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As of 20:03 MDT

Weather in Sioux Pass, MT

54°Current weather

Sioux Pass, Friday, 23 October, 20:03

Clear. Feels like 52°. High 73°, low 48°.

Pressure29.65 inHg
Wind21.8 mph W
Humidity67%
Visibility6.2 mi
Dew point42°
Sat, 2456° / 32°0Clear
56 °Clear

Sioux Pass, Saturday, 24 October

Clear. High 56°, low 32°.

Pressure30.36 inHg
Wind17.6 mph W
Humidity57%
Visibility6.2 mi
Dew point23°
Sun, 2547° / 29°0Clear
47 °Clear

Sioux Pass, Sunday, 25 October

Clear. High 47°, low 29°.

Pressure30.53 inHg
Wind9 mph E
Humidity57%
Visibility6.2 mi
Dew point22°
Mon, 2644° / 29°0Overcast
44 °Overcast

Sioux Pass, Monday, 26 October

Overcast. High 44°, low 29°.

Pressure30.47 inHg
Wind11.5 mph E
Humidity71%
Visibility6.2 mi
Dew point28°
Tue, 2737° / 32°0.04Snow
37 °Snow

Sioux Pass, Tuesday, 27 October

Snow. High 37°, low 32°.

Pressure30.06 inHg
Wind6.2 mph E
Humidity81%
Visibility6.2 mi
Dew point31°
Wed, 2854° / 33°0Partly cloudy
54 °Partly cloudy

Sioux Pass, Wednesday, 28 October

Partly cloudy. High 54°, low 33°.

Pressure29.94 inHg
Wind10.2 mph W
Humidity49%
Visibility—
Dew point30°
Thu, 2950° / 33°0Overcast
50 °Overcast

Sioux Pass, Thursday, 29 October

Overcast. High 50°, low 33°.

Pressure30.06 inHg
Wind10.7 mph E
Humidity63%
Visibility—
Dew point33°
Fri, 3056° / 41°0Overcast
56 °Overcast

Sioux Pass, Friday, 30 October

Overcast. High 56°, low 41°.

Pressure29.91 inHg
Wind11.5 mph SE
Humidity67%
Visibility—
Dew point41°
Sat, 3152° / 41°0Overcast
52 °Overcast

Sioux Pass, Saturday, 31 October

Overcast. High 52°, low 41°.

Pressure29.88 inHg
Wind20.1 mph W
Humidity25%
Visibility—
Dew point16°
Sun, 0153° / 37°0Overcast
53 °Overcast

Sioux Pass, Sunday, 1 November

Overcast. High 53°, low 37°.

Pressure30.15 inHg
Wind20.7 mph NW
Humidity31%
Visibility—
Dew point18°
Mon, 0252° / 39°0Overcast
52 °Overcast

Sioux Pass, Monday, 2 November

Overcast. High 52°, low 39°.

Pressure30.27 inHg
Wind13.9 mph NW
Humidity34%
Visibility—
Dew point21°
Tue, 0355° / 41°0Overcast
55 °Overcast

Sioux Pass, Tuesday, 3 November

Overcast. High 55°, low 41°.

Pressure29.94 inHg
Wind7.8 mph W
Humidity30%
Visibility—
Dew point19°
Wed, 0460° / 39°0Overcast
60 °Overcast

Sioux Pass, Wednesday, 4 November

Overcast. High 60°, low 39°.

Pressure29.83 inHg
Wind5.7 mph SW
Humidity26%
Visibility—
Dew point18°
Thu, 0566° / 48°0Mostly clear
66 °Mostly clear

Sioux Pass, Thursday, 5 November

Mostly clear. High 66°, low 48°.

Pressure29.71 inHg
Wind18.3 mph W
Humidity22%
Visibility—
Dew point23°
Fri, 0664° / 54°0Overcast
64 °Overcast

Sioux Pass, Friday, 6 November

Overcast. High 64°, low 54°.

Pressure30.03 inHg
Wind22.6 mph W
Humidity44%
Visibility—
Dew point39°
Sat, 0772° / 52°0Overcast
72 °Overcast

Sioux Pass, Saturday, 7 November

Overcast. High 72°, low 52°.

Pressure30.09 inHg
Wind11.6 mph W
Humidity38%
Visibility—
Dew point39°

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.