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As of 11:35 MDT

Weather in Acton, MT

91°Current weather

Acton, Saturday, 8 August, 11:35

Clear. Feels like 86°. High 95°, low 61°.

Pressure29.77 inHg
Wind8.6 mph NW
Humidity14%
Visibility6.2 mi
Dew point35°
Sun, 0992° / 58°0Partly cloudy
92 °Partly cloudy

Acton, Sunday, 9 August

Partly cloudy. High 92°, low 58°.

Pressure29.80 inHg
Wind15 mph NW
Humidity10%
Visibility6.2 mi
Dew point26°
Mon, 1091° / 61°0Clear
91 °Clear

Acton, Monday, 10 August

Clear. High 91°, low 61°.

Pressure29.83 inHg
Wind6.7 mph E
Humidity23%
Visibility6.2 mi
Dew point40°
Tue, 1190° / 64°0Clear
90 °Clear

Acton, Tuesday, 11 August

Clear. High 90°, low 64°.

Pressure29.91 inHg
Wind6 mph NE
Humidity21%
Visibility6.2 mi
Dew point40°
Wed, 1282° / 64°0Overcast
82 °Overcast

Acton, Wednesday, 12 August

Overcast. High 82°, low 64°.

Pressure29.97 inHg
Wind19 mph E
Humidity33%
Visibility—
Dew point44°
Thu, 1386° / 55°0Overcast
86 °Overcast

Acton, Thursday, 13 August

Overcast. High 86°, low 55°.

Pressure29.97 inHg
Wind18.1 mph E
Humidity32%
Visibility—
Dew point41°
Fri, 1484° / 60°0Overcast
84 °Overcast

Acton, Friday, 14 August

Overcast. High 84°, low 60°.

Pressure29.85 inHg
Wind12.2 mph NE
Humidity31%
Visibility—
Dew point44°
Sat, 1583° / 67°0.13Light rain
83 °Light rain

Acton, Saturday, 15 August

Light rain. High 83°, low 67°.

Pressure29.94 inHg
Wind15.7 mph NW
Humidity41%
Visibility—
Dew point53°
Sun, 1687° / 59°0.01Light rain
87 °Light rain

Acton, Sunday, 16 August

Light rain. High 87°, low 59°.

Pressure29.97 inHg
Wind14.2 mph N
Humidity29%
Visibility—
Dew point43°
Mon, 1793° / 65°0Overcast
93 °Overcast

Acton, Monday, 17 August

Overcast. High 93°, low 65°.

Pressure29.91 inHg
Wind18.1 mph N
Humidity17%
Visibility—
Dew point36°
Tue, 1880° / 65°0.01Light rain
80 °Light rain

Acton, Tuesday, 18 August

Light rain. High 80°, low 65°.

Pressure30.03 inHg
Wind10.8 mph E
Humidity31%
Visibility—
Dew point44°
Wed, 1982° / 66°0Overcast
82 °Overcast

Acton, Wednesday, 19 August

Overcast. High 82°, low 66°.

Pressure30.06 inHg
Wind16.4 mph E
Humidity42%
Visibility—
Dew point51°
Thu, 2093° / 60°0.02Light rain
93 °Light rain

Acton, Thursday, 20 August

Light rain. High 93°, low 60°.

Pressure29.88 inHg
Wind12.2 mph E
Humidity35%
Visibility—
Dew point49°
Fri, 2197° / 70°0Overcast
97 °Overcast

Acton, Friday, 21 August

Overcast. High 97°, low 70°.

Pressure29.80 inHg
Wind12.1 mph SW
Humidity25%
Visibility—
Dew point47°
Sat, 2293° / 68°0.02Light rain
93 °Light rain

Acton, Saturday, 22 August

Light rain. High 93°, low 68°.

Pressure29.83 inHg
Wind30.3 mph NW
Humidity23%
Visibility—
Dew point45°
Sun, 2390° / 66°0Overcast
90 °Overcast

Acton, Sunday, 23 August

Overcast. High 90°, low 66°.

Pressure29.85 inHg
Wind9.3 mph W
Humidity30%
Visibility—
Dew point45°

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 Acton, 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 Acton, 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.