As of 10:01 MDT

Weather in Bison, MT

26°

Bison, Sunday, 11 October, 10:01

Light snow. Feels like 16°. High 28°, low 26°.

Pressure30.12 inHg

Wind12 mph NE

Humidity86%

Visibility1.0 mi

Dew point23°

See detailed hourly forecast

Mon, 1236° / 22°

0.13

36 °

Bison, Monday, 12 October

Snow. High 36°, low 22°.

Pressure30.06 inHg

Wind3.2 mph SW

Humidity91%

Visibility6.2 mi

Dew point23°

Tue, 1344° / 21°

44 °

Bison, Tuesday, 13 October

Clear. High 44°, low 21°.

Pressure30.12 inHg

Wind5 mph SW

Humidity77%

Visibility6.2 mi

Dew point28°

Wed, 1443° / 28°

43 °

Bison, Wednesday, 14 October

Overcast. High 43°, low 28°.

Pressure30.15 inHg

Wind10.3 mph SW

Humidity71%

Visibility6.2 mi

Dew point29°

Thu, 1547° / 31°

47 °

Bison, Thursday, 15 October

Clear. High 47°, low 31°.

Pressure30.62 inHg

Wind6.4 mph SW

Humidity72%

Visibility—

Dew point30°

Fri, 1656° / 36°

56 °

Bison, Friday, 16 October

Clear. High 56°, low 36°.

Pressure30.24 inHg

Wind14.8 mph SW

Humidity49%

Visibility—

Dew point31°

Sat, 1759° / 42°

59 °

Bison, Saturday, 17 October

Overcast. High 59°, low 42°.

Pressure29.94 inHg

Wind25.7 mph SW

Humidity55%

Visibility—

Dew point38°

Sun, 1853° / 40°

53 °

Bison, Sunday, 18 October

Partly cloudy. High 53°, low 40°.

Pressure29.97 inHg

Wind18.2 mph W

Humidity46%

Visibility—

Dew point30°

Mon, 1952° / 38°

52 °

Bison, Monday, 19 October

Partly cloudy. High 52°, low 38°.

Pressure29.80 inHg

Wind16.1 mph W

Humidity49%

Visibility—

Dew point31°

Tue, 2043° / 33°

43 °

Bison, Tuesday, 20 October

Overcast. High 43°, low 33°.

Pressure30.03 inHg

Wind11.2 mph SW

Humidity70%

Visibility—

Dew point31°

Wed, 2142° / 31°

0.03

42 °

Bison, Wednesday, 21 October

Snow. High 42°, low 31°.

Pressure30.00 inHg

Wind13.9 mph W

Humidity61%

Visibility—

Dew point27°

Thu, 2246° / 30°

46 °

Bison, Thursday, 22 October

Partly cloudy. High 46°, low 30°.

Pressure30.09 inHg

Wind11.1 mph SW

Humidity53%

Visibility—

Dew point25°

Fri, 2351° / 32°

51 °

Bison, Friday, 23 October

Partly cloudy. High 51°, low 32°.

Pressure29.88 inHg

Wind17.9 mph SW

Humidity30%

Visibility—

Dew point18°

Sat, 2449° / 32°

49 °

Bison, Saturday, 24 October

Overcast. High 49°, low 32°.

Pressure30.09 inHg

Wind10.5 mph W

Humidity42%

Visibility—

Dew point22°

Sun, 2551° / 31°

51 °

Bison, Sunday, 25 October

Overcast. High 51°, low 31°.

Pressure30.27 inHg

Wind12 mph W

Humidity42%

Visibility—

Dew point22°

Mon, 2653° / 34°

53 °

Bison, Monday, 26 October

Overcast. High 53°, low 34°.

Pressure29.91 inHg

Wind20.1 mph W

Humidity40%

Visibility—

Dew point22°

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.