As of 03:05 MDT

Weather in Darby, MT

43°

Darby, Tuesday, 20 October, 03:05

Clear. Feels like 43°. High 64°, low 37°.

Pressure30.06 inHg

Wind1.9 mph SW

Humidity76%

Visibility6.2 mi

Dew point35°

See detailed hourly forecast

Wed, 2166° / 37°

66 °

Darby, Wednesday, 21 October

Overcast. High 66°, low 37°.

Pressure30.00 inHg

Wind4.3 mph SE

Humidity44%

Visibility6.2 mi

Dew point39°

Thu, 2267° / 42°

0.05

67 °

Darby, Thursday, 22 October

Light rain. High 67°, low 42°.

Pressure29.85 inHg

Wind3.5 mph SE

Humidity56%

Visibility6.2 mi

Dew point44°

Fri, 2349° / 41°

0.7

49 °

Darby, Friday, 23 October

Rain. High 49°, low 41°.

Pressure30.00 inHg

Wind2.1 mph SW

Humidity89%

Visibility4.9 mi

Dew point38°

Sat, 2455° / 36°

55 °

Darby, Saturday, 24 October

Overcast. High 55°, low 36°.

Pressure30.24 inHg

Wind6 mph SE

Humidity58%

Visibility—

Dew point33°

Sun, 2557° / 32°

57 °

Darby, Sunday, 25 October

Mostly clear. High 57°, low 32°.

Pressure30.27 inHg

Wind3.9 mph NE

Humidity47%

Visibility—

Dew point31°

Mon, 2652° / 30°

52 °

Darby, Monday, 26 October

Clear. High 52°, low 30°.

Pressure30.36 inHg

Wind5.3 mph NE

Humidity42%

Visibility—

Dew point21°

Tue, 2754° / 27°

54 °

Darby, Tuesday, 27 October

Clear. High 54°, low 27°.

Pressure30.47 inHg

Wind3.3 mph N

Humidity38%

Visibility—

Dew point19°

Wed, 2858° / 32°

58 °

Darby, Wednesday, 28 October

Clear. High 58°, low 32°.

Pressure30.21 inHg

Wind3.7 mph S

Humidity20%

Visibility—

Dew point9°

Thu, 2960° / 34°

60 °

Darby, Thursday, 29 October

Clear. High 60°, low 34°.

Pressure29.94 inHg

Wind3.3 mph NE

Humidity23%

Visibility—

Dew point15°

Fri, 3062° / 36°

62 °

Darby, Friday, 30 October

Partly cloudy. High 62°, low 36°.

Pressure29.85 inHg

Wind3.6 mph S

Humidity25%

Visibility—

Dew point17°

Sat, 3159° / 38°

59 °

Darby, Saturday, 31 October

Overcast. High 59°, low 38°.

Pressure29.80 inHg

Wind3.3 mph S

Humidity44%

Visibility—

Dew point30°

Sun, 0152° / 40°

0.25

52 °

Darby, Sunday, 1 November

Rain. High 52°, low 40°.

Pressure30.06 inHg

Wind5.3 mph SW

Humidity79%

Visibility—

Dew point41°

Mon, 0259° / 37°

59 °

Darby, Monday, 2 November

Overcast. High 59°, low 37°.

Pressure30.33 inHg

Wind4.7 mph SW

Humidity48%

Visibility—

Dew point31°

Tue, 0364° / 42°

64 °

Darby, Tuesday, 3 November

Overcast. High 64°, low 42°.

Pressure30.09 inHg

Wind4.3 mph S

Humidity49%

Visibility—

Dew point36°

Wed, 0461° / 43°

61 °

Darby, Wednesday, 4 November

Overcast. High 61°, low 43°.

Pressure29.65 inHg

Wind3.8 mph SE

Humidity46%

Visibility—

Dew point33°

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.