EN
English Español

As of 02:26 MDT

Weather in Sioux Pass, MT

52°Current weather

Sioux Pass, Sunday, 18 October, 02:26

Partly cloudy. Feels like 49°. High 59°, low 37°.

Pressure29.94 inHg
Wind10.6 mph W
Humidity55%
Visibility6.2 mi
Dew point36°
Mon, 1964° / 34°0Clear
64 °Clear

Sioux Pass, Monday, 19 October

Clear. High 64°, low 34°.

Pressure30.12 inHg
Wind15.2 mph SE
Humidity42%
Visibility6.2 mi
Dew point34°
Tue, 2061° / 41°0Partly cloudy
61 °Partly cloudy

Sioux Pass, Tuesday, 20 October

Partly cloudy. High 61°, low 41°.

Pressure30.03 inHg
Wind1.9 mph NE
Humidity63%
Visibility6.2 mi
Dew point45°
Wed, 2160° / 39°0Clear
60 °Clear

Sioux Pass, Wednesday, 21 October

Clear. High 60°, low 39°.

Pressure30.24 inHg
Wind7.8 mph SE
Humidity63%
Visibility6.2 mi
Dew point42°
Thu, 2270° / 50°0Clear
70 °Clear

Sioux Pass, Thursday, 22 October

Clear. High 70°, low 50°.

Pressure29.88 inHg
Wind15.1 mph SE
Humidity65%
Visibility—
Dew point51°
Fri, 2362° / 50°0.21Rain
62 °Rain

Sioux Pass, Friday, 23 October

Rain. High 62°, low 50°.

Pressure29.62 inHg
Wind18.3 mph NW
Humidity73%
Visibility—
Dew point52°
Sat, 2447° / 37°0.17Snow
47 °Snow

Sioux Pass, Saturday, 24 October

Snow. High 47°, low 37°.

Pressure30.39 inHg
Wind22.8 mph NW
Humidity41%
Visibility—
Dew point20°
Sun, 2550° / 33°0Overcast
50 °Overcast

Sioux Pass, Sunday, 25 October

Overcast. High 50°, low 33°.

Pressure30.33 inHg
Wind15 mph SE
Humidity32%
Visibility—
Dew point15°
Mon, 2647° / 38°0Overcast
47 °Overcast

Sioux Pass, Monday, 26 October

Overcast. High 47°, low 38°.

Pressure30.15 inHg
Wind9.6 mph NW
Humidity52%
Visibility—
Dew point27°
Tue, 2758° / 35°0Overcast
58 °Overcast

Sioux Pass, Tuesday, 27 October

Overcast. High 58°, low 35°.

Pressure29.85 inHg
Wind18.1 mph W
Humidity48%
Visibility—
Dew point30°
Wed, 2851° / 36°0Overcast
51 °Overcast

Sioux Pass, Wednesday, 28 October

Overcast. High 51°, low 36°.

Pressure29.85 inHg
Wind16.9 mph W
Humidity57%
Visibility—
Dew point30°
Thu, 2956° / 38°0Overcast
56 °Overcast

Sioux Pass, Thursday, 29 October

Overcast. High 56°, low 38°.

Pressure29.71 inHg
Wind12.7 mph SW
Humidity39%
Visibility—
Dew point25°
Fri, 3055° / 44°0Overcast
55 °Overcast

Sioux Pass, Friday, 30 October

Overcast. High 55°, low 44°.

Pressure29.56 inHg
Wind10.6 mph W
Humidity45%
Visibility—
Dew point31°
Sat, 3152° / 42°0.01Light rain
52 °Light rain

Sioux Pass, Saturday, 31 October

Light rain. High 52°, low 42°.

Pressure29.53 inHg
Wind18.3 mph W
Humidity43%
Visibility—
Dew point25°
Sun, 0159° / 40°0.01Light rain
59 °Light rain

Sioux Pass, Sunday, 1 November

Light rain. High 59°, low 40°.

Pressure29.50 inHg
Wind23.9 mph W
Humidity31%
Visibility—
Dew point24°
Mon, 0253° / 44°0Clear
53 °Clear

Sioux Pass, Monday, 2 November

Clear. High 53°, low 44°.

Pressure29.74 inHg
Wind21.5 mph W
Humidity32%
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.