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As of 11:03 MST

Weather in Sourdough, MT

44°Current weather

Sourdough, Wednesday, 4 November, 11:03

Clear. Feels like 39°. High 50°, low 29°.

Pressure30.03 inHg
Wind10.4 mph W
Humidity66%
Visibility6.2 mi
Dew point33°
Thu, 0556° / 33°0Mostly clear
56 °Mostly clear

Sourdough, Thursday, 5 November

Mostly clear. High 56°, low 33°.

Pressure29.97 inHg
Wind8 mph SW
Humidity40%
Visibility6.2 mi
Dew point30°
Fri, 0654° / 32°0Partly cloudy
54 °Partly cloudy

Sourdough, Friday, 6 November

Partly cloudy. High 54°, low 32°.

Pressure30.12 inHg
Wind15.9 mph SW
Humidity44%
Visibility6.2 mi
Dew point27°
Sat, 0758° / 38°0Overcast
58 °Overcast

Sourdough, Saturday, 7 November

Overcast. High 58°, low 38°.

Pressure30.15 inHg
Wind7.4 mph SW
Humidity41%
Visibility6.2 mi
Dew point31°
Sun, 0862° / 36°0Overcast
62 °Overcast

Sourdough, Sunday, 8 November

Overcast. High 62°, low 36°.

Pressure29.97 inHg
Wind15.5 mph SW
Humidity36%
Visibility—
Dew point28°
Mon, 0952° / 37°0Overcast
52 °Overcast

Sourdough, Monday, 9 November

Overcast. High 52°, low 37°.

Pressure30.18 inHg
Wind6.1 mph N
Humidity53%
Visibility—
Dew point31°
Tue, 1059° / 37°0Overcast
59 °Overcast

Sourdough, Tuesday, 10 November

Overcast. High 59°, low 37°.

Pressure29.97 inHg
Wind4.6 mph W
Humidity43%
Visibility—
Dew point28°
Wed, 1152° / 36°0Clear
52 °Clear

Sourdough, Wednesday, 11 November

Clear. High 52°, low 36°.

Pressure30.18 inHg
Wind5.1 mph SE
Humidity47%
Visibility—
Dew point26°
Thu, 1256° / 34°0Clear
56 °Clear

Sourdough, Thursday, 12 November

Clear. High 56°, low 34°.

Pressure30.03 inHg
Wind7.9 mph S
Humidity31%
Visibility—
Dew point17°
Fri, 1356° / 33°0Clear
56 °Clear

Sourdough, Friday, 13 November

Clear. High 56°, low 33°.

Pressure29.97 inHg
Wind6.8 mph SW
Humidity27%
Visibility—
Dew point14°
Sat, 1456° / 32°0Clear
56 °Clear

Sourdough, Saturday, 14 November

Clear. High 56°, low 32°.

Pressure30.03 inHg
Wind5.7 mph SW
Humidity26%
Visibility—
Dew point13°
Sun, 1559° / 33°0Clear
59 °Clear

Sourdough, Sunday, 15 November

Clear. High 59°, low 33°.

Pressure29.85 inHg
Wind6.4 mph S
Humidity18%
Visibility—
Dew point6°
Mon, 1655° / 32°0Clear
55 °Clear

Sourdough, Monday, 16 November

Clear. High 55°, low 32°.

Pressure29.71 inHg
Wind4.7 mph W
Humidity22%
Visibility—
Dew point10°
Tue, 1744° / 29°0Overcast
44 °Overcast

Sourdough, Tuesday, 17 November

Overcast. High 44°, low 29°.

Pressure30.00 inHg
Wind11.3 mph NW
Humidity61%
Visibility—
Dew point27°
Wed, 1848° / 26°0Overcast
48 °Overcast

Sourdough, Wednesday, 18 November

Overcast. High 48°, low 26°.

Pressure29.97 inHg
Wind12.6 mph SW
Humidity35%
Visibility—
Dew point14°
Thu, 1940° / 25°0.22Snow
40 °Snow

Sourdough, Thursday, 19 November

Snow. High 40°, low 25°.

Pressure30.12 inHg
Wind9.2 mph SW
Humidity68%
Visibility—
Dew point27°

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.