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As of 17:41 MDT

Weather in Dewey, MT

84°Current weather

Dewey, Saturday, 8 August, 17:41

Clear. Feels like 81°. High 84°, low 49°.

Pressure29.80 inHg
Wind13.2 mph NW
Humidity13%
Visibility6.2 mi
Dew point28°
Sun, 0983° / 49°0Clear
83 °Clear

Dewey, Sunday, 9 August

Clear. High 83°, low 49°.

Pressure29.88 inHg
Wind3.6 mph N
Humidity15%
Visibility6.2 mi
Dew point26°
Mon, 1087° / 47°0Clear
87 °Clear

Dewey, Monday, 10 August

Clear. High 87°, low 47°.

Pressure29.85 inHg
Wind14 mph W
Humidity13%
Visibility6.2 mi
Dew point24°
Tue, 1186° / 52°0Clear
86 °Clear

Dewey, Tuesday, 11 August

Clear. High 86°, low 52°.

Pressure29.94 inHg
Wind7.1 mph W
Humidity12%
Visibility6.2 mi
Dew point23°
Wed, 1287° / 55°0Light rain
87 °Light rain

Dewey, Wednesday, 12 August

Light rain. High 87°, low 55°.

Pressure29.83 inHg
Wind9.2 mph W
Humidity14%
Visibility6.2 mi
Dew point26°
Thu, 1386° / 53°0.01Light rain
86 °Light rain

Dewey, Thursday, 13 August

Light rain. High 86°, low 53°.

Pressure29.77 inHg
Wind8.9 mph SW
Humidity17%
Visibility—
Dew point31°
Fri, 1487° / 59°0.02Light rain
87 °Light rain

Dewey, Friday, 14 August

Light rain. High 87°, low 59°.

Pressure29.85 inHg
Wind12.9 mph W
Humidity17%
Visibility—
Dew point31°
Sat, 1577° / 56°0.16Light rain
77 °Light rain

Dewey, Saturday, 15 August

Light rain. High 77°, low 56°.

Pressure30.09 inHg
Wind5.7 mph S
Humidity67%
Visibility—
Dew point51°
Sun, 1680° / 53°0Clear
80 °Clear

Dewey, Sunday, 16 August

Clear. High 80°, low 53°.

Pressure30.03 inHg
Wind16.1 mph SW
Humidity21%
Visibility—
Dew point33°
Mon, 1786° / 55°0Partly cloudy
86 °Partly cloudy

Dewey, Monday, 17 August

Partly cloudy. High 86°, low 55°.

Pressure30.03 inHg
Wind12.9 mph W
Humidity14%
Visibility—
Dew point26°
Tue, 1879° / 58°0.1Light rain
79 °Light rain

Dewey, Tuesday, 18 August

Light rain. High 79°, low 58°.

Pressure29.91 inHg
Wind14.7 mph W
Humidity31%
Visibility—
Dew point44°
Wed, 1981° / 48°0Clear
81 °Clear

Dewey, Wednesday, 19 August

Clear. High 81°, low 48°.

Pressure30.06 inHg
Wind5.1 mph NE
Humidity25%
Visibility—
Dew point34°
Thu, 2086° / 56°0Overcast
86 °Overcast

Dewey, Thursday, 20 August

Overcast. High 86°, low 56°.

Pressure29.94 inHg
Wind9.7 mph W
Humidity21%
Visibility—
Dew point35°
Fri, 2188° / 58°0Clear
88 °Clear

Dewey, Friday, 21 August

Clear. High 88°, low 58°.

Pressure29.94 inHg
Wind8.7 mph W
Humidity16%
Visibility—
Dew point30°
Sat, 2290° / 59°0Clear
90 °Clear

Dewey, Saturday, 22 August

Clear. High 90°, low 59°.

Pressure29.94 inHg
Wind9.6 mph NW
Humidity17%
Visibility—
Dew point32°
Sun, 2389° / 60°0Overcast
89 °Overcast

Dewey, Sunday, 23 August

Overcast. High 89°, low 60°.

Pressure30.00 inHg
Wind10.5 mph NE
Humidity21%
Visibility—
Dew point37°

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.