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As of 23:44 MDT

Weather in Alta, MT

31°Current weather

Alta, Sunday, 11 October, 23:44

Light snow. Feels like 28°. High 37°, low 31°.

Pressure29.97 inHg
Wind3.3 mph NE
Humidity96%
Visibility3.6 mi
Dew point30°
Mon, 1241° / 30°0.04Snow
41 °Snow

Alta, Monday, 12 October

Snow. High 41°, low 30°.

Pressure30.03 inHg
Wind2.1 mph N
Humidity93%
Visibility6.2 mi
Dew point27°
Tue, 1349° / 26°0Clear
49 °Clear

Alta, Tuesday, 13 October

Clear. High 49°, low 26°.

Pressure30.15 inHg
Wind1.3 mph NW
Humidity75%
Visibility6.2 mi
Dew point28°
Wed, 1453° / 27°0Mostly clear
53 °Mostly clear

Alta, Wednesday, 14 October

Mostly clear. High 53°, low 27°.

Pressure30.18 inHg
Wind2.3 mph W
Humidity55%
Visibility6.2 mi
Dew point25°
Thu, 1560° / 29°0Clear
60 °Clear

Alta, Thursday, 15 October

Clear. High 60°, low 29°.

Pressure30.50 inHg
Wind1.2 mph E
Humidity49%
Visibility6.2 mi
Dew point29°
Fri, 1666° / 32°0Clear
66 °Clear

Alta, Friday, 16 October

Clear. High 66°, low 32°.

Pressure30.36 inHg
Wind4.9 mph S
Humidity40%
Visibility—
Dew point31°
Sat, 1769° / 36°0Overcast
69 °Overcast

Alta, Saturday, 17 October

Overcast. High 69°, low 36°.

Pressure30.03 inHg
Wind8.7 mph SW
Humidity38%
Visibility—
Dew point31°
Sun, 1865° / 43°0Partly cloudy
65 °Partly cloudy

Alta, Sunday, 18 October

Partly cloudy. High 65°, low 43°.

Pressure29.97 inHg
Wind8.2 mph SW
Humidity39%
Visibility—
Dew point32°
Mon, 1959° / 41°0Overcast
59 °Overcast

Alta, Monday, 19 October

Overcast. High 59°, low 41°.

Pressure29.77 inHg
Wind7.3 mph W
Humidity35%
Visibility—
Dew point29°
Tue, 2040° / 31°0.26Snow
40 °Snow

Alta, Tuesday, 20 October

Snow. High 40°, low 31°.

Pressure29.91 inHg
Wind6.5 mph NW
Humidity87%
Visibility—
Dew point35°
Wed, 2143° / 29°0.01Light snow
43 °Light snow

Alta, Wednesday, 21 October

Light snow. High 43°, low 29°.

Pressure30.24 inHg
Wind7.4 mph W
Humidity67%
Visibility—
Dew point27°
Thu, 2255° / 34°0Overcast
55 °Overcast

Alta, Thursday, 22 October

Overcast. High 55°, low 34°.

Pressure30.27 inHg
Wind4.9 mph S
Humidity49%
Visibility—
Dew point30°
Fri, 2360° / 33°0Partly cloudy
60 °Partly cloudy

Alta, Friday, 23 October

Partly cloudy. High 60°, low 33°.

Pressure29.91 inHg
Wind5 mph S
Humidity44%
Visibility—
Dew point29°
Sat, 2443° / 30°0.08Snow
43 °Snow

Alta, Saturday, 24 October

Snow. High 43°, low 30°.

Pressure29.85 inHg
Wind8.7 mph NW
Humidity98%
Visibility—
Dew point39°
Sun, 2553° / 28°0Partly cloudy
53 °Partly cloudy

Alta, Sunday, 25 October

Partly cloudy. High 53°, low 28°.

Pressure30.00 inHg
Wind3.4 mph S
Humidity39%
Visibility—
Dew point21°
Mon, 2658° / 33°0Mostly clear
58 °Mostly clear

Alta, Monday, 26 October

Mostly clear. High 58°, low 33°.

Pressure30.09 inHg
Wind1.9 mph W
Humidity33%
Visibility—
Dew point22°

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 Alta, 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 Alta, 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.