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As of 05:43 MDT

Weather in Bison, MT

34°Current weather

Bison, Saturday, 10 October, 05:43

Overcast. Feels like 34°. High 44°, low 23°.

Pressure29.65 inHg
Wind0.3 mph N
Humidity86%
Visibility6.2 mi
Dew point30°
Sun, 1130° / 20°0.74Snow
30 °Snow

Bison, Sunday, 11 October

Snow. High 30°, low 20°.

Pressure30.21 inHg
Wind13.2 mph NE
Humidity99%
Visibility1.2 mi
Dew point22°
Mon, 1238° / 22°0.13Snow
38 °Snow

Bison, Monday, 12 October

Snow. High 38°, low 22°.

Pressure30.12 inHg
Wind3.3 mph S
Humidity92%
Visibility6.2 mi
Dew point22°
Tue, 1344° / 21°0Clear
44 °Clear

Bison, Tuesday, 13 October

Clear. High 44°, low 21°.

Pressure30.09 inHg
Wind4.7 mph SW
Humidity74%
Visibility6.0 mi
Dew point27°
Wed, 1446° / 28°0Clear
46 °Clear

Bison, Wednesday, 14 October

Clear. High 46°, low 28°.

Pressure30.09 inHg
Wind7.3 mph W
Humidity56%
Visibility—
Dew point28°
Thu, 1551° / 32°0.2Rain
51 °Rain

Bison, Thursday, 15 October

Rain. High 51°, low 32°.

Pressure30.30 inHg
Wind6.8 mph W
Humidity50%
Visibility—
Dew point29°
Fri, 1639° / 14°0Clear
39 °Clear

Bison, Friday, 16 October

Clear. High 39°, low 14°.

Pressure30.71 inHg
Wind6.9 mph SW
Humidity62%
Visibility—
Dew point19°
Sat, 1750° / 24°0Mostly clear
50 °Mostly clear

Bison, Saturday, 17 October

Mostly clear. High 50°, low 24°.

Pressure30.18 inHg
Wind11.6 mph SW
Humidity57%
Visibility—
Dew point27°
Sun, 1853° / 30°0Partly cloudy
53 °Partly cloudy

Bison, Sunday, 18 October

Partly cloudy. High 53°, low 30°.

Pressure29.83 inHg
Wind14.7 mph W
Humidity43%
Visibility—
Dew point27°
Mon, 1951° / 32°0Overcast
51 °Overcast

Bison, Monday, 19 October

Overcast. High 51°, low 32°.

Pressure29.94 inHg
Wind10.3 mph W
Humidity57%
Visibility—
Dew point31°
Tue, 2050° / 33°0Clear
50 °Clear

Bison, Tuesday, 20 October

Clear. High 50°, low 33°.

Pressure29.71 inHg
Wind16.7 mph SW
Humidity49%
Visibility—
Dew point28°
Wed, 2138° / 34°0.18Light rain
38 °Light rain

Bison, Wednesday, 21 October

Light rain. High 38°, low 34°.

Pressure29.88 inHg
Wind12.1 mph SW
Humidity90%
Visibility—
Dew point35°
Thu, 2238° / 32°0.09Snow
38 °Snow

Bison, Thursday, 22 October

Snow. High 38°, low 32°.

Pressure29.85 inHg
Wind17.4 mph SW
Humidity86%
Visibility—
Dew point33°
Fri, 2338° / 32°0.93Snow
38 °Snow

Bison, Friday, 23 October

Snow. High 38°, low 32°.

Pressure29.77 inHg
Wind19.1 mph SW
Humidity93%
Visibility—
Dew point35°
Sat, 2436° / 29°0.08Snow
36 °Snow

Bison, Saturday, 24 October

Snow. High 36°, low 29°.

Pressure30.06 inHg
Wind13.3 mph SW
Humidity86%
Visibility—
Dew point31°
Sun, 2535° / 29°1.1Snow
35 °Snow

Bison, Sunday, 25 October

Snow. High 35°, low 29°.

Pressure29.41 inHg
Wind22.5 mph SW
Humidity92%
Visibility—
Dew point29°

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 Bison, 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 Bison, 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.