Dangerous heat and humidity from the central U.S. to East Coast this weekend

Hot and very humid conditions will push the heat index to well over 100 degrees across a large portion of the central and eastern U.S. Excessive Heat Warnings and Heat Advisories are in effect for much of the Plains, Miss. Valley, Midwest, Ohio Valley, Mid-Atlantic and southern states. Be very cautious if you must do outdoor activities in these areas during the afternoon and evening this weekend. Read More >

Current conditions at

ST. MARY (SRYM8)

Lat: 48.739856°NLon: 113.432267°WElev: 4560ft.

NA

57°F

14°C

Humidity 61%
Wind Speed SSW 17 G 28 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 23 Jul 7:11 am MDT
Extended Forecast for

St Mary MT

  • Today

    Today: Isolated showers, with thunderstorms also possible after noon.  Partly sunny, with a high near 69. West southwest wind 10 to 14 mph, with gusts as high as 20 mph.  Chance of precipitation is 20%.

    Isolated
    Showers then
    Slight Chance
    T-storms

    High: 69 °F

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 2am.  Mostly clear, with a low around 49. West southwest wind 8 to 13 mph.

    Slight Chance
    T-storms

    Low: 49 °F

  • Sunday

    Sunday: Sunny, with a high near 76. West southwest wind around 8 mph.

    Sunny

    High: 76 °F

  • Sunday
    Night

    Sunday Night: Clear, with a low around 50. West southwest wind around 6 mph.

    Clear

    Low: 50 °F

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after noon.  Sunny, with a high near 80. Light west northwest wind.

    Sunny then
    Slight Chance
    T-storms

    High: 80 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 50.

    Partly Cloudy

    Low: 50 °F

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 80.

    Mostly Sunny
    then Chance
    T-storms

    High: 80 °F

  • Tuesday
    Night

    Tuesday Night: A chance of showers and thunderstorms, mainly before midnight.  Partly cloudy, with a low around 51.

    Chance
    T-storms

    Low: 51 °F

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, mainly after noon.  Mostly sunny, with a high near 72.

    Chance
    T-storms

    High: 72 °F

Detailed Forecast

Today
Isolated showers, with thunderstorms also possible after noon. Partly sunny, with a high near 69. West southwest wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Tonight
A 20 percent chance of showers and thunderstorms before 2am. Mostly clear, with a low around 49. West southwest wind 8 to 13 mph.
Sunday
Sunny, with a high near 76. West southwest wind around 8 mph.
Sunday Night
Clear, with a low around 50. West southwest wind around 6 mph.
Monday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 80. Light west northwest wind.
Monday Night
Partly cloudy, with a low around 50.
Tuesday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80.
Tuesday Night
A chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 51.
Wednesday
A chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 72.
Wednesday Night
A chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 49.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 74.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 77.
Click Map For Forecast
Point Forecast:
St Mary MT
 48.74°N 113.44°W (Elev. 4554 ft)
2:12 am MDT Jul 23, 2016
7am MDT Jul 23, 2016-6pm MDT Jul 29, 2016
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database