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As of 03:16 MST

Weather in Saint Mary, MT

29°Current weather

Saint Mary, Friday, 13 November, 03:16

Overcast. Feels like 26°. High 46°, low 28°.

Pressure29.71 inHg
Wind3.2 mph W
Humidity88%
Visibility6.2 mi
Dew point26°
Sat, 1439° / 29°0Overcast
39 °Overcast

Saint Mary, Saturday, 14 November

Overcast. High 39°, low 29°.

Pressure29.65 inHg
Wind12.5 mph SW
Humidity64%
Visibility6.2 mi
Dew point30°
Sun, 1541° / 33°0Overcast
41 °Overcast

Saint Mary, Sunday, 15 November

Overcast. High 41°, low 33°.

Pressure29.83 inHg
Wind14.5 mph SW
Humidity64%
Visibility6.2 mi
Dew point27°
Mon, 1637° / 30°0.01Light rain
37 °Light rain

Saint Mary, Monday, 16 November

Light rain. High 37°, low 30°.

Pressure29.94 inHg
Wind10 mph SW
Humidity78%
Visibility6.2 mi
Dew point30°
Tue, 1734° / 28°0.02Light snow
34 °Light snow

Saint Mary, Tuesday, 17 November

Light snow. High 34°, low 28°.

Pressure30.00 inHg
Wind6.7 mph SW
Humidity82%
Visibility—
Dew point28°
Wed, 1830° / 21°0.06Light snow
30 °Light snow

Saint Mary, Wednesday, 18 November

Light snow. High 30°, low 21°.

Pressure29.91 inHg
Wind4.9 mph SW
Humidity91%
Visibility—
Dew point26°
Thu, 1934° / 23°0Overcast
34 °Overcast

Saint Mary, Thursday, 19 November

Overcast. High 34°, low 23°.

Pressure30.24 inHg
Wind4.9 mph SW
Humidity65%
Visibility—
Dew point21°
Fri, 2041° / 23°0Clear
41 °Clear

Saint Mary, Friday, 20 November

Clear. High 41°, low 23°.

Pressure30.09 inHg
Wind7.5 mph SW
Humidity49%
Visibility—
Dew point19°
Sat, 2142° / 28°0Partly cloudy
42 °Partly cloudy

Saint Mary, Saturday, 21 November

Partly cloudy. High 42°, low 28°.

Pressure29.83 inHg
Wind14.6 mph SW
Humidity41%
Visibility—
Dew point18°
Sun, 2230° / 8°0.18Snow
30 °Snow

Saint Mary, Sunday, 22 November

Snow. High 30°, low 8°.

Pressure30.33 inHg
Wind12 mph N
Humidity84%
Visibility—
Dew point16°
Mon, 2319° / 4°0Mostly clear
19 °Mostly clear

Saint Mary, Monday, 23 November

Mostly clear. High 19°, low 4°.

Pressure30.47 inHg
Wind8.9 mph SW
Humidity60%
Visibility—
Dew point4°
Tue, 2428° / 17°0Overcast
28 °Overcast

Saint Mary, Tuesday, 24 November

Overcast. High 28°, low 17°.

Pressure30.18 inHg
Wind10.8 mph SW
Humidity83%
Visibility—
Dew point20°
Wed, 2532° / 23°0Overcast
32 °Overcast

Saint Mary, Wednesday, 25 November

Overcast. High 32°, low 23°.

Pressure30.24 inHg
Wind29 mph SW
Humidity89%
Visibility—
Dew point26°
Thu, 2635° / 33°0.15Snow
35 °Snow

Saint Mary, Thursday, 26 November

Snow. High 35°, low 33°.

Pressure30.00 inHg
Wind27.5 mph SW
Humidity95%
Visibility—
Dew point33°
Fri, 2733° / 27°0.04Light snow
33 °Light snow

Saint Mary, Friday, 27 November

Light snow. High 33°, low 27°.

Pressure30.12 inHg
Wind14 mph SW
Humidity87%
Visibility—
Dew point29°
Sat, 2833° / 27°0.01Light snow
33 °Light snow

Saint Mary, Saturday, 28 November

Light snow. High 33°, low 27°.

Pressure29.74 inHg
Wind13.7 mph SW
Humidity88%
Visibility—
Dew point28°

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.