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As of 02:59 MDT

Weather in Saint Mary, MT

30°Current weather

Saint Mary, Wednesday, 28 October, 02:59

Overcast. Feels like 22°. High 33°, low 25°.

Pressure29.85 inHg
Wind9.3 mph W
Humidity91%
Visibility0.2 mi
Dew point27°
Thu, 2933° / 23°0.04Light snow
33 °Light snow

Saint Mary, Thursday, 29 October

Light snow. High 33°, low 23°.

Pressure30.18 inHg
Wind1.9 mph SE
Humidity95%
Visibility6.2 mi
Dew point25°
Fri, 3031° / 24°0Overcast
31 °Overcast

Saint Mary, Friday, 30 October

Overcast. High 31°, low 24°.

Pressure30.12 inHg
Wind1.4 mph E
Humidity98%
Visibility4.6 mi
Dew point28°
Sat, 3145° / 26°0Overcast
45 °Overcast

Saint Mary, Saturday, 31 October

Overcast. High 45°, low 26°.

Pressure29.94 inHg
Wind1.9 mph SW
Humidity64%
Visibility6.2 mi
Dew point29°
Sun, 0135° / 19°0.31Snow
35 °Snow

Saint Mary, Sunday, 1 November

Snow. High 35°, low 19°.

Pressure29.94 inHg
Wind3.8 mph W
Humidity92%
Visibility—
Dew point31°
Mon, 0236° / 17°0Partly cloudy
36 °Partly cloudy

Saint Mary, Monday, 2 November

Partly cloudy. High 36°, low 17°.

Pressure30.36 inHg
Wind15.4 mph SW
Humidity87%
Visibility—
Dew point29°
Tue, 0346° / 31°0Overcast
46 °Overcast

Saint Mary, Tuesday, 3 November

Overcast. High 46°, low 31°.

Pressure30.24 inHg
Wind16.6 mph SW
Humidity54%
Visibility—
Dew point25°
Wed, 0450° / 33°0Partly cloudy
50 °Partly cloudy

Saint Mary, Wednesday, 4 November

Partly cloudy. High 50°, low 33°.

Pressure30.00 inHg
Wind7.8 mph SW
Humidity49%
Visibility—
Dew point27°
Thu, 0547° / 36°0Overcast
47 °Overcast

Saint Mary, Thursday, 5 November

Overcast. High 47°, low 36°.

Pressure29.91 inHg
Wind14.5 mph SW
Humidity55%
Visibility—
Dew point31°
Fri, 0646° / 36°0Partly cloudy
46 °Partly cloudy

Saint Mary, Friday, 6 November

Partly cloudy. High 46°, low 36°.

Pressure29.85 inHg
Wind15.6 mph SW
Humidity56%
Visibility—
Dew point29°
Sat, 0751° / 37°0Clear
51 °Clear

Saint Mary, Saturday, 7 November

Clear. High 51°, low 37°.

Pressure29.71 inHg
Wind12.7 mph SW
Humidity58%
Visibility—
Dew point33°
Sun, 0843° / 33°0Overcast
43 °Overcast

Saint Mary, Sunday, 8 November

Overcast. High 43°, low 33°.

Pressure29.83 inHg
Wind23.2 mph SW
Humidity73%
Visibility—
Dew point32°
Mon, 0939° / 34°0.42Snow
39 °Snow

Saint Mary, Monday, 9 November

Snow. High 39°, low 34°.

Pressure29.83 inHg
Wind27.7 mph SW
Humidity94%
Visibility—
Dew point35°
Tue, 1037° / 32°0.13Light snow
37 °Light snow

Saint Mary, Tuesday, 10 November

Light snow. High 37°, low 32°.

Pressure30.12 inHg
Wind19.2 mph SW
Humidity85%
Visibility—
Dew point32°
Wed, 1138° / 30°0.28Snow
38 °Snow

Saint Mary, Wednesday, 11 November

Snow. High 38°, low 30°.

Pressure29.65 inHg
Wind21.7 mph SW
Humidity76%
Visibility—
Dew point31°
Thu, 1234° / 27°0Overcast
34 °Overcast

Saint Mary, Thursday, 12 November

Overcast. High 34°, low 27°.

Pressure29.91 inHg
Wind12.4 mph SW
Humidity86%
Visibility—
Dew point28°

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.