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As of 06:59 MDT

Weather in Dewey, MT

29°Current weather

Dewey, Sunday, 11 October, 06:59

Snow. Feels like 24°. High 32°, low 28°.

Pressure29.94 inHg
Wind3.8 mph E
Humidity96%
Visibility2.5 mi
Dew point28°
Mon, 1240° / 23°0.06Snow
40 °Snow

Dewey, Monday, 12 October

Snow. High 40°, low 23°.

Pressure30.03 inHg
Wind2.4 mph E
Humidity94%
Visibility6.2 mi
Dew point26°
Tue, 1348° / 20°0Clear
48 °Clear

Dewey, Tuesday, 13 October

Clear. High 48°, low 20°.

Pressure30.00 inHg
Wind1.4 mph NE
Humidity67%
Visibility6.2 mi
Dew point27°
Wed, 1454° / 19°0Clear
54 °Clear

Dewey, Wednesday, 14 October

Clear. High 54°, low 19°.

Pressure30.15 inHg
Wind0.9 mph NW
Humidity53%
Visibility6.2 mi
Dew point16°
Thu, 1550° / 30°0Clear
50 °Clear

Dewey, Thursday, 15 October

Clear. High 50°, low 30°.

Pressure30.53 inHg
Wind3.6 mph E
Humidity63%
Visibility—
Dew point33°
Fri, 1658° / 29°0Clear
58 °Clear

Dewey, Friday, 16 October

Clear. High 58°, low 29°.

Pressure30.42 inHg
Wind5 mph SW
Humidity49%
Visibility—
Dew point32°
Sat, 1764° / 39°0Mostly clear
64 °Mostly clear

Dewey, Saturday, 17 October

Mostly clear. High 64°, low 39°.

Pressure30.12 inHg
Wind6.1 mph SW
Humidity27%
Visibility—
Dew point22°
Sun, 1863° / 44°0Overcast
63 °Overcast

Dewey, Sunday, 18 October

Overcast. High 63°, low 44°.

Pressure30.00 inHg
Wind12.3 mph SW
Humidity28%
Visibility—
Dew point24°
Mon, 1959° / 41°0Overcast
59 °Overcast

Dewey, Monday, 19 October

Overcast. High 59°, low 41°.

Pressure29.88 inHg
Wind16.3 mph W
Humidity25%
Visibility—
Dew point22°
Tue, 2047° / 33°0Overcast
47 °Overcast

Dewey, Tuesday, 20 October

Overcast. High 47°, low 33°.

Pressure29.97 inHg
Wind11.5 mph W
Humidity33%
Visibility—
Dew point18°
Wed, 2153° / 30°0Overcast
53 °Overcast

Dewey, Wednesday, 21 October

Overcast. High 53°, low 30°.

Pressure30.12 inHg
Wind5 mph S
Humidity28%
Visibility—
Dew point14°
Thu, 2255° / 37°0.02Light rain
55 °Light rain

Dewey, Thursday, 22 October

Light rain. High 55°, low 37°.

Pressure29.91 inHg
Wind6.3 mph W
Humidity31%
Visibility—
Dew point22°
Fri, 2352° / 35°0Clear
52 °Clear

Dewey, Friday, 23 October

Clear. High 52°, low 35°.

Pressure30.21 inHg
Wind5.2 mph W
Humidity52%
Visibility—
Dew point29°
Sat, 2455° / 34°0Overcast
55 °Overcast

Dewey, Saturday, 24 October

Overcast. High 55°, low 34°.

Pressure30.30 inHg
Wind3.5 mph NE
Humidity41%
Visibility—
Dew point26°
Sun, 2560° / 35°0Clear
60 °Clear

Dewey, Sunday, 25 October

Clear. High 60°, low 35°.

Pressure30.30 inHg
Wind4.1 mph S
Humidity27%
Visibility—
Dew point20°
Mon, 2664° / 38°0Clear
64 °Clear

Dewey, Monday, 26 October

Clear. High 64°, low 38°.

Pressure30.09 inHg
Wind5 mph SW
Humidity21%
Visibility—
Dew point17°

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 Dewey, 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 Dewey, 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.