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As of 12:04 MDT

Weather in Bison, MT

68°Current weather

Bison, Saturday, 8 August, 12:04

Overcast. Feels like 67°. High 78°, low 45°.

Pressure29.97 inHg
Wind8.1 mph SW
Humidity37%
Visibility6.2 mi
Dew point40°
Sun, 0976° / 45°0Clear
76 °Clear

Bison, Sunday, 9 August

Clear. High 76°, low 45°.

Pressure29.91 inHg
Wind0.9 mph S
Humidity21%
Visibility6.2 mi
Dew point33°
Mon, 1078° / 52°0Clear
78 °Clear

Bison, Monday, 10 August

Clear. High 78°, low 52°.

Pressure29.88 inHg
Wind5.7 mph SW
Humidity20%
Visibility6.2 mi
Dew point30°
Tue, 1179° / 47°0Clear
79 °Clear

Bison, Tuesday, 11 August

Clear. High 79°, low 47°.

Pressure30.03 inHg
Wind4.2 mph NE
Humidity34%
Visibility6.2 mi
Dew point41°
Wed, 1272° / 48°0Overcast
72 °Overcast

Bison, Wednesday, 12 August

Overcast. High 72°, low 48°.

Pressure30.06 inHg
Wind7.7 mph E
Humidity48%
Visibility6.2 mi
Dew point44°
Thu, 1376° / 43°0Overcast
76 °Overcast

Bison, Thursday, 13 August

Overcast. High 76°, low 43°.

Pressure29.94 inHg
Wind5.7 mph N
Humidity43%
Visibility—
Dew point41°
Fri, 1472° / 44°0Clear
72 °Clear

Bison, Friday, 14 August

Clear. High 72°, low 44°.

Pressure30.00 inHg
Wind11.4 mph NE
Humidity42%
Visibility—
Dew point40°
Sat, 1568° / 52°0.01Light rain
68 °Light rain

Bison, Saturday, 15 August

Light rain. High 68°, low 52°.

Pressure30.00 inHg
Wind4.9 mph W
Humidity42%
Visibility—
Dew point42°
Sun, 1677° / 51°0Partly cloudy
77 °Partly cloudy

Bison, Sunday, 16 August

Partly cloudy. High 77°, low 51°.

Pressure30.00 inHg
Wind11.5 mph W
Humidity34%
Visibility—
Dew point41°
Mon, 1777° / 52°0Overcast
77 °Overcast

Bison, Monday, 17 August

Overcast. High 77°, low 52°.

Pressure30.03 inHg
Wind10.5 mph W
Humidity22%
Visibility—
Dew point30°
Tue, 1877° / 51°0Overcast
77 °Overcast

Bison, Tuesday, 18 August

Overcast. High 77°, low 51°.

Pressure30.06 inHg
Wind6.6 mph E
Humidity39%
Visibility—
Dew point44°
Wed, 1982° / 55°0Overcast
82 °Overcast

Bison, Wednesday, 19 August

Overcast. High 82°, low 55°.

Pressure29.97 inHg
Wind7 mph E
Humidity26%
Visibility—
Dew point38°
Thu, 2089° / 59°0Clear
89 °Clear

Bison, Thursday, 20 August

Clear. High 89°, low 59°.

Pressure29.83 inHg
Wind6.3 mph SE
Humidity20%
Visibility—
Dew point39°
Fri, 2184° / 63°0Overcast
84 °Overcast

Bison, Friday, 21 August

Overcast. High 84°, low 63°.

Pressure29.88 inHg
Wind8.9 mph SW
Humidity32%
Visibility—
Dew point46°
Sat, 2273° / 54°0Partly cloudy
73 °Partly cloudy

Bison, Saturday, 22 August

Partly cloudy. High 73°, low 54°.

Pressure29.94 inHg
Wind16.4 mph SW
Humidity45%
Visibility—
Dew point45°
Sun, 2371° / 43°0Partly cloudy
71 °Partly cloudy

Bison, Sunday, 23 August

Partly cloudy. High 71°, low 43°.

Pressure29.91 inHg
Wind15.5 mph W
Humidity19%
Visibility—
Dew point21°

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.