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As of 22:29 MST

Weather in Sourdough, MT

33°Current weather

Sourdough, Tuesday, 3 November, 22:29

Clear. Feels like 27°. High 52°, low 30°.

Pressure30.03 inHg
Wind6.9 mph W
Humidity86%
Visibility6.2 mi
Dew point30°
Wed, 0453° / 34°0Clear
53 °Clear

Sourdough, Wednesday, 4 November

Clear. High 53°, low 34°.

Pressure29.97 inHg
Wind0.4 mph NE
Humidity45%
Visibility6.2 mi
Dew point29°
Thu, 0557° / 33°0Mostly clear
57 °Mostly clear

Sourdough, Thursday, 5 November

Mostly clear. High 57°, low 33°.

Pressure29.97 inHg
Wind6.5 mph SW
Humidity42%
Visibility6.2 mi
Dew point31°
Fri, 0654° / 31°0Clear
54 °Clear

Sourdough, Friday, 6 November

Clear. High 54°, low 31°.

Pressure30.15 inHg
Wind15.2 mph SW
Humidity44%
Visibility6.2 mi
Dew point25°
Sat, 0758° / 38°0.01Light rain
58 °Light rain

Sourdough, Saturday, 7 November

Light rain. High 58°, low 38°.

Pressure30.15 inHg
Wind3.2 mph SE
Humidity47%
Visibility6.2 mi
Dew point34°
Sun, 0862° / 37°0Overcast
62 °Overcast

Sourdough, Sunday, 8 November

Overcast. High 62°, low 37°.

Pressure29.97 inHg
Wind15.7 mph SW
Humidity34%
Visibility—
Dew point28°
Mon, 0957° / 36°0Overcast
57 °Overcast

Sourdough, Monday, 9 November

Overcast. High 57°, low 36°.

Pressure30.09 inHg
Wind8.5 mph E
Humidity47%
Visibility—
Dew point29°
Tue, 1059° / 37°0Overcast
59 °Overcast

Sourdough, Tuesday, 10 November

Overcast. High 59°, low 37°.

Pressure29.97 inHg
Wind13.4 mph W
Humidity44%
Visibility—
Dew point28°
Wed, 1160° / 37°0Overcast
60 °Overcast

Sourdough, Wednesday, 11 November

Overcast. High 60°, low 37°.

Pressure30.00 inHg
Wind10.3 mph SW
Humidity37%
Visibility—
Dew point25°
Thu, 1260° / 37°0Partly cloudy
60 °Partly cloudy

Sourdough, Thursday, 12 November

Partly cloudy. High 60°, low 37°.

Pressure29.83 inHg
Wind11 mph SW
Humidity29%
Visibility—
Dew point19°
Fri, 1361° / 36°0Clear
61 °Clear

Sourdough, Friday, 13 November

Clear. High 61°, low 36°.

Pressure29.83 inHg
Wind7.7 mph SW
Humidity29%
Visibility—
Dew point19°
Sat, 1460° / 40°0Clear
60 °Clear

Sourdough, Saturday, 14 November

Clear. High 60°, low 40°.

Pressure29.80 inHg
Wind8.6 mph SW
Humidity35%
Visibility—
Dew point25°
Sun, 1561° / 43°0.04Light rain
61 °Light rain

Sourdough, Sunday, 15 November

Light rain. High 61°, low 43°.

Pressure29.56 inHg
Wind13.8 mph SW
Humidity31%
Visibility—
Dew point26°
Mon, 1643° / 34°0.58Snow
43 °Snow

Sourdough, Monday, 16 November

Snow. High 43°, low 34°.

Pressure29.91 inHg
Wind11.5 mph N
Humidity98%
Visibility—
Dew point36°
Tue, 1739° / 26°0.07Light snow
39 °Light snow

Sourdough, Tuesday, 17 November

Light snow. High 39°, low 26°.

Pressure30.30 inHg
Wind12.5 mph SW
Humidity76%
Visibility—
Dew point29°
Wed, 1843° / 25°0Overcast
43 °Overcast

Sourdough, Wednesday, 18 November

Overcast. High 43°, low 25°.

Pressure30.18 inHg
Wind8.7 mph SW
Humidity53%
Visibility—
Dew point20°

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.