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As of 21:40 MST

Weather in Saint Mary, MT

34°Current weather

Saint Mary, Monday, 9 November, 21:40

Overcast. Feels like 32°. High 43°, low 29°.

Pressure29.97 inHg
Wind3.1 mph S
Humidity84%
Visibility6.2 mi
Dew point30°
Tue, 1043° / 35°0.07Light rain
43 °Light rain

Saint Mary, Tuesday, 10 November

Light rain. High 43°, low 35°.

Pressure30.09 inHg
Wind14 mph SW
Humidity76%
Visibility6.2 mi
Dew point32°
Wed, 1146° / 39°0Overcast
46 °Overcast

Saint Mary, Wednesday, 11 November

Overcast. High 46°, low 39°.

Pressure30.06 inHg
Wind12.5 mph SW
Humidity67%
Visibility6.2 mi
Dew point35°
Thu, 1254° / 37°0Overcast
54 °Overcast

Saint Mary, Thursday, 12 November

Overcast. High 54°, low 37°.

Pressure29.85 inHg
Wind7.9 mph SW
Humidity39%
Visibility6.2 mi
Dew point24°
Fri, 1355° / 33°0Overcast
55 °Overcast

Saint Mary, Friday, 13 November

Overcast. High 55°, low 33°.

Pressure29.56 inHg
Wind3.6 mph SW
Humidity40%
Visibility6.2 mi
Dew point23°
Sat, 1447° / 33°0Partly cloudy
47 °Partly cloudy

Saint Mary, Saturday, 14 November

Partly cloudy. High 47°, low 33°.

Pressure29.47 inHg
Wind13.2 mph SW
Humidity50%
Visibility—
Dew point28°
Sun, 1540° / 31°0Overcast
40 °Overcast

Saint Mary, Sunday, 15 November

Overcast. High 40°, low 31°.

Pressure29.80 inHg
Wind14.8 mph SW
Humidity75%
Visibility—
Dew point30°
Mon, 1639° / 33°0.01Light snow
39 °Light snow

Saint Mary, Monday, 16 November

Light snow. High 39°, low 33°.

Pressure29.80 inHg
Wind14.8 mph SW
Humidity88%
Visibility—
Dew point34°
Tue, 1734° / 28°0.02Light snow
34 °Light snow

Saint Mary, Tuesday, 17 November

Light snow. High 34°, low 28°.

Pressure29.91 inHg
Wind21.5 mph SW
Humidity68%
Visibility—
Dew point24°
Wed, 1838° / 25°0Mostly clear
38 °Mostly clear

Saint Mary, Wednesday, 18 November

Mostly clear. High 38°, low 25°.

Pressure29.97 inHg
Wind13 mph SW
Humidity61%
Visibility—
Dew point21°
Thu, 1936° / 25°0Mostly clear
36 °Mostly clear

Saint Mary, Thursday, 19 November

Mostly clear. High 36°, low 25°.

Pressure30.27 inHg
Wind9.8 mph SW
Humidity64%
Visibility—
Dew point22°
Fri, 2039° / 24°0Clear
39 °Clear

Saint Mary, Friday, 20 November

Clear. High 39°, low 24°.

Pressure30.39 inHg
Wind10.1 mph SW
Humidity42%
Visibility—
Dew point13°
Sat, 2140° / 26°0Clear
40 °Clear

Saint Mary, Saturday, 21 November

Clear. High 40°, low 26°.

Pressure30.45 inHg
Wind6.2 mph S
Humidity33%
Visibility—
Dew point10°
Sun, 2241° / 28°0Mostly clear
41 °Mostly clear

Saint Mary, Sunday, 22 November

Mostly clear. High 41°, low 28°.

Pressure30.03 inHg
Wind12.6 mph SW
Humidity51%
Visibility—
Dew point23°
Mon, 2335° / 26°0Clear
35 °Clear

Saint Mary, Monday, 23 November

Clear. High 35°, low 26°.

Pressure30.12 inHg
Wind7.9 mph N
Humidity59%
Visibility—
Dew point21°
Tue, 2435° / 23°0Mostly clear
35 °Mostly clear

Saint Mary, Tuesday, 24 November

Mostly clear. High 35°, low 23°.

Pressure30.15 inHg
Wind10.2 mph SW
Humidity62%
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.