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As of 06:00 MST

Weather in Saint Mary, MT

43°Current weather

Saint Mary, Sunday, 8 November, 06:00

Overcast. Feels like 38°. High 48°, low 37°.

Pressure29.77 inHg
Wind8.2 mph SW
Humidity65%
Visibility6.2 mi
Dew point32°
Mon, 0943° / 34°0Light rain
43 °Light rain

Saint Mary, Monday, 9 November

Light rain. High 43°, low 34°.

Pressure30.06 inHg
Wind8.9 mph SW
Humidity74%
Visibility6.2 mi
Dew point27°
Tue, 1038° / 35°0.04Light rain
38 °Light rain

Saint Mary, Tuesday, 10 November

Light rain. High 38°, low 35°.

Pressure30.09 inHg
Wind16.5 mph SW
Humidity78%
Visibility6.2 mi
Dew point29°
Wed, 1147° / 37°0Mostly clear
47 °Mostly clear

Saint Mary, Wednesday, 11 November

Mostly clear. High 47°, low 37°.

Pressure30.06 inHg
Wind12.3 mph SW
Humidity63%
Visibility6.2 mi
Dew point35°
Thu, 1252° / 38°0Overcast
52 °Overcast

Saint Mary, Thursday, 12 November

Overcast. High 52°, low 38°.

Pressure29.91 inHg
Wind8.5 mph SW
Humidity47%
Visibility—
Dew point29°
Fri, 1348° / 36°0Overcast
48 °Overcast

Saint Mary, Friday, 13 November

Overcast. High 48°, low 36°.

Pressure29.83 inHg
Wind11.8 mph SW
Humidity48%
Visibility—
Dew point28°
Sat, 1450° / 39°0Partly cloudy
50 °Partly cloudy

Saint Mary, Saturday, 14 November

Partly cloudy. High 50°, low 39°.

Pressure29.80 inHg
Wind16.4 mph SW
Humidity51%
Visibility—
Dew point30°
Sun, 1555° / 41°0Overcast
55 °Overcast

Saint Mary, Sunday, 15 November

Overcast. High 55°, low 41°.

Pressure29.68 inHg
Wind10 mph SW
Humidity40%
Visibility—
Dew point26°
Mon, 1642° / 31°0.1Light snow
42 °Light snow

Saint Mary, Monday, 16 November

Light snow. High 42°, low 31°.

Pressure29.77 inHg
Wind18.4 mph SW
Humidity89%
Visibility—
Dew point33°
Tue, 1739° / 26°0Mostly clear
39 °Mostly clear

Saint Mary, Tuesday, 17 November

Mostly clear. High 39°, low 26°.

Pressure30.09 inHg
Wind9.5 mph SW
Humidity57%
Visibility—
Dew point22°
Wed, 1841° / 31°0Overcast
41 °Overcast

Saint Mary, Wednesday, 18 November

Overcast. High 41°, low 31°.

Pressure29.85 inHg
Wind7 mph SW
Humidity60%
Visibility—
Dew point25°
Thu, 1937° / 29°0Overcast
37 °Overcast

Saint Mary, Thursday, 19 November

Overcast. High 37°, low 29°.

Pressure29.91 inHg
Wind15.3 mph SW
Humidity74%
Visibility—
Dew point28°
Fri, 2038° / 32°0Overcast
38 °Overcast

Saint Mary, Friday, 20 November

Overcast. High 38°, low 32°.

Pressure30.15 inHg
Wind11.6 mph SW
Humidity90%
Visibility—
Dew point33°
Sat, 2144° / 33°0Overcast
44 °Overcast

Saint Mary, Saturday, 21 November

Overcast. High 44°, low 33°.

Pressure29.83 inHg
Wind12 mph SW
Humidity62%
Visibility—
Dew point29°
Sun, 2237° / 33°0.02Light snow
37 °Light snow

Saint Mary, Sunday, 22 November

Light snow. High 37°, low 33°.

Pressure29.77 inHg
Wind22.9 mph SW
Humidity81%
Visibility—
Dew point31°
Mon, 2338° / 32°0Overcast
38 °Overcast

Saint Mary, Monday, 23 November

Overcast. High 38°, low 32°.

Pressure29.91 inHg
Wind21.7 mph SW
Humidity84%
Visibility—
Dew point32°

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.