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As of 20:06 MDT

Weather in Bison, MT

53°Current weather

Bison, Friday, 9 October, 20:06

Overcast. Feels like 50°. High 65°, low 40°.

Pressure29.53 inHg
Wind18.1 mph SW
Humidity48%
Visibility6.2 mi
Dew point34°
Sat, 1041° / 23°0.17Snow
41 °Snow

Bison, Saturday, 10 October

Snow. High 41°, low 23°.

Pressure29.88 inHg
Wind8.6 mph NE
Humidity93%
Visibility6.2 mi
Dew point27°
Sun, 1128° / 18°0.78Snow
28 °Snow

Bison, Sunday, 11 October

Snow. High 28°, low 18°.

Pressure30.21 inHg
Wind13.5 mph NE
Humidity98%
Visibility1.4 mi
Dew point22°
Mon, 1236° / 21°0.16Snow
36 °Snow

Bison, Monday, 12 October

Snow. High 36°, low 21°.

Pressure30.15 inHg
Wind2.8 mph S
Humidity93%
Visibility6.2 mi
Dew point21°
Tue, 1343° / 21°0Clear
43 °Clear

Bison, Tuesday, 13 October

Clear. High 43°, low 21°.

Pressure30.12 inHg
Wind5.1 mph SW
Humidity77%
Visibility6.2 mi
Dew point27°
Wed, 1446° / 30°0Clear
46 °Clear

Bison, Wednesday, 14 October

Clear. High 46°, low 30°.

Pressure30.12 inHg
Wind8.7 mph SW
Humidity60%
Visibility—
Dew point29°
Thu, 1545° / 30°0.02Light snow
45 °Light snow

Bison, Thursday, 15 October

Light snow. High 45°, low 30°.

Pressure30.36 inHg
Wind7.8 mph W
Humidity58%
Visibility—
Dew point29°
Fri, 1646° / 26°0Light snow
46 °Light snow

Bison, Friday, 16 October

Light snow. High 46°, low 26°.

Pressure30.56 inHg
Wind7.9 mph SW
Humidity60%
Visibility—
Dew point25°
Sat, 1752° / 30°0Overcast
52 °Overcast

Bison, Saturday, 17 October

Overcast. High 52°, low 30°.

Pressure29.94 inHg
Wind11.3 mph SW
Humidity45%
Visibility—
Dew point28°
Sun, 1851° / 32°0Overcast
51 °Overcast

Bison, Sunday, 18 October

Overcast. High 51°, low 32°.

Pressure29.94 inHg
Wind9.3 mph SW
Humidity52%
Visibility—
Dew point29°
Mon, 1938° / 34°0.04Light rain
38 °Light rain

Bison, Monday, 19 October

Light rain. High 38°, low 34°.

Pressure29.88 inHg
Wind10.2 mph SW
Humidity94%
Visibility—
Dew point36°
Tue, 2036° / 31°0.11Snow
36 °Snow

Bison, Tuesday, 20 October

Snow. High 36°, low 31°.

Pressure29.77 inHg
Wind9.7 mph SW
Humidity92%
Visibility—
Dew point33°
Wed, 2139° / 30°0.03Snow
39 °Snow

Bison, Wednesday, 21 October

Snow. High 39°, low 30°.

Pressure30.06 inHg
Wind15.7 mph SW
Humidity75%
Visibility—
Dew point29°
Thu, 2236° / 29°0.18Snow
36 °Snow

Bison, Thursday, 22 October

Snow. High 36°, low 29°.

Pressure29.91 inHg
Wind16.9 mph W
Humidity79%
Visibility—
Dew point29°
Fri, 2336° / 26°0Overcast
36 °Overcast

Bison, Friday, 23 October

Overcast. High 36°, low 26°.

Pressure30.36 inHg
Wind11.9 mph SW
Humidity74%
Visibility—
Dew point27°
Sat, 2439° / 25°0Overcast
39 °Overcast

Bison, Saturday, 24 October

Overcast. High 39°, low 25°.

Pressure30.30 inHg
Wind14.7 mph SW
Humidity77%
Visibility—
Dew point28°

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.