EN
English Español

As of 13:21 MDT

Weather in Sioux Pass, MT

40°Current weather

Sioux Pass, Thursday, 15 October, 13:21

Overcast. Feels like 30°. High 44°, low 37°.

Pressure30.45 inHg
Wind24.1 mph NW
Humidity77%
Visibility6.2 mi
Dew point34°
Fri, 1656° / 29°0Clear
56 °Clear

Sioux Pass, Friday, 16 October

Clear. High 56°, low 29°.

Pressure30.56 inHg
Wind13.6 mph S
Humidity50%
Visibility6.2 mi
Dew point27°
Sat, 1772° / 44°0Mostly clear
72 °Mostly clear

Sioux Pass, Saturday, 17 October

Mostly clear. High 72°, low 44°.

Pressure29.91 inHg
Wind9 mph SW
Humidity34%
Visibility6.2 mi
Dew point37°
Sun, 1857° / 44°0Overcast
57 °Overcast

Sioux Pass, Sunday, 18 October

Overcast. High 57°, low 44°.

Pressure30.15 inHg
Wind3.6 mph N
Humidity41%
Visibility6.2 mi
Dew point31°
Mon, 1964° / 40°0Mostly clear
64 °Mostly clear

Sioux Pass, Monday, 19 October

Mostly clear. High 64°, low 40°.

Pressure30.03 inHg
Wind11.5 mph SE
Humidity50%
Visibility6.2 mi
Dew point39°
Tue, 2064° / 43°0Overcast
64 °Overcast

Sioux Pass, Tuesday, 20 October

Overcast. High 64°, low 43°.

Pressure30.00 inHg
Wind13.4 mph SE
Humidity64%
Visibility—
Dew point44°
Wed, 2173° / 47°0Partly cloudy
73 °Partly cloudy

Sioux Pass, Wednesday, 21 October

Partly cloudy. High 73°, low 47°.

Pressure29.80 inHg
Wind11 mph SE
Humidity48%
Visibility—
Dew point43°
Thu, 2272° / 55°0Overcast
72 °Overcast

Sioux Pass, Thursday, 22 October

Overcast. High 72°, low 55°.

Pressure29.62 inHg
Wind13.9 mph SW
Humidity31%
Visibility—
Dew point36°
Fri, 2357° / 49°0Overcast
57 °Overcast

Sioux Pass, Friday, 23 October

Overcast. High 57°, low 49°.

Pressure29.88 inHg
Wind16.5 mph NW
Humidity58%
Visibility—
Dew point38°
Sat, 2446° / 38°0.02Light rain
46 °Light rain

Sioux Pass, Saturday, 24 October

Light rain. High 46°, low 38°.

Pressure30.21 inHg
Wind14.6 mph NW
Humidity80%
Visibility—
Dew point35°
Sun, 2538° / 33°0.04Light snow
38 °Light snow

Sioux Pass, Sunday, 25 October

Light snow. High 38°, low 33°.

Pressure30.45 inHg
Wind15.3 mph E
Humidity67%
Visibility—
Dew point27°
Mon, 2639° / 34°0Overcast
39 °Overcast

Sioux Pass, Monday, 26 October

Overcast. High 39°, low 34°.

Pressure30.18 inHg
Wind16.4 mph NE
Humidity87%
Visibility—
Dew point34°
Tue, 2738° / 34°0.36Rain
38 °Rain

Sioux Pass, Tuesday, 27 October

Rain. High 38°, low 34°.

Pressure29.97 inHg
Wind19.8 mph E
Humidity84%
Visibility—
Dew point32°
Wed, 2838° / 34°0.4Snow
38 °Snow

Sioux Pass, Wednesday, 28 October

Snow. High 38°, low 34°.

Pressure29.53 inHg
Wind20.3 mph W
Humidity92%
Visibility—
Dew point35°
Thu, 2938° / 31°0.09Light snow
38 °Light snow

Sioux Pass, Thursday, 29 October

Light snow. High 38°, low 31°.

Pressure29.74 inHg
Wind19.7 mph W
Humidity69%
Visibility—
Dew point27°
Fri, 3036° / 29°0Overcast
36 °Overcast

Sioux Pass, Friday, 30 October

Overcast. High 36°, low 29°.

Pressure30.06 inHg
Wind19.3 mph NW
Humidity66%
Visibility—
Dew point25°

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.