Saint Mary, MT Weather Forecast and Current Conditions

WEATHER ALERTS - Winter Storm Warning

Current Conditions From Nearby Local Station

10°F
Feels Like 1°F  
Humidity 81% Dew Point 5°F Wind NNE 5 MPH Gusts 8 Barometer N/A
Solar Rad 54 w/m2
Report from a MADIS/MESONET weather station 0.3 mi. SW of central Saint Mary
at

Point Forecast at a Glance

FriDec 12
Fri Dec 12: Snow, High 31F, Low 13F
90%
31
13
SatDec 13
Sat Dec 13: Rain And Snow, High 44F, Low 37F
30%
44
37
SunDec 14
Sun Dec 14: Mostly Sunny, High 47F, Low 38F
47
38
MonDec 15
Mon Dec 15: Rain, High 48F, Low 35F
40%
48
35
TueDec 16
Tue Dec 16: Rain And Snow, High 44F, Low 25F
50%
44
25
WedDec 17
Wed Dec 17: Snow, High 35F, Low 21F
50%
35
21
ThuDec 18
Thu Dec 18: Snow, High 34F
50%
34
 

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7-Day Temperature Trend

Week Ahead Summary

Variable high temperatures through the week, ranging from 31°F to 48°F. Unsettled weather expected with wintry mix likely on at least 6 days.

Climate Context

This week's forecast shows temperatures running 10°F above the historical average for December. Normal highs for this period are around 30°F with lows around 16°F.

This Date in Weather History

1882 - Portland, OR, was drenched with 7.66 inches of rain, a record 24 hour total for that location.

More on this and other weather history

Saint Mary, MT 7 Day Weather Forecast Details

Friday Dec 12

Snow

Day: Rain, possibly mixed with snow. High near 31. North northeast wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 3 inches possible.

Rain And Snow

Night: Rain and snow, possibly mixed with sleet, becoming all snow after midnight. Low around 13. West southwest wind 5 to 13 mph becoming northeast after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 80%. New snow and sleet accumulation of 2 to 4 inches possible.

Saturday Dec 13

Rain And Snow

Day: A chance of snow and freezing rain before 10am, then a chance of rain and snow between 10am and 11am. Mostly cloudy, with a high near 44. South southwest wind 5 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

Partly Cloudy

Night: Partly cloudy, with a low around 37. Southwest wind around 15 mph, with gusts as high as 33 mph.

Sunday Dec 14

Mostly Sunny

Day: Mostly sunny, with a high near 47. West southwest wind 16 to 18 mph, with gusts as high as 39 mph.

Mostly Cloudy

Night: Mostly cloudy, with a low around 38. West southwest wind 13 to 18 mph, with gusts as high as 38 mph.

Monday Dec 15

Rain

Day: A 40 percent chance of rain after 11am. Partly sunny, with a high near 48. Breezy, with a west southwest wind 16 to 22 mph, with gusts as high as 44 mph.

Snow

Night: Rain likely before 2am, then rain likely, possibly mixed with snow. Mostly cloudy, with a low around 35. Southwest wind 18 to 20 mph, with gusts as high as 45 mph.

Tuesday Dec 16

Rain And Snow

Day: Rain and snow likely, becoming all snow after 11am. Mostly cloudy, with a high near 44.

Snow

Night: Snow. Mostly cloudy, with a low around 25.

Wednesday Dec 17

Snow

Day: Snow likely. Partly sunny, with a high near 35.

Snow

Night: A chance of snow. Mostly cloudy, with a low around 21.

Thursday Dec 18

Snow

Day: Snow likely. Mostly cloudy, with a high near 34.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.