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As of 06:47 MST

Weather in Sourdough, MT

34°Current weather

Sourdough, Tuesday, 3 November, 06:47

Clear. Feels like 23°. High 54°, low 31°.

Pressure30.24 inHg
Wind18.4 mph SW
Humidity74%
Visibility6.2 mi
Dew point27°
Wed, 0454° / 32°0Clear
54 °Clear

Sourdough, Wednesday, 4 November

Clear. High 54°, low 32°.

Pressure29.97 inHg
Wind0.4 mph NE
Humidity44%
Visibility6.2 mi
Dew point28°
Thu, 0556° / 31°0Overcast
56 °Overcast

Sourdough, Thursday, 5 November

Overcast. High 56°, low 31°.

Pressure29.97 inHg
Wind9.9 mph SW
Humidity40%
Visibility6.2 mi
Dew point29°
Fri, 0655° / 31°0Clear
55 °Clear

Sourdough, Friday, 6 November

Clear. High 55°, low 31°.

Pressure30.06 inHg
Wind18.3 mph SW
Humidity43%
Visibility6.2 mi
Dew point26°
Sat, 0760° / 36°0.05Light rain
60 °Light rain

Sourdough, Saturday, 7 November

Light rain. High 60°, low 36°.

Pressure30.12 inHg
Wind10.5 mph SW
Humidity48%
Visibility—
Dew point31°
Sun, 0862° / 39°0Overcast
62 °Overcast

Sourdough, Sunday, 8 November

Overcast. High 62°, low 39°.

Pressure29.85 inHg
Wind18.2 mph SW
Humidity38%
Visibility—
Dew point29°
Mon, 0954° / 39°0Mostly clear
54 °Mostly clear

Sourdough, Monday, 9 November

Mostly clear. High 54°, low 39°.

Pressure30.06 inHg
Wind7.2 mph SE
Humidity44%
Visibility—
Dew point25°
Tue, 1057° / 37°0Mostly clear
57 °Mostly clear

Sourdough, Tuesday, 10 November

Mostly clear. High 57°, low 37°.

Pressure30.06 inHg
Wind15.2 mph W
Humidity30%
Visibility—
Dew point22°
Wed, 1157° / 36°0Clear
57 °Clear

Sourdough, Wednesday, 11 November

Clear. High 57°, low 36°.

Pressure30.18 inHg
Wind7.4 mph S
Humidity38%
Visibility—
Dew point23°
Thu, 1261° / 37°0Clear
61 °Clear

Sourdough, Thursday, 12 November

Clear. High 61°, low 37°.

Pressure29.94 inHg
Wind7.6 mph S
Humidity25%
Visibility—
Dew point16°
Fri, 1358° / 38°0Overcast
58 °Overcast

Sourdough, Friday, 13 November

Overcast. High 58°, low 38°.

Pressure29.71 inHg
Wind7 mph S
Humidity30%
Visibility—
Dew point20°
Sat, 1458° / 40°0Overcast
58 °Overcast

Sourdough, Saturday, 14 November

Overcast. High 58°, low 40°.

Pressure29.35 inHg
Wind20 mph W
Humidity40%
Visibility—
Dew point31°
Sun, 1551° / 38°0.01Light rain
51 °Light rain

Sourdough, Sunday, 15 November

Light rain. High 51°, low 38°.

Pressure29.62 inHg
Wind19.4 mph W
Humidity38%
Visibility—
Dew point23°
Mon, 1648° / 32°0Partly cloudy
48 °Partly cloudy

Sourdough, Monday, 16 November

Partly cloudy. High 48°, low 32°.

Pressure29.77 inHg
Wind13.1 mph SW
Humidity40%
Visibility—
Dew point19°
Tue, 1740° / 33°0.32Snow
40 °Snow

Sourdough, Tuesday, 17 November

Snow. High 40°, low 33°.

Pressure29.65 inHg
Wind12.9 mph N
Humidity62%
Visibility—
Dew point28°
Wed, 1838° / 23°0.07Light snow
38 °Light snow

Sourdough, Wednesday, 18 November

Light snow. High 38°, low 23°.

Pressure30.00 inHg
Wind11 mph W
Humidity73%
Visibility—
Dew point28°

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.