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As of 15:17 MDT

Weather in Bison, MT

51°Current weather

Bison, Wednesday, 14 October, 15:17

Clear. Feels like 48°. High 51°, low 26°.

Pressure30.15 inHg
Wind10.1 mph W
Humidity56%
Visibility6.2 mi
Dew point36°
Thu, 1547° / 23°0Clear
47 °Clear

Bison, Thursday, 15 October

Clear. High 47°, low 23°.

Pressure30.74 inHg
Wind1.8 mph E
Humidity75%
Visibility6.2 mi
Dew point20°
Fri, 1652° / 28°0Partly cloudy
52 °Partly cloudy

Bison, Friday, 16 October

Partly cloudy. High 52°, low 28°.

Pressure30.33 inHg
Wind11.5 mph SW
Humidity51%
Visibility6.2 mi
Dew point26°
Sat, 1753° / 35°0Partly cloudy
53 °Partly cloudy

Bison, Saturday, 17 October

Partly cloudy. High 53°, low 35°.

Pressure29.91 inHg
Wind18.5 mph SW
Humidity45%
Visibility2.3 mi
Dew point29°
Sun, 1850° / 32°0Clear
50 °Clear

Bison, Sunday, 18 October

Clear. High 50°, low 32°.

Pressure30.12 inHg
Wind7 mph SW
Humidity53%
Visibility6.2 mi
Dew point25°
Mon, 1959° / 35°0Overcast
59 °Overcast

Bison, Monday, 19 October

Overcast. High 59°, low 35°.

Pressure29.97 inHg
Wind7.7 mph SW
Humidity43%
Visibility—
Dew point30°
Tue, 2049° / 33°0Overcast
49 °Overcast

Bison, Tuesday, 20 October

Overcast. High 49°, low 33°.

Pressure29.91 inHg
Wind5.7 mph W
Humidity50%
Visibility—
Dew point30°
Wed, 2150° / 31°0Clear
50 °Clear

Bison, Wednesday, 21 October

Clear. High 50°, low 31°.

Pressure29.91 inHg
Wind14.4 mph SW
Humidity46%
Visibility—
Dew point24°
Thu, 2251° / 32°0.03Light rain
51 °Light rain

Bison, Thursday, 22 October

Light rain. High 51°, low 32°.

Pressure29.83 inHg
Wind11.5 mph SW
Humidity34%
Visibility—
Dew point20°
Fri, 2339° / 27°0.17Snow
39 °Snow

Bison, Friday, 23 October

Snow. High 39°, low 27°.

Pressure30.30 inHg
Wind7.4 mph SW
Humidity54%
Visibility—
Dew point22°
Sat, 2440° / 24°0Overcast
40 °Overcast

Bison, Saturday, 24 October

Overcast. High 40°, low 24°.

Pressure30.47 inHg
Wind7.5 mph SW
Humidity67%
Visibility—
Dew point25°
Sun, 2545° / 26°0Overcast
45 °Overcast

Bison, Sunday, 25 October

Overcast. High 45°, low 26°.

Pressure30.36 inHg
Wind11.4 mph SW
Humidity57%
Visibility—
Dew point26°
Mon, 2647° / 31°0Overcast
47 °Overcast

Bison, Monday, 26 October

Overcast. High 47°, low 31°.

Pressure30.06 inHg
Wind14.8 mph SW
Humidity57%
Visibility—
Dew point28°
Tue, 2751° / 33°0Partly cloudy
51 °Partly cloudy

Bison, Tuesday, 27 October

Partly cloudy. High 51°, low 33°.

Pressure29.88 inHg
Wind16.1 mph W
Humidity62%
Visibility—
Dew point33°
Wed, 2852° / 36°0Partly cloudy
52 °Partly cloudy

Bison, Wednesday, 28 October

Partly cloudy. High 52°, low 36°.

Pressure29.80 inHg
Wind15.7 mph SW
Humidity66%
Visibility—
Dew point37°
Thu, 2954° / 39°0.09Light rain
54 °Light rain

Bison, Thursday, 29 October

Light rain. High 54°, low 39°.

Pressure29.80 inHg
Wind11.9 mph SW
Humidity82%
Visibility—
Dew point41°

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.