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As of 04:35 MDT

Weather in Sioux Pass, MT

34°Current weather

Sioux Pass, Wednesday, 28 October, 04:35

Clear. Feels like 25°. High 48°, low 34°.

Pressure29.83 inHg
Wind10.7 mph W
Humidity84%
Visibility6.2 mi
Dew point30°
Thu, 2947° / 30°0Overcast
47 °Overcast

Sioux Pass, Thursday, 29 October

Overcast. High 47°, low 30°.

Pressure30.21 inHg
Wind9 mph E
Humidity64%
Visibility6.2 mi
Dew point32°
Fri, 3047° / 31°0.01Light rain
47 °Light rain

Sioux Pass, Friday, 30 October

Light rain. High 47°, low 31°.

Pressure30.27 inHg
Wind11.3 mph E
Humidity71%
Visibility6.2 mi
Dew point33°
Sat, 3154° / 42°0Overcast
54 °Overcast

Sioux Pass, Saturday, 31 October

Overcast. High 54°, low 42°.

Pressure30.03 inHg
Wind7.2 mph SE
Humidity84%
Visibility6.2 mi
Dew point48°
Sun, 0157° / 48°0.06Light rain
57 °Light rain

Sioux Pass, Sunday, 1 November

Light rain. High 57°, low 48°.

Pressure29.85 inHg
Wind11.7 mph E
Humidity96%
Visibility—
Dew point49°
Mon, 0250° / 42°0.14Light rain
50 °Light rain

Sioux Pass, Monday, 2 November

Light rain. High 50°, low 42°.

Pressure30.06 inHg
Wind21.5 mph NW
Humidity66%
Visibility—
Dew point36°
Tue, 0352° / 43°0Overcast
52 °Overcast

Sioux Pass, Tuesday, 3 November

Overcast. High 52°, low 43°.

Pressure30.21 inHg
Wind8.4 mph NW
Humidity79%
Visibility—
Dew point40°
Wed, 0451° / 39°0Clear
51 °Clear

Sioux Pass, Wednesday, 4 November

Clear. High 51°, low 39°.

Pressure30.21 inHg
Wind6.8 mph NW
Humidity71%
Visibility—
Dew point37°
Thu, 0553° / 37°0Clear
53 °Clear

Sioux Pass, Thursday, 5 November

Clear. High 53°, low 37°.

Pressure30.18 inHg
Wind12.3 mph SE
Humidity52%
Visibility—
Dew point30°
Fri, 0657° / 37°0Clear
57 °Clear

Sioux Pass, Friday, 6 November

Clear. High 57°, low 37°.

Pressure29.97 inHg
Wind14 mph S
Humidity54%
Visibility—
Dew point32°
Sat, 0760° / 42°0Clear
60 °Clear

Sioux Pass, Saturday, 7 November

Clear. High 60°, low 42°.

Pressure29.80 inHg
Wind4.7 mph S
Humidity37%
Visibility—
Dew point28°
Sun, 0857° / 44°0Overcast
57 °Overcast

Sioux Pass, Sunday, 8 November

Overcast. High 57°, low 44°.

Pressure29.85 inHg
Wind11.8 mph W
Humidity41%
Visibility—
Dew point30°
Mon, 0960° / 48°0Overcast
60 °Overcast

Sioux Pass, Monday, 9 November

Overcast. High 60°, low 48°.

Pressure29.65 inHg
Wind20 mph W
Humidity44%
Visibility—
Dew point37°
Tue, 1048° / 36°0Clear
48 °Clear

Sioux Pass, Tuesday, 10 November

Clear. High 48°, low 36°.

Pressure29.85 inHg
Wind24.7 mph NW
Humidity45%
Visibility—
Dew point27°
Wed, 1148° / 32°0.14Light rain
48 °Light rain

Sioux Pass, Wednesday, 11 November

Light rain. High 48°, low 32°.

Pressure29.65 inHg
Wind17.8 mph NW
Humidity88%
Visibility—
Dew point34°
Thu, 1235° / 31°0.02Light snow
35 °Light snow

Sioux Pass, Thursday, 12 November

Light snow. High 35°, low 31°.

Pressure29.88 inHg
Wind15.5 mph NW
Humidity65%
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 Sioux Pass, 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 Sioux Pass, 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.