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As of 17:40 MDT

Weather in Bison, MT

31°Current weather

Bison, Saturday, 10 October, 17:40

Snow. Feels like 21°. High 44°, low 28°.

Pressure30.00 inHg
Wind12.7 mph NE
Humidity86%
Visibility3.1 mi
Dew point28°
Sun, 1127° / 21°0.68Snow
27 °Snow

Bison, Sunday, 11 October

Snow. High 27°, low 21°.

Pressure30.21 inHg
Wind12.4 mph NE
Humidity99%
Visibility1.1 mi
Dew point22°
Mon, 1237° / 20°0.11Light snow
37 °Light snow

Bison, Monday, 12 October

Light snow. High 37°, low 20°.

Pressure30.09 inHg
Wind2.9 mph SW
Humidity91%
Visibility6.2 mi
Dew point23°
Tue, 1343° / 21°0Clear
43 °Clear

Bison, Tuesday, 13 October

Clear. High 43°, low 21°.

Pressure30.12 inHg
Wind5.1 mph W
Humidity78%
Visibility6.2 mi
Dew point28°
Wed, 1443° / 28°0Overcast
43 °Overcast

Bison, Wednesday, 14 October

Overcast. High 43°, low 28°.

Pressure30.12 inHg
Wind9.8 mph SW
Humidity66%
Visibility6.2 mi
Dew point28°
Thu, 1546° / 32°0Clear
46 °Clear

Bison, Thursday, 15 October

Clear. High 46°, low 32°.

Pressure30.50 inHg
Wind3.8 mph W
Humidity63%
Visibility—
Dew point31°
Fri, 1645° / 30°0Overcast
45 °Overcast

Bison, Friday, 16 October

Overcast. High 45°, low 30°.

Pressure30.50 inHg
Wind8.9 mph SW
Humidity47%
Visibility—
Dew point21°
Sat, 1752° / 29°0Overcast
52 °Overcast

Bison, Saturday, 17 October

Overcast. High 52°, low 29°.

Pressure30.15 inHg
Wind13.6 mph SW
Humidity43%
Visibility—
Dew point24°
Sun, 1855° / 36°0Partly cloudy
55 °Partly cloudy

Bison, Sunday, 18 October

Partly cloudy. High 55°, low 36°.

Pressure29.97 inHg
Wind13 mph SW
Humidity39%
Visibility—
Dew point26°
Mon, 1957° / 34°0Overcast
57 °Overcast

Bison, Monday, 19 October

Overcast. High 57°, low 34°.

Pressure29.97 inHg
Wind13.3 mph SW
Humidity43%
Visibility—
Dew point28°
Tue, 2040° / 37°0.28Rain
40 °Rain

Bison, Tuesday, 20 October

Rain. High 40°, low 37°.

Pressure29.88 inHg
Wind24.7 mph W
Humidity92%
Visibility—
Dew point35°
Wed, 2143° / 28°0Partly cloudy
43 °Partly cloudy

Bison, Wednesday, 21 October

Partly cloudy. High 43°, low 28°.

Pressure30.15 inHg
Wind11.7 mph W
Humidity59%
Visibility—
Dew point26°
Thu, 2251° / 30°0Overcast
51 °Overcast

Bison, Thursday, 22 October

Overcast. High 51°, low 30°.

Pressure30.30 inHg
Wind10 mph SW
Humidity45%
Visibility—
Dew point23°
Fri, 2360° / 37°0Overcast
60 °Overcast

Bison, Friday, 23 October

Overcast. High 60°, low 37°.

Pressure30.09 inHg
Wind10.1 mph SW
Humidity41%
Visibility—
Dew point28°
Sat, 2462° / 40°0Overcast
62 °Overcast

Bison, Saturday, 24 October

Overcast. High 62°, low 40°.

Pressure29.97 inHg
Wind8.2 mph SW
Humidity41%
Visibility—
Dew point32°
Sun, 2560° / 44°0Overcast
60 °Overcast

Bison, Sunday, 25 October

Overcast. High 60°, low 44°.

Pressure30.03 inHg
Wind9.8 mph SW
Humidity47%
Visibility—
Dew point33°

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.