Cold Front to Bring Cooling and Heavy Rain in the East; Building Heat and Monsoon in the West

A slow moving cold front will bring temperatures back to near normal early this week in the East. Strong to severe storms ahead of the front may produce damaging winds and heavy rain that could cause flash flooding. Strengthening high pressure in the West will produce surging monsoon moisture with potential for flash flooding. Heat may become excessive in the Desert Southwest this week. Read More >

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

Lat: 48.74111°NLon: 113.43306°WElev: 4575ft.

NA

76°F

24°C

Humidity 31%
Wind Speed NA
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Heat Index77°F (25°C)
Last update 22 Jul 6:10 pm MDT
Extended Forecast for

St Mary MT

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am.  Partly cloudy, with a low around 54. Calm wind becoming south around 6 mph in the evening.  Chance of precipitation is 20%.

    Slight Chance
    T-storms then
    Slight Chance
    Showers

    Low: 54 °F

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly between 1pm and 2pm.  Sunny, with a high near 86. Calm wind becoming southwest around 6 mph in the afternoon.

    Sunny then
    Chance
    Showers

    High: 86 °F

  • Tuesday
    Night

    Tuesday Night: A chance of showers and thunderstorms before 3am, then a slight chance of showers.  Mostly cloudy, with a low around 55. Southwest wind around 6 mph.  Chance of precipitation is 50%.

    Chance
    T-storms then
    Slight Chance
    T-storms

    Low: 55 °F

  • Wednesday

    Wednesday: Sunny, with a high near 69. Breezy, with a southwest wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 48 mph.

    Mostly Sunny
    then Sunny
    and Breezy

    High: 69 °F

  • Wednesday
    Night

    Wednesday Night: Clear, with a low around 47. West southwest wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 39 mph.

    Clear

    Low: 47 °F

  • Thursday

    Thursday: Sunny, with a high near 73.

    Sunny

    High: 73 °F

  • Thursday
    Night

    Thursday Night: Clear, with a low around 46.

    Clear

    Low: 46 °F

  • Friday

    Friday: Sunny, with a high near 78.

    Sunny

    High: 78 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 50.

    Mostly Clear

    Low: 50 °F

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 4am. Partly cloudy, with a low around 54. Calm wind becoming south around 6 mph in the evening. Chance of precipitation is 20%.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly between 1pm and 2pm. Sunny, with a high near 86. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
A chance of showers and thunderstorms before 3am, then a slight chance of showers. Mostly cloudy, with a low around 55. Southwest wind around 6 mph. Chance of precipitation is 50%.
Wednesday
Sunny, with a high near 69. Breezy, with a southwest wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 48 mph.
Wednesday Night
Clear, with a low around 47. West southwest wind 15 to 20 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 39 mph.
Thursday
Sunny, with a high near 73.
Thursday Night
Clear, with a low around 46.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 50.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 46.
Monday
Sunny, with a high near 73.
Click Map For Forecast
Point Forecast:
St Mary MT
 48.76°N 113.44°W (Elev. 4741 ft)
4:44 pm MDT Jul 22, 2019
7pm MDT Jul 22, 2019-6pm MDT Jul 29, 2019
 
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Additional Resources

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