Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast from parts of the central High Plains into the Upper Midwest, and across parts of the Northeast. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Current conditions at

Granby-Grand County Airport (KGNB)

Lat: 40.09°NLon: 105.92°WElev: 8207ft.

Mostly Cloudy

68°F

20°C

Humidity 15%
Wind Speed W 12 G 17 mph
Barometer 30.13 in
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 30 Jun 8:55 pm MDT
Extended Forecast for

Saint Marys Glacier CO

Fire Weather Watch July 1, 12:00pm until July 1, 08:00pm
Click here for hazard details and duration
Fire Weather Watch
  • Tonight

    Tonight: Patchy smoke between 10pm and 1am. Mostly clear, with a low around 40. West wind 10 to 14 mph, with gusts as high as 22 mph.

    Low: 40 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Patchy smoke before 2pm, then patchy smoke after 3pm. Increasing clouds, with a high near 60. West wind 8 to 11 mph becoming east northeast in the afternoon. Winds could gust as high as 18 mph.

    High: 60 °F

    Patchy Smoke

  • Wednesday Night

    Wednesday Night: Patchy smoke between midnight and 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 41. East northeast wind 6 to 11 mph becoming west after midnight. Winds could gust as high as 18 mph.

    Low: 41 °F

    Patchy Smoke

  • Thursday

    Thursday: Mostly sunny, with a high near 62. West wind 6 to 10 mph, with gusts as high as 16 mph.

    High: 62 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 44. West wind 8 to 13 mph, with gusts as high as 21 mph.

    Low: 44 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 65. Breezy.

    High: 65 °F

    Sunny then
    Mostly Sunny
    and Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46. Breezy.

    Low: 46 °F

    Partly Cloudy
    and Breezy

  • Independence Day

    Independence Day: Mostly sunny, with a high near 63. Breezy.

    High: 63 °F

    Sunny and
    Breezy then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy smoke between 10pm and 1am. Mostly clear, with a low around 40. West wind 10 to 14 mph, with gusts as high as 22 mph.
Wednesday
Patchy smoke before 2pm, then patchy smoke after 3pm. Increasing clouds, with a high near 60. West wind 8 to 11 mph becoming east northeast in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Patchy smoke between midnight and 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 41. East northeast wind 6 to 11 mph becoming west after midnight. Winds could gust as high as 18 mph.
Thursday
Mostly sunny, with a high near 62. West wind 6 to 10 mph, with gusts as high as 16 mph.
Thursday Night
Partly cloudy, with a low around 44. West wind 8 to 13 mph, with gusts as high as 21 mph.
Friday
Sunny, with a high near 65. Breezy.
Friday Night
Partly cloudy, with a low around 46. Breezy.
Independence Day
Mostly sunny, with a high near 63. Breezy.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 63.
Sunday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 64.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 47. Breezy.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 66. Breezy.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys Glacier CO
 39.85°N 105.63°W (Elev. 11368 ft)
12:46 pm MDT Jun 30, 2026
9pm MDT Jun 30, 2026-6pm MDT Jul 7, 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