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As of 00:42 MDT

Weather in Dewey, MT

31°Current weather

Dewey, Sunday, 11 October, 00:42

Light snow. Feels like 27°. High 33°, low 28°.

Pressure29.91 inHg
Wind3.9 mph E
Humidity94%
Visibility1.7 mi
Dew point30°
Mon, 1243° / 27°0.06Snow
43 °Snow

Dewey, Monday, 12 October

Snow. High 43°, low 27°.

Pressure30.06 inHg
Wind2.8 mph E
Humidity94%
Visibility6.2 mi
Dew point26°
Tue, 1348° / 24°0Clear
48 °Clear

Dewey, Tuesday, 13 October

Clear. High 48°, low 24°.

Pressure30.03 inHg
Wind1.2 mph N
Humidity70%
Visibility2.7 mi
Dew point27°
Wed, 1455° / 22°0Clear
55 °Clear

Dewey, Wednesday, 14 October

Clear. High 55°, low 22°.

Pressure30.18 inHg
Wind0.7 mph W
Humidity49%
Visibility6.2 mi
Dew point14°
Thu, 1552° / 31°0Clear
52 °Clear

Dewey, Thursday, 15 October

Clear. High 52°, low 31°.

Pressure30.47 inHg
Wind3.3 mph E
Humidity59%
Visibility—
Dew point33°
Fri, 1660° / 32°0Partly cloudy
60 °Partly cloudy

Dewey, Friday, 16 October

Partly cloudy. High 60°, low 32°.

Pressure30.39 inHg
Wind5.1 mph SW
Humidity53%
Visibility—
Dew point33°
Sat, 1762° / 38°0Overcast
62 °Overcast

Dewey, Saturday, 17 October

Overcast. High 62°, low 38°.

Pressure30.18 inHg
Wind6.1 mph SW
Humidity29%
Visibility—
Dew point23°
Sun, 1864° / 44°0Overcast
64 °Overcast

Dewey, Sunday, 18 October

Overcast. High 64°, low 44°.

Pressure30.09 inHg
Wind5.8 mph SW
Humidity29%
Visibility—
Dew point25°
Mon, 1964° / 44°0Overcast
64 °Overcast

Dewey, Monday, 19 October

Overcast. High 64°, low 44°.

Pressure30.03 inHg
Wind14.4 mph W
Humidity23%
Visibility—
Dew point22°
Tue, 2053° / 41°0Mostly clear
53 °Mostly clear

Dewey, Tuesday, 20 October

Mostly clear. High 53°, low 41°.

Pressure30.03 inHg
Wind17.9 mph W
Humidity45%
Visibility—
Dew point30°
Wed, 2159° / 36°0Overcast
59 °Overcast

Dewey, Wednesday, 21 October

Overcast. High 59°, low 36°.

Pressure30.06 inHg
Wind4.9 mph W
Humidity26%
Visibility—
Dew point17°
Thu, 2263° / 38°0Mostly clear
63 °Mostly clear

Dewey, Thursday, 22 October

Mostly clear. High 63°, low 38°.

Pressure30.12 inHg
Wind7.5 mph W
Humidity28%
Visibility—
Dew point23°
Fri, 2365° / 41°0Clear
65 °Clear

Dewey, Friday, 23 October

Clear. High 65°, low 41°.

Pressure30.12 inHg
Wind4.2 mph W
Humidity25%
Visibility—
Dew point23°
Sat, 2465° / 41°0Clear
65 °Clear

Dewey, Saturday, 24 October

Clear. High 65°, low 41°.

Pressure30.06 inHg
Wind5.8 mph W
Humidity21%
Visibility—
Dew point19°
Sun, 2562° / 42°0Overcast
62 °Overcast

Dewey, Sunday, 25 October

Overcast. High 62°, low 42°.

Pressure29.97 inHg
Wind14.7 mph W
Humidity26%
Visibility—
Dew point23°
Mon, 2655° / 39°0Partly cloudy
55 °Partly cloudy

Dewey, Monday, 26 October

Partly cloudy. High 55°, low 39°.

Pressure29.91 inHg
Wind13.3 mph W
Humidity23%
Visibility—
Dew point16°

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.