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As of 06:40 MST

Weather in Sourdough, MT

39°Current weather

Sourdough, Monday, 2 November, 06:40

Overcast. Feels like 28°. High 44°, low 32°.

Pressure30.09 inHg
Wind21.9 mph W
Humidity82%
Visibility6.2 mi
Dew point34°
Tue, 0353° / 27°0Clear
53 °Clear

Sourdough, Tuesday, 3 November

Clear. High 53°, low 27°.

Pressure30.12 inHg
Wind6 mph S
Humidity51%
Visibility6.2 mi
Dew point26°
Wed, 0453° / 28°0Mostly clear
53 °Mostly clear

Sourdough, Wednesday, 4 November

Mostly clear. High 53°, low 28°.

Pressure29.97 inHg
Wind1.9 mph NW
Humidity43%
Visibility6.2 mi
Dew point23°
Thu, 0556° / 30°0Clear
56 °Clear

Sourdough, Thursday, 5 November

Clear. High 56°, low 30°.

Pressure29.91 inHg
Wind12.1 mph SW
Humidity39%
Visibility6.2 mi
Dew point27°
Fri, 0654° / 29°0Mostly clear
54 °Mostly clear

Sourdough, Friday, 6 November

Mostly clear. High 54°, low 29°.

Pressure30.03 inHg
Wind17.1 mph SW
Humidity48%
Visibility—
Dew point27°
Sat, 0749° / 33°0Clear
49 °Clear

Sourdough, Saturday, 7 November

Clear. High 49°, low 33°.

Pressure30.24 inHg
Wind6.6 mph N
Humidity52%
Visibility—
Dew point27°
Sun, 0860° / 34°0Overcast
60 °Overcast

Sourdough, Sunday, 8 November

Overcast. High 60°, low 34°.

Pressure29.88 inHg
Wind13.5 mph SW
Humidity31%
Visibility—
Dew point23°
Mon, 0951° / 38°0Partly cloudy
51 °Partly cloudy

Sourdough, Monday, 9 November

Partly cloudy. High 51°, low 38°.

Pressure30.06 inHg
Wind8 mph SE
Humidity56%
Visibility—
Dew point31°
Tue, 1059° / 39°0Overcast
59 °Overcast

Sourdough, Tuesday, 10 November

Overcast. High 59°, low 39°.

Pressure29.94 inHg
Wind7.6 mph E
Humidity34%
Visibility—
Dew point25°
Wed, 1146° / 35°0Overcast
46 °Overcast

Sourdough, Wednesday, 11 November

Overcast. High 46°, low 35°.

Pressure30.18 inHg
Wind6.1 mph SE
Humidity49%
Visibility—
Dew point25°
Thu, 1257° / 35°0Overcast
57 °Overcast

Sourdough, Thursday, 12 November

Overcast. High 57°, low 35°.

Pressure29.97 inHg
Wind7.2 mph S
Humidity48%
Visibility—
Dew point28°
Fri, 1351° / 42°0Mostly clear
51 °Mostly clear

Sourdough, Friday, 13 November

Mostly clear. High 51°, low 42°.

Pressure29.85 inHg
Wind31.4 mph W
Humidity38%
Visibility—
Dew point25°
Sat, 1450° / 33°0Clear
50 °Clear

Sourdough, Saturday, 14 November

Clear. High 50°, low 33°.

Pressure30.18 inHg
Wind18.5 mph W
Humidity30%
Visibility—
Dew point15°
Sun, 1552° / 30°0Partly cloudy
52 °Partly cloudy

Sourdough, Sunday, 15 November

Partly cloudy. High 52°, low 30°.

Pressure30.12 inHg
Wind9.7 mph SE
Humidity32%
Visibility—
Dew point14°
Mon, 1656° / 38°0Overcast
56 °Overcast

Sourdough, Monday, 16 November

Overcast. High 56°, low 38°.

Pressure29.74 inHg
Wind7.1 mph N
Humidity30%
Visibility—
Dew point19°
Tue, 1750° / 33°0Mostly clear
50 °Mostly clear

Sourdough, Tuesday, 17 November

Mostly clear. High 50°, low 33°.

Pressure30.15 inHg
Wind13 mph SW
Humidity37%
Visibility—
Dew point18°

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.