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As of 11:36 MDT

Weather in Darby, MT

51°Current weather

Darby, Sunday, 18 October, 11:36

Clear. Feels like 49°. High 62°, low 35°.

Pressure30.09 inHg
Wind2.3 mph E
Humidity59%
Visibility6.2 mi
Dew point38°
Mon, 1967° / 35°0Partly cloudy
67 °Partly cloudy

Darby, Monday, 19 October

Partly cloudy. High 67°, low 35°.

Pressure29.88 inHg
Wind4.6 mph SE
Humidity38%
Visibility6.2 mi
Dew point35°
Tue, 2064° / 40°0Partly cloudy
64 °Partly cloudy

Darby, Tuesday, 20 October

Partly cloudy. High 64°, low 40°.

Pressure30.03 inHg
Wind1.6 mph E
Humidity43%
Visibility6.2 mi
Dew point34°
Wed, 2166° / 40°0Light rain
66 °Light rain

Darby, Wednesday, 21 October

Light rain. High 66°, low 40°.

Pressure30.03 inHg
Wind3.1 mph SE
Humidity48%
Visibility6.2 mi
Dew point38°
Thu, 2267° / 44°0.06Light rain
67 °Light rain

Darby, Thursday, 22 October

Light rain. High 67°, low 44°.

Pressure29.77 inHg
Wind6.4 mph S
Humidity54%
Visibility—
Dew point40°
Fri, 2347° / 37°0.02Light rain
47 °Light rain

Darby, Friday, 23 October

Light rain. High 47°, low 37°.

Pressure30.00 inHg
Wind9 mph W
Humidity73%
Visibility—
Dew point33°
Sat, 2457° / 33°0Overcast
57 °Overcast

Darby, Saturday, 24 October

Overcast. High 57°, low 33°.

Pressure30.30 inHg
Wind4.2 mph SW
Humidity47%
Visibility—
Dew point28°
Sun, 2562° / 41°0Overcast
62 °Overcast

Darby, Sunday, 25 October

Overcast. High 62°, low 41°.

Pressure30.03 inHg
Wind4.8 mph S
Humidity26%
Visibility—
Dew point20°
Mon, 2651° / 39°0Overcast
51 °Overcast

Darby, Monday, 26 October

Overcast. High 51°, low 39°.

Pressure29.91 inHg
Wind5.3 mph N
Humidity64%
Visibility—
Dew point34°
Tue, 2741° / 35°0.55Snow
41 °Snow

Darby, Tuesday, 27 October

Snow. High 41°, low 35°.

Pressure29.88 inHg
Wind5.7 mph W
Humidity88%
Visibility—
Dew point35°
Wed, 2847° / 28°0.05Light snow
47 °Light snow

Darby, Wednesday, 28 October

Light snow. High 47°, low 28°.

Pressure29.91 inHg
Wind7.2 mph SW
Humidity77%
Visibility—
Dew point33°
Thu, 2940° / 29°0.18Light snow
40 °Light snow

Darby, Thursday, 29 October

Light snow. High 40°, low 29°.

Pressure29.80 inHg
Wind5.5 mph N
Humidity83%
Visibility—
Dew point32°
Fri, 3036° / 20°0.27Snow
36 °Snow

Darby, Friday, 30 October

Snow. High 36°, low 20°.

Pressure30.33 inHg
Wind5.5 mph W
Humidity76%
Visibility—
Dew point24°
Sat, 3144° / 22°0Clear
44 °Clear

Darby, Saturday, 31 October

Clear. High 44°, low 22°.

Pressure30.15 inHg
Wind5.3 mph SW
Humidity72%
Visibility—
Dew point28°
Sun, 0147° / 27°0.03Light snow
47 °Light snow

Darby, Sunday, 1 November

Light snow. High 47°, low 27°.

Pressure29.97 inHg
Wind5.3 mph S
Humidity71%
Visibility—
Dew point30°
Mon, 0247° / 38°0.41Snow
47 °Snow

Darby, Monday, 2 November

Snow. High 47°, low 38°.

Pressure29.88 inHg
Wind5.8 mph SW
Humidity97%
Visibility—
Dew point44°

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 Darby, 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 Darby, 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.