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As of 08:22 MDT

Weather in Saint Mary, MT

28°Current weather

Saint Mary, Wednesday, 28 October, 08:22

Light snow. Feels like 22°. High 33°, low 24°.

Pressure29.91 inHg
Wind5.1 mph SW
Humidity93%
Visibility5.7 mi
Dew point27°
Thu, 2933° / 21°0.02Light snow
33 °Light snow

Saint Mary, Thursday, 29 October

Light snow. High 33°, low 21°.

Pressure30.18 inHg
Wind1.2 mph SE
Humidity94%
Visibility6.2 mi
Dew point25°
Fri, 3031° / 24°0Overcast
31 °Overcast

Saint Mary, Friday, 30 October

Overcast. High 31°, low 24°.

Pressure30.15 inHg
Wind1.1 mph NE
Humidity99%
Visibility—
Dew point28°
Sat, 3143° / 25°0Overcast
43 °Overcast

Saint Mary, Saturday, 31 October

Overcast. High 43°, low 25°.

Pressure29.97 inHg
Wind2.6 mph SW
Humidity67%
Visibility6.2 mi
Dew point30°
Sun, 0133° / 23°0.39Snow
33 °Snow

Saint Mary, Sunday, 1 November

Snow. High 33°, low 23°.

Pressure29.94 inHg
Wind5.4 mph N
Humidity94%
Visibility—
Dew point32°
Mon, 0237° / 16°0Partly cloudy
37 °Partly cloudy

Saint Mary, Monday, 2 November

Partly cloudy. High 37°, low 16°.

Pressure30.39 inHg
Wind10.9 mph SW
Humidity82%
Visibility—
Dew point27°
Tue, 0342° / 32°0Overcast
42 °Overcast

Saint Mary, Tuesday, 3 November

Overcast. High 42°, low 32°.

Pressure30.18 inHg
Wind15.4 mph SW
Humidity62%
Visibility—
Dew point28°
Wed, 0447° / 31°0Overcast
47 °Overcast

Saint Mary, Wednesday, 4 November

Overcast. High 47°, low 31°.

Pressure30.00 inHg
Wind7.7 mph SW
Humidity55%
Visibility—
Dew point28°
Thu, 0546° / 34°0Overcast
46 °Overcast

Saint Mary, Thursday, 5 November

Overcast. High 46°, low 34°.

Pressure29.88 inHg
Wind6.8 mph SW
Humidity52%
Visibility—
Dew point26°
Fri, 0644° / 33°0Overcast
44 °Overcast

Saint Mary, Friday, 6 November

Overcast. High 44°, low 33°.

Pressure29.94 inHg
Wind11 mph SW
Humidity59%
Visibility—
Dew point28°
Sat, 0747° / 34°0Clear
47 °Clear

Saint Mary, Saturday, 7 November

Clear. High 47°, low 34°.

Pressure29.80 inHg
Wind12.3 mph SW
Humidity60%
Visibility—
Dew point31°
Sun, 0840° / 36°0.22Snow
40 °Snow

Saint Mary, Sunday, 8 November

Snow. High 40°, low 36°.

Pressure29.94 inHg
Wind7 mph W
Humidity97%
Visibility—
Dew point36°
Mon, 0939° / 31°0Overcast
39 °Overcast

Saint Mary, Monday, 9 November

Overcast. High 39°, low 31°.

Pressure30.27 inHg
Wind9.5 mph SW
Humidity82%
Visibility—
Dew point32°
Tue, 1043° / 31°0Overcast
43 °Overcast

Saint Mary, Tuesday, 10 November

Overcast. High 43°, low 31°.

Pressure29.91 inHg
Wind16.6 mph SW
Humidity62%
Visibility—
Dew point28°
Wed, 1143° / 36°0Mostly clear
43 °Mostly clear

Saint Mary, Wednesday, 11 November

Mostly clear. High 43°, low 36°.

Pressure29.80 inHg
Wind21.5 mph SW
Humidity74%
Visibility—
Dew point34°
Thu, 1249° / 37°0Overcast
49 °Overcast

Saint Mary, Thursday, 12 November

Overcast. High 49°, low 37°.

Pressure29.47 inHg
Wind15.2 mph SW
Humidity74%
Visibility—
Dew point37°

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.