Dangerous, Heat Wave Persists in the Eastern U.S.; Severe Weather Expected in the Central Plains and Mid-Atlantic

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Mid-South, and East Coast. Severe thunderstorms are expected to produce damaging wind gusts from the Upper Ohio Valley into the Mid Atlantic, and across the central Great Plains this afternoon and evening. Large hail and heavy rain is also possible across the Great Plains. Read More >

Current conditions at

Sioux Pass MT-16 MP 21 (MTSOO)

Lat: 47.91973°NLon: 104.32619°WElev: 2480.0ft.

unknown precip

57°F

14°C

Humidity 94%
Wind Speed SSE 0 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Last update 04 Jul 02:45 AM MDT
Extended Forecast for

9 Miles WNW Lambert MT

  • Overnight

    Overnight: Partly cloudy, with a low around 56. South wind around 5 mph.

    Low: 56 °F

    Partly Cloudy

  • Independence Day

    Independence Day: Sunny, with a high near 86. South wind 5 to 8 mph becoming west southwest in the afternoon.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62. Southwest wind 5 to 10 mph becoming southeast in the evening.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers after 5pm.  Sunny, with a high near 90. South wind 8 to 10 mph becoming north northwest in the afternoon.

    High: 90 °F

    Sunny then
    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms, then a chance of showers after midnight.  Mostly cloudy, with a low around 60. North wind 7 to 10 mph.  Chance of precipitation is 30%.

    Low: 60 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 80. North wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 80 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers and thunderstorms after midnight.  Mostly cloudy, with a low around 56. Northeast wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 56 °F

    Partly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 78. East wind 13 to 15 mph, with gusts as high as 24 mph.  Chance of precipitation is 70%.

    High: 78 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers.  Mostly cloudy, with a low around 55. East northeast wind 8 to 14 mph, with gusts as high as 22 mph.  Chance of precipitation is 50%.

    Low: 55 °F

    Chance
    T-storms then
    Slight Chance
    Showers

Detailed Forecast

Overnight
Partly cloudy, with a low around 56. South wind around 5 mph.
Independence Day
Sunny, with a high near 86. South wind 5 to 8 mph becoming west southwest in the afternoon.
Saturday Night
Mostly clear, with a low around 62. Southwest wind 5 to 10 mph becoming southeast in the evening.
Sunday
A 20 percent chance of showers after 5pm. Sunny, with a high near 90. South wind 8 to 10 mph becoming north northwest in the afternoon.
Sunday Night
A slight chance of showers and thunderstorms, then a chance of showers after midnight. Mostly cloudy, with a low around 60. North wind 7 to 10 mph. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 80. North wind 10 to 15 mph, with gusts as high as 23 mph.
Monday Night
A 40 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 56. Northeast wind 10 to 13 mph, with gusts as high as 20 mph.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. East wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Tuesday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 55. East northeast wind 8 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Wednesday
Partly sunny, with a high near 80. East wind 7 to 10 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58. East wind 9 to 11 mph, with gusts as high as 18 mph.
Thursday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WNW Lambert MT
 47.75°N 104.81°W (Elev. 2657 ft)
12:35 am MDT Jul 4, 2026
3am MDT Jul 4, 2026-6pm MDT Jul 10, 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