As of 05:21 MDT

Weather in Sourdough, MT

28°Current weather

Sourdough, Saturday, 24 October, 05:21

Clear. Feels like 16°. High 47°, low 27°.

Pressure30.36 inHg
Wind17.3 mph SW
Humidity79%
Visibility6.2 mi
Dew point23°
Sun, 2546° / 26°0Clear
46 °Clear

Sourdough, Sunday, 25 October

Clear. High 46°, low 26°.

Pressure30.36 inHg
Wind6.9 mph NE
Humidity56%
Visibility6.2 mi
Dew point20°
Mon, 2647° / 26°0Clear
47 °Clear

Sourdough, Monday, 26 October

Clear. High 47°, low 26°.

Pressure30.15 inHg
Wind1.6 mph SE
Humidity65%
Visibility6.2 mi
Dew point27°
Tue, 2746° / 34°0.08Light rain
46 °Light rain

Sourdough, Tuesday, 27 October

Light rain. High 46°, low 34°.

Pressure29.88 inHg
Wind13.2 mph SW
Humidity59%
Visibility6.2 mi
Dew point27°
Wed, 2850° / 34°0Clear
50 °Clear

Sourdough, Wednesday, 28 October

Clear. High 50°, low 34°.

Pressure29.97 inHg
Wind14.4 mph SW
Humidity51%
Visibility—
Dew point28°
Thu, 2950° / 33°0Overcast
50 °Overcast

Sourdough, Thursday, 29 October

Overcast. High 50°, low 33°.

Pressure29.85 inHg
Wind5.7 mph N
Humidity52%
Visibility—
Dew point28°
Fri, 3052° / 34°0Overcast
52 °Overcast

Sourdough, Friday, 30 October

Overcast. High 52°, low 34°.

Pressure29.97 inHg
Wind8.5 mph SE
Humidity47%
Visibility—
Dew point27°
Sat, 3157° / 36°0Overcast
57 °Overcast

Sourdough, Saturday, 31 October

Overcast. High 57°, low 36°.

Pressure29.94 inHg
Wind13.6 mph W
Humidity40%
Visibility—
Dew point26°
Sun, 0147° / 29°0Mostly clear
47 °Mostly clear

Sourdough, Sunday, 1 November

Mostly clear. High 47°, low 29°.

Pressure30.21 inHg
Wind14.7 mph NW
Humidity17%
Visibility—
Dew point2°
Mon, 0251° / 25°0Clear
51 °Clear

Sourdough, Monday, 2 November

Clear. High 51°, low 25°.

Pressure30.45 inHg
Wind6.4 mph W
Humidity16%
Visibility—
Dew point-1°
Tue, 0362° / 29°0Clear
62 °Clear

Sourdough, Tuesday, 3 November

Clear. High 62°, low 29°.

Pressure30.30 inHg
Wind7.5 mph SW
Humidity13%
Visibility—
Dew point-1°
Wed, 0443° / 30°0Overcast
43 °Overcast

Sourdough, Wednesday, 4 November

Overcast. High 43°, low 30°.

Pressure30.30 inHg
Wind10.7 mph SE
Humidity30%
Visibility—
Dew point13°
Thu, 0536° / 28°0Overcast
36 °Overcast

Sourdough, Thursday, 5 November

Overcast. High 36°, low 28°.

Pressure30.39 inHg
Wind8.6 mph E
Humidity64%
Visibility—
Dew point21°
Fri, 0647° / 22°0Overcast
47 °Overcast

Sourdough, Friday, 6 November

Overcast. High 47°, low 22°.

Pressure30.03 inHg
Wind7.3 mph SW
Humidity55%
Visibility—
Dew point21°
Sat, 0751° / 42°0.01Light rain
51 °Light rain

Sourdough, Saturday, 7 November

Light rain. High 51°, low 42°.

Pressure29.85 inHg
Wind35.4 mph W
Humidity46%
Visibility—
Dew point28°
Sun, 0856° / 34°0Overcast
56 °Overcast

Sourdough, Sunday, 8 November

Overcast. High 56°, low 34°.

Pressure30.12 inHg
Wind19 mph W
Humidity26%
Visibility—
Dew point16°

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.