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As of 00:45 MST

Weather in Saint Mary, MT

30°Current weather

Saint Mary, Monday, 2 November, 00:45

Overcast. Feels like 25°. High 31°, low 28°.

Pressure30.12 inHg
Wind4.8 mph W
Humidity95%
Visibility0.1 mi
Dew point29°
Tue, 0342° / 26°0Overcast
42 °Overcast

Saint Mary, Tuesday, 3 November

Overcast. High 42°, low 26°.

Pressure30.03 inHg
Wind5.3 mph SW
Humidity59%
Visibility6.2 mi
Dew point24°
Wed, 0445° / 23°0Partly cloudy
45 °Partly cloudy

Saint Mary, Wednesday, 4 November

Partly cloudy. High 45°, low 23°.

Pressure30.00 inHg
Wind0.3 mph SE
Humidity54%
Visibility6.2 mi
Dew point21°
Thu, 0537° / 28°0.02Snow
37 °Snow

Saint Mary, Thursday, 5 November

Snow. High 37°, low 28°.

Pressure30.00 inHg
Wind10.8 mph SW
Humidity79%
Visibility5.3 mi
Dew point29°
Fri, 0634° / 29°0.14Snow
34 °Snow

Saint Mary, Friday, 6 November

Snow. High 34°, low 29°.

Pressure29.97 inHg
Wind23.7 mph SW
Humidity90%
Visibility—
Dew point29°
Sat, 0738° / 27°0.01Light snow
38 °Light snow

Saint Mary, Saturday, 7 November

Light snow. High 38°, low 27°.

Pressure30.33 inHg
Wind17.8 mph SW
Humidity86%
Visibility—
Dew point28°
Sun, 0846° / 33°0Overcast
46 °Overcast

Saint Mary, Sunday, 8 November

Overcast. High 46°, low 33°.

Pressure30.00 inHg
Wind18.2 mph SW
Humidity64%
Visibility—
Dew point30°
Mon, 0948° / 35°0Overcast
48 °Overcast

Saint Mary, Monday, 9 November

Overcast. High 48°, low 35°.

Pressure30.03 inHg
Wind13.3 mph SW
Humidity66%
Visibility—
Dew point34°
Tue, 1051° / 38°0Overcast
51 °Overcast

Saint Mary, Tuesday, 10 November

Overcast. High 51°, low 38°.

Pressure30.09 inHg
Wind13.7 mph SW
Humidity62%
Visibility—
Dew point35°
Wed, 1155° / 42°0Partly cloudy
55 °Partly cloudy

Saint Mary, Wednesday, 11 November

Partly cloudy. High 55°, low 42°.

Pressure30.12 inHg
Wind13 mph SW
Humidity45%
Visibility—
Dew point33°
Thu, 1255° / 44°0Overcast
55 °Overcast

Saint Mary, Thursday, 12 November

Overcast. High 55°, low 44°.

Pressure29.85 inHg
Wind12 mph SW
Humidity46%
Visibility—
Dew point31°
Fri, 1346° / 36°0.01Light snow
46 °Light snow

Saint Mary, Friday, 13 November

Light snow. High 46°, low 36°.

Pressure29.56 inHg
Wind20.1 mph SW
Humidity52%
Visibility—
Dew point28°
Sat, 1440° / 36°0.23Snow
40 °Snow

Saint Mary, Saturday, 14 November

Snow. High 40°, low 36°.

Pressure29.80 inHg
Wind19.1 mph SW
Humidity87%
Visibility—
Dew point34°
Sun, 1543° / 34°0.06Light rain
43 °Light rain

Saint Mary, Sunday, 15 November

Light rain. High 43°, low 34°.

Pressure29.62 inHg
Wind24 mph SW
Humidity88%
Visibility—
Dew point40°
Mon, 1636° / 30°0Overcast
36 °Overcast

Saint Mary, Monday, 16 November

Overcast. High 36°, low 30°.

Pressure29.91 inHg
Wind17.2 mph SW
Humidity76%
Visibility—
Dew point28°
Tue, 1733° / 27°0Overcast
33 °Overcast

Saint Mary, Tuesday, 17 November

Overcast. High 33°, low 27°.

Pressure29.97 inHg
Wind22.6 mph SW
Humidity75%
Visibility—
Dew point25°

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.