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As of 17:41 MDT

Weather in Saint Mary, MT

35°Current weather

Saint Mary, Saturday, 31 October, 17:41

Clear. Feels like 33°. High 36°, low 27°.

Pressure30.00 inHg
Wind3 mph SW
Humidity84%
Visibility1.6 mi
Dew point31°
Sun, 0136° / 27°0Overcast
36 °Overcast

Saint Mary, Sunday, 1 November

Overcast. High 36°, low 27°.

Pressure29.94 inHg
Wind0.9 mph NE
Humidity78%
Visibility6.2 mi
Dew point30°
Mon, 0238° / 21°0Clear
38 °Clear

Saint Mary, Monday, 2 November

Clear. High 38°, low 21°.

Pressure30.30 inHg
Wind6.5 mph SW
Humidity79%
Visibility6.2 mi
Dew point27°
Tue, 0344° / 28°0Overcast
44 °Overcast

Saint Mary, Tuesday, 3 November

Overcast. High 44°, low 28°.

Pressure30.03 inHg
Wind8 mph SW
Humidity63%
Visibility6.2 mi
Dew point24°
Wed, 0446° / 28°0Mostly clear
46 °Mostly clear

Saint Mary, Wednesday, 4 November

Mostly clear. High 46°, low 28°.

Pressure30.03 inHg
Wind0.2 mph E
Humidity58%
Visibility6.2 mi
Dew point23°
Thu, 0535° / 31°0.02Light snow
35 °Light snow

Saint Mary, Thursday, 5 November

Light snow. High 35°, low 31°.

Pressure30.00 inHg
Wind14.5 mph SW
Humidity85%
Visibility—
Dew point30°
Fri, 0635° / 31°0.42Snow
35 °Snow

Saint Mary, Friday, 6 November

Snow. High 35°, low 31°.

Pressure29.74 inHg
Wind26.5 mph SW
Humidity96%
Visibility—
Dew point33°
Sat, 0735° / 25°0Partly cloudy
35 °Partly cloudy

Saint Mary, Saturday, 7 November

Partly cloudy. High 35°, low 25°.

Pressure30.12 inHg
Wind16.7 mph SW
Humidity80%
Visibility—
Dew point27°
Sun, 0837° / 33°0.22Snow
37 °Snow

Saint Mary, Sunday, 8 November

Snow. High 37°, low 33°.

Pressure29.80 inHg
Wind26.9 mph SW
Humidity90%
Visibility—
Dew point34°
Mon, 0938° / 27°0Overcast
38 °Overcast

Saint Mary, Monday, 9 November

Overcast. High 38°, low 27°.

Pressure30.12 inHg
Wind15.5 mph SW
Humidity76%
Visibility—
Dew point28°
Tue, 1041° / 34°0Partly cloudy
41 °Partly cloudy

Saint Mary, Tuesday, 10 November

Partly cloudy. High 41°, low 34°.

Pressure29.94 inHg
Wind13.8 mph SW
Humidity92%
Visibility—
Dew point38°
Wed, 1144° / 31°0Overcast
44 °Overcast

Saint Mary, Wednesday, 11 November

Overcast. High 44°, low 31°.

Pressure29.59 inHg
Wind7.7 mph SW
Humidity74%
Visibility—
Dew point35°
Thu, 1236° / 31°0.03Light snow
36 °Light snow

Saint Mary, Thursday, 12 November

Light snow. High 36°, low 31°.

Pressure29.77 inHg
Wind5.5 mph SW
Humidity93%
Visibility—
Dew point33°
Fri, 1338° / 35°0Overcast
38 °Overcast

Saint Mary, Friday, 13 November

Overcast. High 38°, low 35°.

Pressure30.06 inHg
Wind11.6 mph SW
Humidity91%
Visibility—
Dew point36°
Sat, 1437° / 33°0Overcast
37 °Overcast

Saint Mary, Saturday, 14 November

Overcast. High 37°, low 33°.

Pressure30.27 inHg
Wind11.8 mph SW
Humidity85%
Visibility—
Dew point31°
Sun, 1541° / 33°0Overcast
41 °Overcast

Saint Mary, Sunday, 15 November

Overcast. High 41°, low 33°.

Pressure29.91 inHg
Wind17.3 mph SW
Humidity87%
Visibility—
Dew point35°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Saint Mary, MT are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Saint Mary, MT since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.