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As of 18:59 MST

Weather in Saint Mary, MT

40°Current weather

Saint Mary, Sunday, 8 November, 18:59

Overcast. Feels like 31°. High 52°, low 37°.

Pressure30.03 inHg
Wind17.3 mph SW
Humidity70%
Visibility6.2 mi
Dew point30°
Mon, 0942° / 33°0Light snow
42 °Light snow

Saint Mary, Monday, 9 November

Light snow. High 42°, low 33°.

Pressure30.09 inHg
Wind9.6 mph SW
Humidity76%
Visibility6.2 mi
Dew point27°
Tue, 1045° / 38°0.04Light rain
45 °Light rain

Saint Mary, Tuesday, 10 November

Light rain. High 45°, low 38°.

Pressure30.03 inHg
Wind11.5 mph SW
Humidity86%
Visibility4.0 mi
Dew point35°
Wed, 1146° / 39°0Overcast
46 °Overcast

Saint Mary, Wednesday, 11 November

Overcast. High 46°, low 39°.

Pressure30.06 inHg
Wind12.8 mph SW
Humidity66%
Visibility6.2 mi
Dew point35°
Thu, 1253° / 37°0Overcast
53 °Overcast

Saint Mary, Thursday, 12 November

Overcast. High 53°, low 37°.

Pressure29.88 inHg
Wind5.8 mph SW
Humidity43%
Visibility6.2 mi
Dew point27°
Fri, 1352° / 39°0Overcast
52 °Overcast

Saint Mary, Friday, 13 November

Overcast. High 52°, low 39°.

Pressure29.62 inHg
Wind9.6 mph SW
Humidity43%
Visibility—
Dew point28°
Sat, 1445° / 34°0.15Snow
45 °Snow

Saint Mary, Saturday, 14 November

Snow. High 45°, low 34°.

Pressure29.71 inHg
Wind13 mph SW
Humidity72%
Visibility—
Dew point30°
Sun, 1552° / 42°0Overcast
52 °Overcast

Saint Mary, Sunday, 15 November

Overcast. High 52°, low 42°.

Pressure29.65 inHg
Wind9.1 mph SW
Humidity37%
Visibility—
Dew point25°
Mon, 1643° / 29°0.01Light snow
43 °Light snow

Saint Mary, Monday, 16 November

Light snow. High 43°, low 29°.

Pressure29.80 inHg
Wind22 mph SW
Humidity81%
Visibility—
Dew point31°
Tue, 1733° / 25°0.02Light snow
33 °Light snow

Saint Mary, Tuesday, 17 November

Light snow. High 33°, low 25°.

Pressure30.27 inHg
Wind13.5 mph SW
Humidity64%
Visibility—
Dew point22°
Wed, 1833° / 22°0Partly cloudy
33 °Partly cloudy

Saint Mary, Wednesday, 18 November

Partly cloudy. High 33°, low 22°.

Pressure30.42 inHg
Wind11.1 mph SW
Humidity63%
Visibility—
Dew point19°
Thu, 1929° / 22°0Overcast
29 °Overcast

Saint Mary, Thursday, 19 November

Overcast. High 29°, low 22°.

Pressure30.27 inHg
Wind7 mph N
Humidity64%
Visibility—
Dew point17°
Fri, 2034° / 21°0Clear
34 °Clear

Saint Mary, Friday, 20 November

Clear. High 34°, low 21°.

Pressure30.21 inHg
Wind5.9 mph SE
Humidity43%
Visibility—
Dew point10°
Sat, 2145° / 26°0Clear
45 °Clear

Saint Mary, Saturday, 21 November

Clear. High 45°, low 26°.

Pressure29.77 inHg
Wind17.1 mph SW
Humidity43%
Visibility—
Dew point19°
Sun, 2232° / 21°0.15Light snow
32 °Light snow

Saint Mary, Sunday, 22 November

Light snow. High 32°, low 21°.

Pressure29.77 inHg
Wind19.5 mph SW
Humidity81%
Visibility—
Dew point26°
Mon, 2330° / 20°0Light snow
30 °Light snow

Saint Mary, Monday, 23 November

Light snow. High 30°, low 20°.

Pressure30.00 inHg
Wind11.7 mph SW
Humidity77%
Visibility—
Dew point21°

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.