Dangerous Heat Wave Continues; Areas of Severe Thunderstorms Today

Dangerous, record-breaking heat will continue across most of the central and eastern U.S through Friday then focusing on the eastern U.S. through the Independence Day weekend. Peak heat indices of up to 115 degrees are possible. Strong to severe thunderstorms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians today. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

Lat: 43.73°NLon: 103.62°WElev: 5600ft.

Fair

77°F

25°C

Humidity 26%
Wind Speed SW 10 G 20 mph
Barometer 30.06 in (1011.3 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 2 Jul 12:53 pm MDT
Extended Forecast for

20 Miles SSE Newcastle WY

  • This Afternoon

    This Afternoon: Isolated showers and thunderstorms after 2pm.  Widespread haze. Mostly sunny, with a steady temperature around 83. South wind around 10 mph, with gusts as high as 22 mph.  Chance of precipitation is 20%.

    High: 83 °F

    Isolated
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms.  Widespread haze before midnight. Partly cloudy, with a low around 63. Southeast wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 22 mph.

    Low: 63 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after noon.  Widespread haze before noon. Mostly sunny, with a high near 83. Calm wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 21 mph.

    High: 83 °F

    Haze then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 57. Northeast wind 5 to 8 mph becoming light and variable  after midnight. Winds could gust as high as 20 mph.

    Low: 57 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Independence Day

    Independence Day: A 20 percent chance of showers and thunderstorms after noon.  Sunny, with a high near 82. Calm wind becoming southeast 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 82 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60. East wind 5 to 8 mph, with gusts as high as 18 mph.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 91.

    High: 91 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

This Afternoon
Isolated showers and thunderstorms after 2pm. Widespread haze. Mostly sunny, with a steady temperature around 83. South wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tonight
A 20 percent chance of showers and thunderstorms. Widespread haze before midnight. Partly cloudy, with a low around 63. Southeast wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 22 mph.
Friday
A 40 percent chance of showers and thunderstorms after noon. Widespread haze before noon. Mostly sunny, with a high near 83. Calm wind becoming south 5 to 8 mph in the morning. Winds could gust as high as 21 mph.
Friday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57. Northeast wind 5 to 8 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Independence Day
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 82. Calm wind becoming southeast 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Saturday Night
Mostly clear, with a low around 60. East wind 5 to 8 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 91.
Sunday Night
Partly cloudy, with a low around 65.
Monday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91.
Monday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 65.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
20 Miles SSE Newcastle WY
 43.61°N 104.01°W (Elev. 4386 ft)
12:37 pm MDT Jul 2, 2026
1pm MDT Jul 2, 2026-6pm MDT Jul 8, 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