Showers and Thunderstorms from the Southern Plains into the Mid-Mississippi Valley; Record Warmth in the Plains and Midwest

Heavy rain and widely scattered severe storms capable of large hail, damaging winds, and possibly a tornado are expected over portions of the central and southern Plains into the Lower Missouri Valley. Unseasonable warmth will continue for a few more days across the Midwest and Southeast where several daily record highs could fall. Read More >

Current conditions at

Grissom Air Force Base / Peru (KGUS)

Lat: 40.65°NLon: 86.15°WElev: 810ft.

Mostly Cloudy

74°F

23°C

Humidity 79%
Wind Speed W 5 mph
Barometer 29.91 in (1012.3 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 14 Oct 3:55 am EDT
Extended Forecast for

Grissom Air Force Base / Peru IN

  • Today

    Today: A chance of showers and thunderstorms.  Mostly cloudy, with a high near 74. Calm wind becoming north around 5 mph in the afternoon.  Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. Northeast wind 5 to 10 mph.

    Low: 58 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers, then showers likely and possibly a thunderstorm after 5pm.  Mostly cloudy, with a high near 67. East wind 10 to 15 mph.  Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Mostly Cloudy
    then Showers
    Likely

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm.  Low around 54. South wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 20 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 54 °F

    Showers

  • Friday

    Friday: A 50 percent chance of showers.  Mostly cloudy, with a high near 57. Northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 57 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 36.

    Low: 36 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms. Mostly cloudy, with a high near 74. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.
Tonight
Mostly cloudy, with a low around 58. Northeast wind 5 to 10 mph.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 67. East wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers and possibly a thunderstorm. Low around 54. South wind 5 to 15 mph becoming west after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday
A 50 percent chance of showers. Mostly cloudy, with a high near 57. Northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Sunny, with a high near 58.
Saturday Night
Clear, with a low around 36.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 45.
Monday
Mostly sunny, with a high near 68.
Monday Night
Mostly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Grissom Air Force Base / Peru IN
 40.67°N 86.14°W (Elev. 781 ft)
2:29 am EDT Oct 14, 2026
4am EDT Oct 14, 2026-6pm EDT Oct 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database