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As of 04:05 MDT

Weather in Sioux Pass, MT

25°Current weather

Sioux Pass, Friday, 16 October, 04:05

Clear. Feels like 25°. High 57°, low 25°.

Pressure30.77 inHg
Wind2.6 mph SW
Humidity90%
Visibility6.2 mi
Dew point23°
Sat, 1773° / 45°0Mostly clear
73 °Mostly clear

Sioux Pass, Saturday, 17 October

Mostly clear. High 73°, low 45°.

Pressure29.91 inHg
Wind10 mph SW
Humidity34%
Visibility6.2 mi
Dew point36°
Sun, 1858° / 44°0Overcast
58 °Overcast

Sioux Pass, Sunday, 18 October

Overcast. High 58°, low 44°.

Pressure30.18 inHg
Wind3.8 mph N
Humidity40%
Visibility6.2 mi
Dew point29°
Mon, 1963° / 40°0Mostly clear
63 °Mostly clear

Sioux Pass, Monday, 19 October

Mostly clear. High 63°, low 40°.

Pressure30.09 inHg
Wind13 mph SE
Humidity47%
Visibility6.2 mi
Dew point37°
Tue, 2067° / 44°0Clear
67 °Clear

Sioux Pass, Tuesday, 20 October

Clear. High 67°, low 44°.

Pressure29.85 inHg
Wind13.8 mph SE
Humidity64%
Visibility—
Dew point45°
Wed, 2157° / 44°0Clear
57 °Clear

Sioux Pass, Wednesday, 21 October

Clear. High 57°, low 44°.

Pressure30.21 inHg
Wind10 mph NW
Humidity65%
Visibility—
Dew point40°
Thu, 2273° / 46°0Clear
73 °Clear

Sioux Pass, Thursday, 22 October

Clear. High 73°, low 46°.

Pressure29.85 inHg
Wind15.4 mph SW
Humidity31%
Visibility—
Dew point32°
Fri, 2360° / 50°0Overcast
60 °Overcast

Sioux Pass, Friday, 23 October

Overcast. High 60°, low 50°.

Pressure29.65 inHg
Wind23.5 mph N
Humidity41%
Visibility—
Dew point35°
Sat, 2445° / 35°0.75Snow
45 °Snow

Sioux Pass, Saturday, 24 October

Snow. High 45°, low 35°.

Pressure30.12 inHg
Wind21.2 mph N
Humidity64%
Visibility—
Dew point28°
Sun, 2546° / 34°0Overcast
46 °Overcast

Sioux Pass, Sunday, 25 October

Overcast. High 46°, low 34°.

Pressure30.39 inHg
Wind7.9 mph SE
Humidity40%
Visibility—
Dew point20°
Mon, 2649° / 33°0Overcast
49 °Overcast

Sioux Pass, Monday, 26 October

Overcast. High 49°, low 33°.

Pressure29.94 inHg
Wind16.5 mph S
Humidity51%
Visibility—
Dew point26°
Tue, 2746° / 36°0Mostly clear
46 °Mostly clear

Sioux Pass, Tuesday, 27 October

Mostly clear. High 46°, low 36°.

Pressure29.83 inHg
Wind16.5 mph NW
Humidity56%
Visibility—
Dew point27°
Wed, 2842° / 32°0.01Light rain
42 °Light rain

Sioux Pass, Wednesday, 28 October

Light rain. High 42°, low 32°.

Pressure29.83 inHg
Wind10 mph E
Humidity60%
Visibility—
Dew point27°
Thu, 2938° / 34°0.01Snow
38 °Snow

Sioux Pass, Thursday, 29 October

Snow. High 38°, low 34°.

Pressure30.00 inHg
Wind7.6 mph NE
Humidity74%
Visibility—
Dew point28°
Fri, 3047° / 31°0Mostly clear
47 °Mostly clear

Sioux Pass, Friday, 30 October

Mostly clear. High 47°, low 31°.

Pressure29.83 inHg
Wind8 mph W
Humidity64%
Visibility—
Dew point30°
Sat, 3158° / 44°0Overcast
58 °Overcast

Sioux Pass, Saturday, 31 October

Overcast. High 58°, low 44°.

Pressure29.59 inHg
Wind18.4 mph W
Humidity46%
Visibility—
Dew point31°

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.