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As of 20:42 MST

Weather in Saint Mary, MT

31°Current weather

Saint Mary, Friday, 13 November, 20:42

Partly cloudy. Feels like 26°. High 46°, low 26°.

Pressure29.47 inHg
Wind4.3 mph SW
Humidity86%
Visibility6.2 mi
Dew point27°
Sat, 1434° / 24°0Overcast
34 °Overcast

Saint Mary, Saturday, 14 November

Overcast. High 34°, low 24°.

Pressure29.68 inHg
Wind11.8 mph SW
Humidity68%
Visibility6.2 mi
Dew point31°
Sun, 1541° / 23°0Clear
41 °Clear

Saint Mary, Sunday, 15 November

Clear. High 41°, low 23°.

Pressure29.85 inHg
Wind7.4 mph S
Humidity68%
Visibility6.2 mi
Dew point27°
Mon, 1638° / 30°0Overcast
38 °Overcast

Saint Mary, Monday, 16 November

Overcast. High 38°, low 30°.

Pressure29.91 inHg
Wind7.4 mph SW
Humidity79%
Visibility6.2 mi
Dew point32°
Tue, 1736° / 28°0Light snow
36 °Light snow

Saint Mary, Tuesday, 17 November

Light snow. High 36°, low 28°.

Pressure29.94 inHg
Wind2.7 mph W
Humidity83%
Visibility6.2 mi
Dew point22°
Wed, 1833° / 25°0Overcast
33 °Overcast

Saint Mary, Wednesday, 18 November

Overcast. High 33°, low 25°.

Pressure30.12 inHg
Wind3 mph S
Humidity93%
Visibility—
Dew point27°
Thu, 1930° / 19°0.11Light snow
30 °Light snow

Saint Mary, Thursday, 19 November

Light snow. High 30°, low 19°.

Pressure30.15 inHg
Wind5.5 mph NE
Humidity86%
Visibility—
Dew point25°
Fri, 2023° / 14°0.04Light snow
23 °Light snow

Saint Mary, Friday, 20 November

Light snow. High 23°, low 14°.

Pressure30.33 inHg
Wind7.2 mph SW
Humidity84%
Visibility—
Dew point15°
Sat, 2130° / 16°0Mostly clear
30 °Mostly clear

Saint Mary, Saturday, 21 November

Mostly clear. High 30°, low 16°.

Pressure30.50 inHg
Wind8.7 mph SW
Humidity70%
Visibility—
Dew point17°
Sun, 2237° / 21°0Overcast
37 °Overcast

Saint Mary, Sunday, 22 November

Overcast. High 37°, low 21°.

Pressure30.30 inHg
Wind14.4 mph SW
Humidity54%
Visibility—
Dew point17°
Mon, 2335° / 30°0Overcast
35 °Overcast

Saint Mary, Monday, 23 November

Overcast. High 35°, low 30°.

Pressure30.06 inHg
Wind16 mph SW
Humidity49%
Visibility—
Dew point17°
Tue, 2438° / 27°0.01Light snow
38 °Light snow

Saint Mary, Tuesday, 24 November

Light snow. High 38°, low 27°.

Pressure30.00 inHg
Wind10.9 mph SW
Humidity78%
Visibility—
Dew point28°
Wed, 2536° / 30°0Light snow
36 °Light snow

Saint Mary, Wednesday, 25 November

Light snow. High 36°, low 30°.

Pressure29.85 inHg
Wind10.2 mph SW
Humidity83%
Visibility—
Dew point30°
Thu, 2632° / 26°0.02Light snow
32 °Light snow

Saint Mary, Thursday, 26 November

Light snow. High 32°, low 26°.

Pressure29.91 inHg
Wind6.5 mph SW
Humidity89%
Visibility—
Dew point27°
Fri, 2732° / 25°0Overcast
32 °Overcast

Saint Mary, Friday, 27 November

Overcast. High 32°, low 25°.

Pressure30.12 inHg
Wind15.8 mph SW
Humidity77%
Visibility—
Dew point25°
Sat, 2827° / 18°0.04Light snow
27 °Light snow

Saint Mary, Saturday, 28 November

Light snow. High 27°, low 18°.

Pressure30.12 inHg
Wind7.9 mph SW
Humidity82%
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.