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As of 07:41 MDT

Weather in Alta, MT

28°Current weather

Alta, Tuesday, 13 October, 07:41

Overcast. Feels like 28°. High 49°, low 27°.

Pressure30.21 inHg
Wind2.6 mph SW
Humidity96%
Visibility0.8 mi
Dew point27°
Wed, 1454° / 31°0Partly cloudy
54 °Partly cloudy

Alta, Wednesday, 14 October

Partly cloudy. High 54°, low 31°.

Pressure30.24 inHg
Wind4 mph W
Humidity55%
Visibility6.2 mi
Dew point26°
Thu, 1562° / 32°0Clear
62 °Clear

Alta, Thursday, 15 October

Clear. High 62°, low 32°.

Pressure30.53 inHg
Wind2.1 mph E
Humidity47%
Visibility6.2 mi
Dew point29°
Fri, 1668° / 33°0Clear
68 °Clear

Alta, Friday, 16 October

Clear. High 68°, low 33°.

Pressure30.42 inHg
Wind4.5 mph S
Humidity38%
Visibility6.2 mi
Dew point27°
Sat, 1767° / 39°0Partly cloudy
67 °Partly cloudy

Alta, Saturday, 17 October

Partly cloudy. High 67°, low 39°.

Pressure30.06 inHg
Wind9.4 mph SW
Humidity33%
Visibility—
Dew point31°
Sun, 1866° / 36°0Clear
66 °Clear

Alta, Sunday, 18 October

Clear. High 66°, low 36°.

Pressure29.97 inHg
Wind7.3 mph SW
Humidity38%
Visibility—
Dew point32°
Mon, 1953° / 42°0.1Light rain
53 °Light rain

Alta, Monday, 19 October

Light rain. High 53°, low 42°.

Pressure29.77 inHg
Wind6.5 mph SW
Humidity66%
Visibility—
Dew point37°
Tue, 2043° / 37°0.12Snow
43 °Snow

Alta, Tuesday, 20 October

Snow. High 43°, low 37°.

Pressure29.94 inHg
Wind3.9 mph NW
Humidity81%
Visibility—
Dew point33°
Wed, 2147° / 30°0.02Light rain
47 °Light rain

Alta, Wednesday, 21 October

Light rain. High 47°, low 30°.

Pressure30.06 inHg
Wind5.1 mph NW
Humidity54%
Visibility—
Dew point28°
Thu, 2241° / 28°0.12Snow
41 °Snow

Alta, Thursday, 22 October

Snow. High 41°, low 28°.

Pressure30.03 inHg
Wind7.5 mph W
Humidity81%
Visibility—
Dew point33°
Fri, 2340° / 25°0.11Light snow
40 °Light snow

Alta, Friday, 23 October

Light snow. High 40°, low 25°.

Pressure30.42 inHg
Wind4 mph NW
Humidity73%
Visibility—
Dew point30°
Sat, 2449° / 23°0Overcast
49 °Overcast

Alta, Saturday, 24 October

Overcast. High 49°, low 23°.

Pressure30.47 inHg
Wind4.5 mph SW
Humidity58%
Visibility—
Dew point27°
Sun, 2560° / 28°0Clear
60 °Clear

Alta, Sunday, 25 October

Clear. High 60°, low 28°.

Pressure30.36 inHg
Wind2.6 mph SW
Humidity54%
Visibility—
Dew point33°
Mon, 2658° / 34°0Overcast
58 °Overcast

Alta, Monday, 26 October

Overcast. High 58°, low 34°.

Pressure30.00 inHg
Wind4 mph SW
Humidity60%
Visibility—
Dew point37°
Tue, 2750° / 35°0Overcast
50 °Overcast

Alta, Tuesday, 27 October

Overcast. High 50°, low 35°.

Pressure29.83 inHg
Wind15.3 mph NW
Humidity49%
Visibility—
Dew point30°
Wed, 2850° / 33°0Partly cloudy
50 °Partly cloudy

Alta, Wednesday, 28 October

Partly cloudy. High 50°, low 33°.

Pressure30.12 inHg
Wind4.6 mph W
Humidity49%
Visibility—
Dew point26°

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.