As of 11:57 MDT

Weather in Sioux Pass, MT

57°

Sioux Pass, Wednesday, 21 October, 11:57

Mostly clear. Feels like 55°. High 62°, low 31°.

Pressure30.21 inHg

Wind9.5 mph SE

Humidity58%

Visibility6.2 mi

Dew point42°

See detailed hourly forecast

Thu, 2270° / 39°

70 °

Sioux Pass, Thursday, 22 October

Clear. High 70°, low 39°.

Pressure29.91 inHg

Wind1.6 mph S

Humidity56%

Visibility6.2 mi

Dew point48°

Fri, 2373° / 43°

73 °

Sioux Pass, Friday, 23 October

Mostly clear. High 73°, low 43°.

Pressure29.62 inHg

Wind11.9 mph SE

Humidity69%

Visibility6.2 mi

Dew point53°

Sat, 2448° / 36°

48 °

Sioux Pass, Saturday, 24 October

Light rain. High 48°, low 36°.

Pressure30.39 inHg

Wind14.4 mph NW

Humidity62%

Visibility6.2 mi

Dew point27°

Sun, 2546° / 29°

46 °

Sioux Pass, Sunday, 25 October

Partly cloudy. High 46°, low 29°.

Pressure30.47 inHg

Wind9.7 mph E

Humidity63%

Visibility—

Dew point29°

Mon, 2642° / 30°

42 °

Sioux Pass, Monday, 26 October

Overcast. High 42°, low 30°.

Pressure30.56 inHg

Wind4.8 mph SE

Humidity74%

Visibility—

Dew point30°

Tue, 2756° / 36°

56 °

Sioux Pass, Tuesday, 27 October

Overcast. High 56°, low 36°.

Pressure29.97 inHg

Wind12 mph N

Humidity57%

Visibility—

Dew point34°

Wed, 2847° / 35°

47 °

Sioux Pass, Wednesday, 28 October

Mostly clear. High 47°, low 35°.

Pressure30.24 inHg

Wind14.7 mph N

Humidity36%

Visibility—

Dew point16°

Thu, 2954° / 37°

54 °

Sioux Pass, Thursday, 29 October

Clear. High 54°, low 37°.

Pressure30.15 inHg

Wind9.4 mph SW

Humidity47%

Visibility—

Dew point28°

Fri, 3058° / 39°

58 °

Sioux Pass, Friday, 30 October

Clear. High 58°, low 39°.

Pressure29.65 inHg

Wind14.5 mph S

Humidity40%

Visibility—

Dew point28°

Sat, 3148° / 40°

48 °

Sioux Pass, Saturday, 31 October

Overcast. High 48°, low 40°.

Pressure29.47 inHg

Wind15.7 mph NW

Humidity43%

Visibility—

Dew point26°

Sun, 0150° / 32°

50 °

Sioux Pass, Sunday, 1 November

Clear. High 50°, low 32°.

Pressure30.09 inHg

Wind11.4 mph NW

Humidity44%

Visibility—

Dew point23°

Mon, 0257° / 39°

57 °

Sioux Pass, Monday, 2 November

Overcast. High 57°, low 39°.

Pressure30.03 inHg

Wind13.8 mph W

Humidity30%

Visibility—

Dew point21°

Tue, 0357° / 37°

57 °

Sioux Pass, Tuesday, 3 November

Clear. High 57°, low 37°.

Pressure30.15 inHg

Wind12.6 mph S

Humidity35%

Visibility—

Dew point23°

Wed, 0456° / 38°

56 °

Sioux Pass, Wednesday, 4 November

Overcast. High 56°, low 38°.

Pressure29.88 inHg

Wind13.6 mph S

Humidity34%

Visibility—

Dew point21°

Thu, 0554° / 37°

54 °

Sioux Pass, Thursday, 5 November

Partly cloudy. High 54°, low 37°.

Pressure29.53 inHg

Wind16 mph W

Humidity33%

Visibility—

Dew point20°

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.