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As of 02:22 MDT

Weather in St. Mary's, CO

36°Current weather

St. Mary's, Friday, 30 October, 02:22

Clear. Feels like 28°. High 45°, low 23°.

Pressure30.09 inHg
Wind12.7 mph SW
Humidity46%
Visibility6.2 mi
Dew point20°
Sat, 3139° / 28°0.02Light snow
39 °Light snow

St. Mary's, Saturday, 31 October

Light snow. High 39°, low 28°.

Pressure30.03 inHg
Wind7.1 mph NW
Humidity76%
Visibility6.2 mi
Dew point31°
Sun, 0149° / 29°0Overcast
49 °Overcast

St. Mary's, Sunday, 1 November

Overcast. High 49°, low 29°.

Pressure29.94 inHg
Wind5.1 mph SE
Humidity56%
Visibility6.2 mi
Dew point25°
Mon, 0235° / 26°0.31Snow
35 °Snow

St. Mary's, Monday, 2 November

Snow. High 35°, low 26°.

Pressure29.83 inHg
Wind8.4 mph NW
Humidity87%
Visibility1.8 mi
Dew point30°
Tue, 0332° / 19°0.04Light snow
32 °Light snow

St. Mary's, Tuesday, 3 November

Light snow. High 32°, low 19°.

Pressure30.33 inHg
Wind12.1 mph NW
Humidity95%
Visibility—
Dew point27°
Wed, 0448° / 21°0Partly cloudy
48 °Partly cloudy

St. Mary's, Wednesday, 4 November

Partly cloudy. High 48°, low 21°.

Pressure30.03 inHg
Wind6.7 mph SW
Humidity39%
Visibility—
Dew point19°
Thu, 0531° / 18°0.03Light snow
31 °Light snow

St. Mary's, Thursday, 5 November

Light snow. High 31°, low 18°.

Pressure29.71 inHg
Wind17.3 mph W
Humidity53%
Visibility—
Dew point15°
Fri, 0631° / 20°0.26Snow
31 °Snow

St. Mary's, Friday, 6 November

Snow. High 31°, low 20°.

Pressure29.77 inHg
Wind6.1 mph E
Humidity45%
Visibility—
Dew point11°
Sat, 0722° / 18°0.67Snow
22 °Snow

St. Mary's, Saturday, 7 November

Snow. High 22°, low 18°.

Pressure29.88 inHg
Wind7.2 mph E
Humidity95%
Visibility—
Dew point19°
Sun, 0826° / 10°0.04Light snow
26 °Light snow

St. Mary's, Sunday, 8 November

Light snow. High 26°, low 10°.

Pressure29.91 inHg
Wind13.7 mph W
Humidity80%
Visibility—
Dew point18°
Mon, 0928° / 11°0.01Light snow
28 °Light snow

St. Mary's, Monday, 9 November

Light snow. High 28°, low 11°.

Pressure30.03 inHg
Wind7.2 mph W
Humidity70%
Visibility—
Dew point16°
Tue, 1032° / 12°0Overcast
32 °Overcast

St. Mary's, Tuesday, 10 November

Overcast. High 32°, low 12°.

Pressure29.97 inHg
Wind11.9 mph W
Humidity66%
Visibility—
Dew point18°
Wed, 1127° / 15°0.11Snow
27 °Snow

St. Mary's, Wednesday, 11 November

Snow. High 27°, low 15°.

Pressure29.68 inHg
Wind18.6 mph W
Humidity78%
Visibility—
Dew point19°
Thu, 1231° / 14°0.03Light snow
31 °Light snow

St. Mary's, Thursday, 12 November

Light snow. High 31°, low 14°.

Pressure29.77 inHg
Wind17.2 mph W
Humidity65%
Visibility—
Dew point16°
Fri, 1327° / 8°0.08Light snow
27 °Light snow

St. Mary's, Friday, 13 November

Light snow. High 27°, low 8°.

Pressure29.59 inHg
Wind15 mph W
Humidity67%
Visibility—
Dew point16°
Sat, 1418° / 8°0.03Light snow
18 °Light snow

St. Mary's, Saturday, 14 November

Light snow. High 18°, low 8°.

Pressure30.00 inHg
Wind10 mph W
Humidity57%
Visibility—
Dew point4°

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 St. Mary's, CO 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 St. Mary's, CO 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.