy rain will create mainly localized areas of flash flooding across the central Gulf Coast into the Appalachians. Elevated to Critical fire weather conditions due to gusty winds and low humidity are expected through Tuesday across Oregon and Nevada. Showers and thunderstorms will develop over the Northwest. Read More >

Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Fair

66°F

19°C

Humidity 56%
Wind Speed E 6 mph
Barometer 30.08 in (1018.6 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 25 May 10:55 pm EDT
Extended Forecast for

2 Miles WSW Peru IN

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 55. Calm wind.

    Low: 55 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 81. Calm wind becoming east around 5 mph in the afternoon.

    High: 81 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 61. Calm wind.

    Low: 61 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Wednesday

    Wednesday: A 10 percent chance of showers before 8am. Partly sunny, with a high near 82. Calm wind becoming north around 5 mph in the afternoon.

    High: 82 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60. Calm wind becoming north around 5 mph after midnight.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 55. Calm wind.
Tuesday
Mostly cloudy, with a high near 81. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers after 2am. Mostly cloudy, with a low around 61. Calm wind.
Wednesday
A 10 percent chance of showers before 8am. Partly sunny, with a high near 82. Calm wind becoming north around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 60. Calm wind becoming north around 5 mph after midnight.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 55.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 53.
Sunday
Sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 54.
Monday
Sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Peru IN
 40.76°N 86.1°W (Elev. 650 ft)
Last Update:
11:15 pm EDT May 25, 2026
Forecast Valid:
11pm EDT May 25, 2026-6pm EDT Jun 1, 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