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As of 21:20 MST

Weather in Sourdough, MT

47°Current weather

Sourdough, Thursday, 5 November, 21:20

Overcast. Feels like 41°. High 53°, low 30°.

Pressure30.12 inHg
Wind13.8 mph W
Humidity54%
Visibility6.2 mi
Dew point31°
Fri, 0654° / 28°0Clear
54 °Clear

Sourdough, Friday, 6 November

Clear. High 54°, low 28°.

Pressure30.12 inHg
Wind15.8 mph SW
Humidity44%
Visibility6.2 mi
Dew point26°
Sat, 0759° / 34°0Clear
59 °Clear

Sourdough, Saturday, 7 November

Clear. High 59°, low 34°.

Pressure30.12 inHg
Wind7.2 mph SW
Humidity40%
Visibility6.2 mi
Dew point32°
Sun, 0862° / 38°0Overcast
62 °Overcast

Sourdough, Sunday, 8 November

Overcast. High 62°, low 38°.

Pressure29.91 inHg
Wind14.8 mph SW
Humidity34%
Visibility6.2 mi
Dew point32°
Mon, 0953° / 38°0Overcast
53 °Overcast

Sourdough, Monday, 9 November

Overcast. High 53°, low 38°.

Pressure30.09 inHg
Wind1.3 mph SE
Humidity53%
Visibility6.2 mi
Dew point33°
Tue, 1057° / 36°0Overcast
57 °Overcast

Sourdough, Tuesday, 10 November

Overcast. High 57°, low 36°.

Pressure30.06 inHg
Wind10.4 mph SW
Humidity49%
Visibility—
Dew point31°
Wed, 1161° / 40°0Partly cloudy
61 °Partly cloudy

Sourdough, Wednesday, 11 November

Partly cloudy. High 61°, low 40°.

Pressure30.12 inHg
Wind8.3 mph SW
Humidity41%
Visibility—
Dew point30°
Thu, 1263° / 41°0Overcast
63 °Overcast

Sourdough, Thursday, 12 November

Overcast. High 63°, low 41°.

Pressure29.91 inHg
Wind8.4 mph SW
Humidity28%
Visibility—
Dew point22°
Fri, 1361° / 44°0Overcast
61 °Overcast

Sourdough, Friday, 13 November

Overcast. High 61°, low 44°.

Pressure29.83 inHg
Wind8.4 mph SW
Humidity29%
Visibility—
Dew point21°
Sat, 1458° / 43°0Overcast
58 °Overcast

Sourdough, Saturday, 14 November

Overcast. High 58°, low 43°.

Pressure29.68 inHg
Wind8.7 mph SW
Humidity30%
Visibility—
Dew point23°
Sun, 1544° / 31°0.02Light rain
44 °Light rain

Sourdough, Sunday, 15 November

Light rain. High 44°, low 31°.

Pressure29.94 inHg
Wind19.6 mph W
Humidity56%
Visibility—
Dew point27°
Mon, 1640° / 26°0Overcast
40 °Overcast

Sourdough, Monday, 16 November

Overcast. High 40°, low 26°.

Pressure30.09 inHg
Wind6 mph S
Humidity39%
Visibility—
Dew point11°
Tue, 1736° / 31°0.08Light snow
36 °Light snow

Sourdough, Tuesday, 17 November

Light snow. High 36°, low 31°.

Pressure29.68 inHg
Wind15.8 mph W
Humidity88%
Visibility—
Dew point30°
Wed, 1844° / 27°0Overcast
44 °Overcast

Sourdough, Wednesday, 18 November

Overcast. High 44°, low 27°.

Pressure30.03 inHg
Wind11 mph SW
Humidity46%
Visibility—
Dew point17°
Thu, 1945° / 29°0Partly cloudy
45 °Partly cloudy

Sourdough, Thursday, 19 November

Partly cloudy. High 45°, low 29°.

Pressure30.00 inHg
Wind20 mph SW
Humidity41%
Visibility—
Dew point18°
Fri, 2050° / 35°0Overcast
50 °Overcast

Sourdough, Friday, 20 November

Overcast. High 50°, low 35°.

Pressure30.06 inHg
Wind19.1 mph W
Humidity50%
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.