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As of 09:09 MDT

Weather in Sioux Pass, MT

52°Current weather

Sioux Pass, Thursday, 22 October, 09:09

Clear. Feels like 50°. High 70°, low 44°.

Pressure29.94 inHg
Wind6.8 mph S
Humidity84%
Visibility6.2 mi
Dew point47°
Fri, 2373° / 41°0.04Light rain
73 °Light rain

Sioux Pass, Friday, 23 October

Light rain. High 73°, low 41°.

Pressure29.56 inHg
Wind12.6 mph SE
Humidity63%
Visibility6.2 mi
Dew point53°
Sat, 2447° / 36°0.06Light rain
47 °Light rain

Sioux Pass, Saturday, 24 October

Light rain. High 47°, low 36°.

Pressure30.36 inHg
Wind15.1 mph W
Humidity60%
Visibility6.2 mi
Dew point25°
Sun, 2547° / 30°0Clear
47 °Clear

Sioux Pass, Sunday, 25 October

Clear. High 47°, low 30°.

Pressure30.50 inHg
Wind10.6 mph E
Humidity57%
Visibility6.2 mi
Dew point23°
Mon, 2644° / 33°0Overcast
44 °Overcast

Sioux Pass, Monday, 26 October

Overcast. High 44°, low 33°.

Pressure30.53 inHg
Wind11.3 mph E
Humidity64%
Visibility—
Dew point30°
Tue, 2741° / 35°0Light rain
41 °Light rain

Sioux Pass, Tuesday, 27 October

Light rain. High 41°, low 35°.

Pressure30.18 inHg
Wind11.4 mph SE
Humidity76%
Visibility—
Dew point31°
Wed, 2840° / 32°0.15Snow
40 °Snow

Sioux Pass, Wednesday, 28 October

Snow. High 40°, low 32°.

Pressure30.21 inHg
Wind20.6 mph NW
Humidity93%
Visibility—
Dew point32°
Thu, 2944° / 27°0Clear
44 °Clear

Sioux Pass, Thursday, 29 October

Clear. High 44°, low 27°.

Pressure30.30 inHg
Wind11.3 mph W
Humidity52%
Visibility—
Dew point22°
Fri, 3053° / 31°0Partly cloudy
53 °Partly cloudy

Sioux Pass, Friday, 30 October

Partly cloudy. High 53°, low 31°.

Pressure29.80 inHg
Wind9.6 mph S
Humidity39%
Visibility—
Dew point21°
Sat, 3153° / 42°0Partly cloudy
53 °Partly cloudy

Sioux Pass, Saturday, 31 October

Partly cloudy. High 53°, low 42°.

Pressure29.68 inHg
Wind16.6 mph W
Humidity42%
Visibility—
Dew point29°
Sun, 0156° / 38°0Clear
56 °Clear

Sioux Pass, Sunday, 1 November

Clear. High 56°, low 38°.

Pressure30.00 inHg
Wind9.1 mph S
Humidity28%
Visibility—
Dew point18°
Mon, 0256° / 42°0Mostly clear
56 °Mostly clear

Sioux Pass, Monday, 2 November

Mostly clear. High 56°, low 42°.

Pressure30.03 inHg
Wind18.9 mph W
Humidity39%
Visibility—
Dew point27°
Tue, 0364° / 40°0Mostly clear
64 °Mostly clear

Sioux Pass, Tuesday, 3 November

Mostly clear. High 64°, low 40°.

Pressure30.09 inHg
Wind15.8 mph S
Humidity29%
Visibility—
Dew point22°
Wed, 0466° / 45°0Clear
66 °Clear

Sioux Pass, Wednesday, 4 November

Clear. High 66°, low 45°.

Pressure29.80 inHg
Wind8.4 mph W
Humidity19%
Visibility—
Dew point17°
Thu, 0568° / 49°0Clear
68 °Clear

Sioux Pass, Thursday, 5 November

Clear. High 68°, low 49°.

Pressure29.80 inHg
Wind11.4 mph W
Humidity24%
Visibility—
Dew point24°
Fri, 0669° / 51°0Overcast
69 °Overcast

Sioux Pass, Friday, 6 November

Overcast. High 69°, low 51°.

Pressure29.80 inHg
Wind9.4 mph SW
Humidity32%
Visibility—
Dew point32°

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.