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As of 20:45 MDT

Weather in Saint Mary, MT

31°Current weather

Saint Mary, Friday, 30 October, 20:45

Overcast. Feels like 31°. High 33°, low 26°.

Pressure30.09 inHg
Wind0.9 mph S
Humidity94%
Visibility—
Dew point29°
Sat, 3144° / 28°0Overcast
44 °Overcast

Saint Mary, Saturday, 31 October

Overcast. High 44°, low 28°.

Pressure29.97 inHg
Wind3.5 mph SW
Humidity69%
Visibility6.2 mi
Dew point29°
Sun, 0137° / 26°0.05Snow
37 °Snow

Saint Mary, Sunday, 1 November

Snow. High 37°, low 26°.

Pressure29.94 inHg
Wind0.4 mph N
Humidity83%
Visibility4.3 mi
Dew point30°
Mon, 0237° / 24°0Mostly clear
37 °Mostly clear

Saint Mary, Monday, 2 November

Mostly clear. High 37°, low 24°.

Pressure30.27 inHg
Wind5.3 mph SW
Humidity79%
Visibility—
Dew point27°
Tue, 0339° / 25°0Overcast
39 °Overcast

Saint Mary, Tuesday, 3 November

Overcast. High 39°, low 25°.

Pressure30.03 inHg
Wind6.4 mph SW
Humidity74%
Visibility6.2 mi
Dew point26°
Wed, 0443° / 23°0Mostly clear
43 °Mostly clear

Saint Mary, Wednesday, 4 November

Mostly clear. High 43°, low 23°.

Pressure30.09 inHg
Wind5.5 mph SW
Humidity66%
Visibility—
Dew point27°
Thu, 0539° / 27°0.01Light snow
39 °Light snow

Saint Mary, Thursday, 5 November

Light snow. High 39°, low 27°.

Pressure29.88 inHg
Wind16.8 mph SW
Humidity78%
Visibility—
Dew point30°
Fri, 0641° / 32°0.03Light snow
41 °Light snow

Saint Mary, Friday, 6 November

Light snow. High 41°, low 32°.

Pressure29.68 inHg
Wind20.4 mph SW
Humidity67%
Visibility—
Dew point30°
Sat, 0738° / 30°0Overcast
38 °Overcast

Saint Mary, Saturday, 7 November

Overcast. High 38°, low 30°.

Pressure30.24 inHg
Wind23.2 mph SW
Humidity72%
Visibility—
Dew point26°
Sun, 0845° / 36°0Overcast
45 °Overcast

Saint Mary, Sunday, 8 November

Overcast. High 45°, low 36°.

Pressure30.06 inHg
Wind21.5 mph SW
Humidity46%
Visibility—
Dew point24°
Mon, 0954° / 39°0Overcast
54 °Overcast

Saint Mary, Monday, 9 November

Overcast. High 54°, low 39°.

Pressure29.88 inHg
Wind12.7 mph SW
Humidity42%
Visibility—
Dew point27°
Tue, 1043° / 34°0Overcast
43 °Overcast

Saint Mary, Tuesday, 10 November

Overcast. High 43°, low 34°.

Pressure29.97 inHg
Wind14.3 mph SW
Humidity70%
Visibility—
Dew point29°
Wed, 1141° / 33°0.03Snow
41 °Snow

Saint Mary, Wednesday, 11 November

Snow. High 41°, low 33°.

Pressure29.68 inHg
Wind14.8 mph SW
Humidity88%
Visibility—
Dew point36°
Thu, 1235° / 32°0.03Light snow
35 °Light snow

Saint Mary, Thursday, 12 November

Light snow. High 35°, low 32°.

Pressure29.94 inHg
Wind23 mph SW
Humidity82%
Visibility—
Dew point30°
Fri, 1339° / 30°0Overcast
39 °Overcast

Saint Mary, Friday, 13 November

Overcast. High 39°, low 30°.

Pressure29.94 inHg
Wind18.5 mph SW
Humidity69%
Visibility—
Dew point26°
Sat, 1440° / 34°0Overcast
40 °Overcast

Saint Mary, Saturday, 14 November

Overcast. High 40°, low 34°.

Pressure29.62 inHg
Wind13.1 mph SW
Humidity77%
Visibility—
Dew point31°

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.