As of 19:44 MDT

Weather in Sourdough, MT

35°

Sourdough, Sunday, 25 October, 19:44

Clear. Feels like 29°. High 43°, low 25°.

Pressure30.36 inHg

Wind8.1 mph E

Humidity70%

Visibility6.2 mi

Dew point27°

See detailed hourly forecast

Mon, 2648° / 24°

48 °

Sourdough, Monday, 26 October

Mostly clear. High 48°, low 24°.

Pressure30.18 inHg

Wind2.6 mph SE

Humidity69%

Visibility6.2 mi

Dew point28°

Tue, 2748° / 31°

48 °

Sourdough, Tuesday, 27 October

Light rain. High 48°, low 31°.

Pressure29.83 inHg

Wind16.2 mph SW

Humidity51%

Visibility6.2 mi

Dew point24°

Wed, 2850° / 29°

50 °

Sourdough, Wednesday, 28 October

Clear. High 50°, low 29°.

Pressure29.94 inHg

Wind12.5 mph SW

Humidity52%

Visibility6.2 mi

Dew point24°

Thu, 2950° / 30°

50 °

Sourdough, Thursday, 29 October

Partly cloudy. High 50°, low 30°.

Pressure30.00 inHg

Wind3.7 mph SE

Humidity52%

Visibility6.2 mi

Dew point26°

Fri, 3041° / 31°

0.03

41 °

Sourdough, Friday, 30 October

Light rain. High 41°, low 31°.

Pressure30.06 inHg

Wind7.8 mph N

Humidity82%

Visibility—

Dew point30°

Sat, 3154° / 29°

54 °

Sourdough, Saturday, 31 October

Overcast. High 54°, low 29°.

Pressure29.94 inHg

Wind6 mph E

Humidity64%

Visibility—

Dew point31°

Sun, 0158° / 38°

0.06

58 °

Sourdough, Sunday, 1 November

Light rain. High 58°, low 38°.

Pressure29.62 inHg

Wind20 mph W

Humidity47%

Visibility—

Dew point31°

Mon, 0249° / 33°

49 °

Sourdough, Monday, 2 November

Clear. High 49°, low 33°.

Pressure29.97 inHg

Wind17.1 mph W

Humidity35%

Visibility—

Dew point18°

Tue, 0352° / 30°

52 °

Sourdough, Tuesday, 3 November

Mostly clear. High 52°, low 30°.

Pressure30.00 inHg

Wind6.9 mph SW

Humidity36%

Visibility—

Dew point17°

Wed, 0462° / 36°

62 °

Sourdough, Wednesday, 4 November

Overcast. High 62°, low 36°.

Pressure30.00 inHg

Wind10.9 mph W

Humidity50%

Visibility—

Dew point35°

Thu, 0564° / 45°

64 °

Sourdough, Thursday, 5 November

Overcast. High 64°, low 45°.

Pressure29.88 inHg

Wind6.1 mph SW

Humidity50%

Visibility—

Dew point37°

Fri, 0662° / 47°

0.04

62 °

Sourdough, Friday, 6 November

Light rain. High 62°, low 47°.

Pressure29.62 inHg

Wind16.3 mph W

Humidity42%

Visibility—

Dew point36°

Sat, 0758° / 41°

58 °

Sourdough, Saturday, 7 November

Overcast. High 58°, low 41°.

Pressure29.91 inHg

Wind15.7 mph W

Humidity37%

Visibility—

Dew point28°

Sun, 0860° / 39°

60 °

Sourdough, Sunday, 8 November

Overcast. High 60°, low 39°.

Pressure30.00 inHg

Wind8 mph SW

Humidity38%

Visibility—

Dew point26°

Mon, 0959° / 42°

59 °

Sourdough, Monday, 9 November

Overcast. High 59°, low 42°.

Pressure29.88 inHg

Wind7 mph E

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 Sourdough, 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 Sourdough, 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.