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As of 02:37 MDT

Weather in Sioux Pass, MT

50°Current weather

Sioux Pass, Thursday, 22 October, 02:37

Clear. Feels like 46°. High 71°, low 43°.

Pressure29.97 inHg
Wind8 mph S
Humidity76%
Visibility6.2 mi
Dew point42°
Fri, 2374° / 40°0.17Heavy rain
74 °Heavy rain

Sioux Pass, Friday, 23 October

Heavy rain. High 74°, low 40°.

Pressure29.59 inHg
Wind11.9 mph SE
Humidity62%
Visibility6.2 mi
Dew point53°
Sat, 2448° / 35°0.06Light rain
48 °Light rain

Sioux Pass, Saturday, 24 October

Light rain. High 48°, low 35°.

Pressure30.36 inHg
Wind14.4 mph W
Humidity59%
Visibility6.2 mi
Dew point25°
Sun, 2549° / 31°0Clear
49 °Clear

Sioux Pass, Sunday, 25 October

Clear. High 49°, low 31°.

Pressure30.50 inHg
Wind11.1 mph E
Humidity54%
Visibility6.2 mi
Dew point24°
Mon, 2643° / 32°0Overcast
43 °Overcast

Sioux Pass, Monday, 26 October

Overcast. High 43°, low 32°.

Pressure30.50 inHg
Wind14.1 mph E
Humidity66%
Visibility—
Dew point30°
Tue, 2740° / 34°0.19Snow
40 °Snow

Sioux Pass, Tuesday, 27 October

Snow. High 40°, low 34°.

Pressure30.18 inHg
Wind12 mph SE
Humidity92%
Visibility—
Dew point34°
Wed, 2846° / 37°0Overcast
46 °Overcast

Sioux Pass, Wednesday, 28 October

Overcast. High 46°, low 37°.

Pressure30.30 inHg
Wind9.9 mph N
Humidity51%
Visibility—
Dew point26°
Thu, 2935° / 33°0.19Snow
35 °Snow

Sioux Pass, Thursday, 29 October

Snow. High 35°, low 33°.

Pressure30.15 inHg
Wind10.1 mph E
Humidity89%
Visibility—
Dew point32°
Fri, 3045° / 35°0Partly cloudy
45 °Partly cloudy

Sioux Pass, Friday, 30 October

Partly cloudy. High 45°, low 35°.

Pressure29.80 inHg
Wind9.6 mph SW
Humidity64%
Visibility—
Dew point29°
Sat, 3151° / 35°0Overcast
51 °Overcast

Sioux Pass, Saturday, 31 October

Overcast. High 51°, low 35°.

Pressure29.77 inHg
Wind18.2 mph W
Humidity56%
Visibility—
Dew point30°
Sun, 0156° / 41°0Clear
56 °Clear

Sioux Pass, Sunday, 1 November

Clear. High 56°, low 41°.

Pressure30.06 inHg
Wind12.5 mph W
Humidity45%
Visibility—
Dew point30°
Mon, 0257° / 40°0Overcast
57 °Overcast

Sioux Pass, Monday, 2 November

Overcast. High 57°, low 40°.

Pressure30.12 inHg
Wind13.6 mph SE
Humidity42%
Visibility—
Dew point29°
Tue, 0360° / 41°0Partly cloudy
60 °Partly cloudy

Sioux Pass, Tuesday, 3 November

Partly cloudy. High 60°, low 41°.

Pressure30.09 inHg
Wind6.4 mph S
Humidity44%
Visibility—
Dew point31°
Wed, 0458° / 45°0Overcast
58 °Overcast

Sioux Pass, Wednesday, 4 November

Overcast. High 58°, low 45°.

Pressure29.97 inHg
Wind11.5 mph S
Humidity53%
Visibility—
Dew point37°
Thu, 0567° / 47°0Overcast
67 °Overcast

Sioux Pass, Thursday, 5 November

Overcast. High 67°, low 47°.

Pressure30.00 inHg
Wind11.3 mph SW
Humidity47%
Visibility—
Dew point38°
Fri, 0667° / 53°0Overcast
67 °Overcast

Sioux Pass, Friday, 6 November

Overcast. High 67°, low 53°.

Pressure29.91 inHg
Wind7.4 mph S
Humidity30%
Visibility—
Dew point30°

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.