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As of 20:24 MDT

Weather in Saint Mary, MT

29°Current weather

Saint Mary, Thursday, 29 October, 20:24

Overcast. Feels like 25°. High 32°, low 25°.

Pressure30.18 inHg
Wind3.1 mph E
Humidity92%
Visibility2.4 mi
Dew point27°
Fri, 3041° / 25°0Overcast
41 °Overcast

Saint Mary, Friday, 30 October

Overcast. High 41°, low 25°.

Pressure30.15 inHg
Wind1.5 mph E
Humidity99%
Visibility—
Dew point27°
Sat, 3142° / 24°0Partly cloudy
42 °Partly cloudy

Saint Mary, Saturday, 31 October

Partly cloudy. High 42°, low 24°.

Pressure30.00 inHg
Wind4 mph SW
Humidity69%
Visibility6.2 mi
Dew point28°
Sun, 0140° / 22°0.16Snow
40 °Snow

Saint Mary, Sunday, 1 November

Snow. High 40°, low 22°.

Pressure29.94 inHg
Wind1.3 mph E
Humidity66%
Visibility6.2 mi
Dew point26°
Mon, 0238° / 27°0Clear
38 °Clear

Saint Mary, Monday, 2 November

Clear. High 38°, low 27°.

Pressure30.27 inHg
Wind2.8 mph SW
Humidity77%
Visibility2.3 mi
Dew point30°
Tue, 0338° / 28°0.01Light rain
38 °Light rain

Saint Mary, Tuesday, 3 November

Light rain. High 38°, low 28°.

Pressure30.18 inHg
Wind10.9 mph SW
Humidity75%
Visibility—
Dew point28°
Wed, 0443° / 26°0Clear
43 °Clear

Saint Mary, Wednesday, 4 November

Clear. High 43°, low 26°.

Pressure30.09 inHg
Wind3.5 mph E
Humidity63%
Visibility—
Dew point27°
Thu, 0544° / 31°0Overcast
44 °Overcast

Saint Mary, Thursday, 5 November

Overcast. High 44°, low 31°.

Pressure29.83 inHg
Wind10.2 mph SW
Humidity69%
Visibility—
Dew point29°
Fri, 0641° / 32°0Overcast
41 °Overcast

Saint Mary, Friday, 6 November

Overcast. High 41°, low 32°.

Pressure29.91 inHg
Wind12 mph SW
Humidity73%
Visibility—
Dew point31°
Sat, 0742° / 31°0Mostly clear
42 °Mostly clear

Saint Mary, Saturday, 7 November

Mostly clear. High 42°, low 31°.

Pressure29.94 inHg
Wind13.5 mph SW
Humidity75%
Visibility—
Dew point31°
Sun, 0835° / 30°0.06Light snow
35 °Light snow

Saint Mary, Sunday, 8 November

Light snow. High 35°, low 30°.

Pressure29.85 inHg
Wind21.2 mph SW
Humidity73%
Visibility—
Dew point28°
Mon, 0936° / 26°0Partly cloudy
36 °Partly cloudy

Saint Mary, Monday, 9 November

Partly cloudy. High 36°, low 26°.

Pressure30.03 inHg
Wind16.5 mph SW
Humidity73%
Visibility—
Dew point24°
Tue, 1042° / 31°0.06Light snow
42 °Light snow

Saint Mary, Tuesday, 10 November

Light snow. High 42°, low 31°.

Pressure29.59 inHg
Wind11.8 mph SW
Humidity58%
Visibility—
Dew point26°
Wed, 1135° / 29°0.22Snow
35 °Snow

Saint Mary, Wednesday, 11 November

Snow. High 35°, low 29°.

Pressure29.53 inHg
Wind22.1 mph SW
Humidity85%
Visibility—
Dew point30°
Thu, 1234° / 22°0.02Light snow
34 °Light snow

Saint Mary, Thursday, 12 November

Light snow. High 34°, low 22°.

Pressure29.77 inHg
Wind13.6 mph SW
Humidity78%
Visibility—
Dew point24°
Fri, 1332° / 20°0Overcast
32 °Overcast

Saint Mary, Friday, 13 November

Overcast. High 32°, low 20°.

Pressure29.83 inHg
Wind9.1 mph SW
Humidity70%
Visibility—
Dew point20°

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.