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As of 08:51 MDT

Weather in Sioux Pass, MT

31°Current weather

Sioux Pass, Sunday, 25 October, 08:51

Clear. Feels like 25°. High 46°, low 28°.

Pressure30.59 inHg
Wind5.4 mph NE
Humidity78%
Visibility6.2 mi
Dew point25°
Mon, 2643° / 28°0Overcast
43 °Overcast

Sioux Pass, Monday, 26 October

Overcast. High 43°, low 28°.

Pressure30.45 inHg
Wind13.1 mph SE
Humidity64%
Visibility6.2 mi
Dew point27°
Tue, 2738° / 33°0.09Light rain
38 °Light rain

Sioux Pass, Tuesday, 27 October

Light rain. High 38°, low 33°.

Pressure29.91 inHg
Wind13.6 mph SE
Humidity81%
Visibility6.2 mi
Dew point33°
Wed, 2852° / 33°0Clear
52 °Clear

Sioux Pass, Wednesday, 28 October

Clear. High 52°, low 33°.

Pressure29.94 inHg
Wind15.3 mph W
Humidity52%
Visibility6.2 mi
Dew point33°
Thu, 2948° / 34°0Clear
48 °Clear

Sioux Pass, Thursday, 29 October

Clear. High 48°, low 34°.

Pressure30.15 inHg
Wind9.3 mph N
Humidity57%
Visibility—
Dew point31°
Fri, 3044° / 27°0Partly cloudy
44 °Partly cloudy

Sioux Pass, Friday, 30 October

Partly cloudy. High 44°, low 27°.

Pressure30.33 inHg
Wind10.7 mph E
Humidity72%
Visibility—
Dew point28°
Sat, 3156° / 40°0Overcast
56 °Overcast

Sioux Pass, Saturday, 31 October

Overcast. High 56°, low 40°.

Pressure29.97 inHg
Wind8.4 mph E
Humidity64%
Visibility—
Dew point38°
Sun, 0163° / 44°0Overcast
63 °Overcast

Sioux Pass, Sunday, 1 November

Overcast. High 63°, low 44°.

Pressure29.88 inHg
Wind10.8 mph S
Humidity56%
Visibility—
Dew point40°
Mon, 0258° / 41°0.29Light rain
58 °Light rain

Sioux Pass, Monday, 2 November

Light rain. High 58°, low 41°.

Pressure29.38 inHg
Wind24.2 mph NW
Humidity96%
Visibility—
Dew point51°
Tue, 0344° / 35°0Partly cloudy
44 °Partly cloudy

Sioux Pass, Tuesday, 3 November

Partly cloudy. High 44°, low 35°.

Pressure30.00 inHg
Wind25.5 mph W
Humidity65%
Visibility—
Dew point31°
Wed, 0450° / 32°0Partly cloudy
50 °Partly cloudy

Sioux Pass, Wednesday, 4 November

Partly cloudy. High 50°, low 32°.

Pressure30.00 inHg
Wind7.6 mph W
Humidity52%
Visibility—
Dew point27°
Thu, 0557° / 41°0Mostly clear
57 °Mostly clear

Sioux Pass, Thursday, 5 November

Mostly clear. High 57°, low 41°.

Pressure29.83 inHg
Wind7.8 mph W
Humidity36%
Visibility—
Dew point26°
Fri, 0649° / 40°0Overcast
49 °Overcast

Sioux Pass, Friday, 6 November

Overcast. High 49°, low 40°.

Pressure29.53 inHg
Wind17.9 mph E
Humidity51%
Visibility—
Dew point29°
Sat, 0751° / 41°0.12Light rain
51 °Light rain

Sioux Pass, Saturday, 7 November

Light rain. High 51°, low 41°.

Pressure29.50 inHg
Wind11.1 mph NW
Humidity73%
Visibility—
Dew point39°
Sun, 0847° / 36°0Clear
47 °Clear

Sioux Pass, Sunday, 8 November

Clear. High 47°, low 36°.

Pressure29.97 inHg
Wind13.6 mph NW
Humidity56%
Visibility—
Dew point27°
Mon, 0962° / 39°0Partly cloudy
62 °Partly cloudy

Sioux Pass, Monday, 9 November

Partly cloudy. High 62°, low 39°.

Pressure29.94 inHg
Wind9.5 mph W
Humidity48%
Visibility—
Dew point35°

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.