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As of 23:19 MDT

Weather in Bison, MT

25°Current weather

Bison, Sunday, 11 October, 23:19

Snow. Feels like 16°. High 28°, low 25°.

Pressure30.09 inHg
Wind8.4 mph NE
Humidity92%
Visibility0.9 mi
Dew point24°
Mon, 1237° / 24°0.13Snow
37 °Snow

Bison, Monday, 12 October

Snow. High 37°, low 24°.

Pressure30.09 inHg
Wind3.1 mph SW
Humidity92%
Visibility6.2 mi
Dew point22°
Tue, 1342° / 26°0Clear
42 °Clear

Bison, Tuesday, 13 October

Clear. High 42°, low 26°.

Pressure30.15 inHg
Wind5.3 mph SW
Humidity77%
Visibility6.2 mi
Dew point27°
Wed, 1442° / 28°0Overcast
42 °Overcast

Bison, Wednesday, 14 October

Overcast. High 42°, low 28°.

Pressure30.15 inHg
Wind10.1 mph W
Humidity73%
Visibility6.2 mi
Dew point30°
Thu, 1546° / 27°0Clear
46 °Clear

Bison, Thursday, 15 October

Clear. High 46°, low 27°.

Pressure30.62 inHg
Wind1.1 mph SE
Humidity70%
Visibility6.2 mi
Dew point27°
Fri, 1654° / 34°0Mostly clear
54 °Mostly clear

Bison, Friday, 16 October

Mostly clear. High 54°, low 34°.

Pressure30.24 inHg
Wind13.5 mph SW
Humidity48%
Visibility—
Dew point29°
Sat, 1755° / 42°0Mostly clear
55 °Mostly clear

Bison, Saturday, 17 October

Mostly clear. High 55°, low 42°.

Pressure29.83 inHg
Wind24.3 mph W
Humidity46%
Visibility—
Dew point31°
Sun, 1851° / 39°0.11Light rain
51 °Light rain

Bison, Sunday, 18 October

Light rain. High 51°, low 39°.

Pressure29.91 inHg
Wind18 mph SW
Humidity57%
Visibility—
Dew point33°
Mon, 1952° / 37°0.03Light rain
52 °Light rain

Bison, Monday, 19 October

Light rain. High 52°, low 37°.

Pressure29.74 inHg
Wind9.6 mph SW
Humidity51%
Visibility—
Dew point32°
Tue, 2040° / 34°0.07Snow
40 °Snow

Bison, Tuesday, 20 October

Snow. High 40°, low 34°.

Pressure29.77 inHg
Wind9.1 mph SW
Humidity79%
Visibility—
Dew point32°
Wed, 2137° / 30°0.07Snow
37 °Snow

Bison, Wednesday, 21 October

Snow. High 37°, low 30°.

Pressure30.09 inHg
Wind12.1 mph SW
Humidity78%
Visibility—
Dew point29°
Thu, 2243° / 30°0Overcast
43 °Overcast

Bison, Thursday, 22 October

Overcast. High 43°, low 30°.

Pressure30.18 inHg
Wind16.6 mph SW
Humidity80%
Visibility—
Dew point33°
Fri, 2351° / 34°0Overcast
51 °Overcast

Bison, Friday, 23 October

Overcast. High 51°, low 34°.

Pressure29.77 inHg
Wind11.7 mph SW
Humidity64%
Visibility—
Dew point35°
Sat, 2438° / 36°0.16Snow
38 °Snow

Bison, Saturday, 24 October

Snow. High 38°, low 36°.

Pressure29.85 inHg
Wind9.3 mph SW
Humidity99%
Visibility—
Dew point36°
Sun, 2541° / 30°0Overcast
41 °Overcast

Bison, Sunday, 25 October

Overcast. High 41°, low 30°.

Pressure30.03 inHg
Wind8.4 mph SW
Humidity78%
Visibility—
Dew point30°
Mon, 2646° / 29°0Overcast
46 °Overcast

Bison, Monday, 26 October

Overcast. High 46°, low 29°.

Pressure30.15 inHg
Wind7.2 mph SW
Humidity60%
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.