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As of 08:40 MDT

Weather in Bison, MT

43°Current weather

Bison, Friday, 9 October, 08:40

Overcast. Feels like 35°. High 62°, low 36°.

Pressure29.56 inHg
Wind15.5 mph SW
Humidity57%
Visibility6.2 mi
Dew point29°
Sat, 1040° / 23°0.07Light snow
40 °Light snow

Bison, Saturday, 10 October

Light snow. High 40°, low 23°.

Pressure29.88 inHg
Wind8.5 mph NE
Humidity92%
Visibility6.2 mi
Dew point25°
Sun, 1124° / 22°0.78Snow
24 °Snow

Bison, Sunday, 11 October

Snow. High 24°, low 22°.

Pressure30.24 inHg
Wind12.8 mph NE
Humidity99%
Visibility1.1 mi
Dew point21°
Mon, 1235° / 21°0.11Light snow
35 °Light snow

Bison, Monday, 12 October

Light snow. High 35°, low 21°.

Pressure30.18 inHg
Wind2.4 mph S
Humidity93%
Visibility6.2 mi
Dew point22°
Tue, 1342° / 23°0Clear
42 °Clear

Bison, Tuesday, 13 October

Clear. High 42°, low 23°.

Pressure30.09 inHg
Wind7.4 mph W
Humidity77%
Visibility—
Dew point28°
Wed, 1441° / 27°0Partly cloudy
41 °Partly cloudy

Bison, Wednesday, 14 October

Partly cloudy. High 41°, low 27°.

Pressure30.06 inHg
Wind13.8 mph W
Humidity74%
Visibility—
Dew point29°
Thu, 1535° / 28°0.07Light snow
35 °Light snow

Bison, Thursday, 15 October

Light snow. High 35°, low 28°.

Pressure30.45 inHg
Wind6.1 mph NE
Humidity90%
Visibility—
Dew point32°
Fri, 1646° / 21°0Partly cloudy
46 °Partly cloudy

Bison, Friday, 16 October

Partly cloudy. High 46°, low 21°.

Pressure30.45 inHg
Wind10.3 mph SW
Humidity50%
Visibility—
Dew point22°
Sat, 1753° / 30°0Overcast
53 °Overcast

Bison, Saturday, 17 October

Overcast. High 53°, low 30°.

Pressure30.12 inHg
Wind13.5 mph SW
Humidity52%
Visibility—
Dew point30°
Sun, 1857° / 36°0Overcast
57 °Overcast

Bison, Sunday, 18 October

Overcast. High 57°, low 36°.

Pressure29.94 inHg
Wind9.3 mph W
Humidity52%
Visibility—
Dew point33°
Mon, 1952° / 38°0Partly cloudy
52 °Partly cloudy

Bison, Monday, 19 October

Partly cloudy. High 52°, low 38°.

Pressure29.77 inHg
Wind12 mph W
Humidity35%
Visibility—
Dew point24°
Tue, 2046° / 33°0Partly cloudy
46 °Partly cloudy

Bison, Tuesday, 20 October

Partly cloudy. High 46°, low 33°.

Pressure30.12 inHg
Wind11.3 mph W
Humidity64%
Visibility—
Dew point31°
Wed, 2146° / 31°0.02Light rain
46 °Light rain

Bison, Wednesday, 21 October

Light rain. High 46°, low 31°.

Pressure29.94 inHg
Wind19.8 mph W
Humidity57%
Visibility—
Dew point29°
Thu, 2247° / 30°0Light snow
47 °Light snow

Bison, Thursday, 22 October

Light snow. High 47°, low 30°.

Pressure30.42 inHg
Wind4.4 mph NE
Humidity47%
Visibility—
Dew point22°
Fri, 2356° / 33°0Partly cloudy
56 °Partly cloudy

Bison, Friday, 23 October

Partly cloudy. High 56°, low 33°.

Pressure30.03 inHg
Wind12.2 mph SW
Humidity34%
Visibility—
Dew point21°
Sat, 2461° / 37°0Clear
61 °Clear

Bison, Saturday, 24 October

Clear. High 61°, low 37°.

Pressure29.94 inHg
Wind11.2 mph SW
Humidity28%
Visibility—
Dew point21°

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.