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As of 01:47 MDT

Weather in Sourdough, MT

39°Current weather

Sourdough, Wednesday, 28 October, 01:47

Clear. Feels like 31°. High 51°, low 31°.

Pressure29.88 inHg
Wind12.7 mph W
Humidity66%
Visibility6.2 mi
Dew point29°
Thu, 2951° / 31°0Mostly clear
51 °Mostly clear

Sourdough, Thursday, 29 October

Mostly clear. High 51°, low 31°.

Pressure30.06 inHg
Wind3.1 mph S
Humidity55%
Visibility6.2 mi
Dew point26°
Fri, 3045° / 31°0Overcast
45 °Overcast

Sourdough, Friday, 30 October

Overcast. High 45°, low 31°.

Pressure30.12 inHg
Wind3.2 mph SE
Humidity72%
Visibility6.2 mi
Dew point30°
Sat, 3153° / 31°0Overcast
53 °Overcast

Sourdough, Saturday, 31 October

Overcast. High 53°, low 31°.

Pressure30.00 inHg
Wind0.8 mph S
Humidity64%
Visibility6.2 mi
Dew point35°
Sun, 0143° / 37°0.29Rain
43 °Rain

Sourdough, Sunday, 1 November

Rain. High 43°, low 37°.

Pressure29.83 inHg
Wind8.1 mph NW
Humidity92%
Visibility—
Dew point39°
Mon, 0246° / 31°0Clear
46 °Clear

Sourdough, Monday, 2 November

Clear. High 46°, low 31°.

Pressure30.30 inHg
Wind9.4 mph W
Humidity52%
Visibility—
Dew point25°
Tue, 0348° / 26°0Mostly clear
48 °Mostly clear

Sourdough, Tuesday, 3 November

Mostly clear. High 48°, low 26°.

Pressure30.12 inHg
Wind4.1 mph SW
Humidity35%
Visibility—
Dew point14°
Wed, 0447° / 27°0Mostly clear
47 °Mostly clear

Sourdough, Wednesday, 4 November

Mostly clear. High 47°, low 27°.

Pressure30.12 inHg
Wind4.3 mph SE
Humidity37%
Visibility—
Dew point15°
Thu, 0550° / 28°0Mostly clear
50 °Mostly clear

Sourdough, Thursday, 5 November

Mostly clear. High 50°, low 28°.

Pressure30.12 inHg
Wind4.5 mph SE
Humidity35%
Visibility—
Dew point15°
Fri, 0649° / 30°0Overcast
49 °Overcast

Sourdough, Friday, 6 November

Overcast. High 49°, low 30°.

Pressure30.15 inHg
Wind5.1 mph SE
Humidity46%
Visibility—
Dew point21°
Sat, 0751° / 30°0Mostly clear
51 °Mostly clear

Sourdough, Saturday, 7 November

Mostly clear. High 51°, low 30°.

Pressure29.94 inHg
Wind5.6 mph S
Humidity40%
Visibility—
Dew point20°
Sun, 0861° / 41°0Overcast
61 °Overcast

Sourdough, Sunday, 8 November

Overcast. High 61°, low 41°.

Pressure29.68 inHg
Wind16 mph W
Humidity46%
Visibility—
Dew point33°
Mon, 0941° / 26°0.47Snow
41 °Snow

Sourdough, Monday, 9 November

Snow. High 41°, low 26°.

Pressure30.00 inHg
Wind13.8 mph N
Humidity92%
Visibility—
Dew point30°
Tue, 1042° / 22°0Partly cloudy
42 °Partly cloudy

Sourdough, Tuesday, 10 November

Partly cloudy. High 42°, low 22°.

Pressure30.33 inHg
Wind10.2 mph SW
Humidity79%
Visibility—
Dew point28°
Wed, 1150° / 29°0Mostly clear
50 °Mostly clear

Sourdough, Wednesday, 11 November

Mostly clear. High 50°, low 29°.

Pressure30.24 inHg
Wind8.8 mph SW
Humidity51%
Visibility—
Dew point25°
Thu, 1249° / 36°0Overcast
49 °Overcast

Sourdough, Thursday, 12 November

Overcast. High 49°, low 36°.

Pressure30.06 inHg
Wind13.8 mph SW
Humidity44%
Visibility—
Dew point26°

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.