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As of 03:16 MDT

Weather in Saint Mary, MT

27°Current weather

Saint Mary, Friday, 30 October, 03:16

Overcast. Feels like 27°. High 40°, low 26°.

Pressure30.15 inHg
Wind2.1 mph SE
Humidity94%
Visibility<0.1 mi
Dew point26°
Sat, 3144° / 27°0Partly cloudy
44 °Partly cloudy

Saint Mary, Saturday, 31 October

Partly cloudy. High 44°, low 27°.

Pressure30.00 inHg
Wind4 mph SW
Humidity69%
Visibility6.2 mi
Dew point28°
Sun, 0140° / 23°0Overcast
40 °Overcast

Saint Mary, Sunday, 1 November

Overcast. High 40°, low 23°.

Pressure29.94 inHg
Wind0.1 mph NE
Humidity66%
Visibility6.2 mi
Dew point25°
Mon, 0236° / 23°0Mostly clear
36 °Mostly clear

Saint Mary, Monday, 2 November

Mostly clear. High 36°, low 23°.

Pressure30.33 inHg
Wind6 mph SW
Humidity83%
Visibility0.4 mi
Dew point28°
Tue, 0341° / 31°0Overcast
41 °Overcast

Saint Mary, Tuesday, 3 November

Overcast. High 41°, low 31°.

Pressure30.15 inHg
Wind13 mph SW
Humidity70%
Visibility—
Dew point29°
Wed, 0445° / 27°0Clear
45 °Clear

Saint Mary, Wednesday, 4 November

Clear. High 45°, low 27°.

Pressure30.18 inHg
Wind5.9 mph SW
Humidity63%
Visibility—
Dew point28°
Thu, 0544° / 34°0Overcast
44 °Overcast

Saint Mary, Thursday, 5 November

Overcast. High 44°, low 34°.

Pressure29.71 inHg
Wind15.7 mph SW
Humidity62%
Visibility—
Dew point29°
Fri, 0639° / 33°0Overcast
39 °Overcast

Saint Mary, Friday, 6 November

Overcast. High 39°, low 33°.

Pressure29.88 inHg
Wind21.5 mph SW
Humidity78%
Visibility—
Dew point31°
Sat, 0741° / 32°0Overcast
41 °Overcast

Saint Mary, Saturday, 7 November

Overcast. High 41°, low 32°.

Pressure30.15 inHg
Wind23.2 mph SW
Humidity73%
Visibility—
Dew point30°
Sun, 0853° / 43°0Overcast
53 °Overcast

Saint Mary, Sunday, 8 November

Overcast. High 53°, low 43°.

Pressure29.94 inHg
Wind17.8 mph SW
Humidity53%
Visibility—
Dew point32°
Mon, 0946° / 38°0Partly cloudy
46 °Partly cloudy

Saint Mary, Monday, 9 November

Partly cloudy. High 46°, low 38°.

Pressure29.53 inHg
Wind14.9 mph SW
Humidity54%
Visibility—
Dew point29°
Tue, 1038° / 28°0.03Light snow
38 °Light snow

Saint Mary, Tuesday, 10 November

Light snow. High 38°, low 28°.

Pressure29.35 inHg
Wind16.5 mph SW
Humidity86%
Visibility—
Dew point33°
Wed, 1134° / 27°0Overcast
34 °Overcast

Saint Mary, Wednesday, 11 November

Overcast. High 34°, low 27°.

Pressure29.44 inHg
Wind19.8 mph SW
Humidity70%
Visibility—
Dew point24°
Thu, 1232° / 26°0.05Light snow
32 °Light snow

Saint Mary, Thursday, 12 November

Light snow. High 32°, low 26°.

Pressure29.91 inHg
Wind9.5 mph NW
Humidity67%
Visibility—
Dew point21°
Fri, 1335° / 29°0.07Light snow
35 °Light snow

Saint Mary, Friday, 13 November

Light snow. High 35°, low 29°.

Pressure30.30 inHg
Wind8.6 mph NW
Humidity75%
Visibility—
Dew point26°
Sat, 1441° / 32°0.02Light snow
41 °Light snow

Saint Mary, Saturday, 14 November

Light snow. High 41°, low 32°.

Pressure30.24 inHg
Wind4.6 mph N
Humidity84%
Visibility—
Dew point33°

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.