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As of 15:59 MDT

Weather in Bison, MT

64°Current weather

Bison, Friday, 9 October, 15:59

Mostly clear. Feels like 61°. High 64°, low 35°.

Pressure29.41 inHg
Wind22.2 mph SW
Humidity31%
Visibility6.2 mi
Dew point33°
Sat, 1041° / 23°0.05Light snow
41 °Light snow

Bison, Saturday, 10 October

Light snow. High 41°, low 23°.

Pressure29.88 inHg
Wind9.1 mph N
Humidity89%
Visibility6.2 mi
Dew point25°
Sun, 1124° / 19°0.77Snow
24 °Snow

Bison, Sunday, 11 October

Snow. High 24°, low 19°.

Pressure30.21 inHg
Wind14.7 mph NE
Humidity99%
Visibility1.2 mi
Dew point22°
Mon, 1236° / 21°0.22Snow
36 °Snow

Bison, Monday, 12 October

Snow. High 36°, low 21°.

Pressure30.18 inHg
Wind1.6 mph SW
Humidity94%
Visibility5.8 mi
Dew point21°
Tue, 1343° / 22°0Clear
43 °Clear

Bison, Tuesday, 13 October

Clear. High 43°, low 22°.

Pressure30.09 inHg
Wind4.8 mph SW
Humidity75%
Visibility6.2 mi
Dew point27°
Wed, 1445° / 28°0Clear
45 °Clear

Bison, Wednesday, 14 October

Clear. High 45°, low 28°.

Pressure30.06 inHg
Wind11.4 mph W
Humidity64%
Visibility—
Dew point29°
Thu, 1537° / 30°0.07Light snow
37 °Light snow

Bison, Thursday, 15 October

Light snow. High 37°, low 30°.

Pressure30.42 inHg
Wind6.9 mph W
Humidity91%
Visibility—
Dew point33°
Fri, 1651° / 23°0Partly cloudy
51 °Partly cloudy

Bison, Friday, 16 October

Partly cloudy. High 51°, low 23°.

Pressure30.47 inHg
Wind9 mph SW
Humidity57%
Visibility—
Dew point26°
Sat, 1754° / 34°0Overcast
54 °Overcast

Bison, Saturday, 17 October

Overcast. High 54°, low 34°.

Pressure30.18 inHg
Wind11.7 mph SW
Humidity49%
Visibility—
Dew point29°
Sun, 1858° / 37°0Partly cloudy
58 °Partly cloudy

Bison, Sunday, 18 October

Partly cloudy. High 58°, low 37°.

Pressure30.06 inHg
Wind12.3 mph SW
Humidity40%
Visibility—
Dew point28°
Mon, 1963° / 41°0Overcast
63 °Overcast

Bison, Monday, 19 October

Overcast. High 63°, low 41°.

Pressure29.91 inHg
Wind14.2 mph W
Humidity29%
Visibility—
Dew point24°
Tue, 2055° / 38°0Clear
55 °Clear

Bison, Tuesday, 20 October

Clear. High 55°, low 38°.

Pressure29.97 inHg
Wind7.2 mph SW
Humidity49%
Visibility—
Dew point33°
Wed, 2158° / 35°0Clear
58 °Clear

Bison, Wednesday, 21 October

Clear. High 58°, low 35°.

Pressure30.09 inHg
Wind8.3 mph SW
Humidity44%
Visibility—
Dew point30°
Thu, 2261° / 41°0.15Rain
61 °Rain

Bison, Thursday, 22 October

Rain. High 61°, low 41°.

Pressure29.65 inHg
Wind6.9 mph W
Humidity29%
Visibility—
Dew point26°
Fri, 2346° / 36°0.05Light rain
46 °Light rain

Bison, Friday, 23 October

Light rain. High 46°, low 36°.

Pressure29.97 inHg
Wind6.7 mph W
Humidity78%
Visibility—
Dew point36°
Sat, 2452° / 34°0Clear
52 °Clear

Bison, Saturday, 24 October

Clear. High 52°, low 34°.

Pressure30.03 inHg
Wind4 mph E
Humidity32%
Visibility—
Dew point19°

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.