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As of 09:45 MDT

Weather in Sourdough, MT

41°Current weather

Sourdough, Wednesday, 28 October, 09:45

Clear. Feels like 33°. High 51°, low 33°.

Pressure30.00 inHg
Wind16.1 mph W
Humidity54%
Visibility6.2 mi
Dew point27°
Thu, 2953° / 29°0Clear
53 °Clear

Sourdough, Thursday, 29 October

Clear. High 53°, low 29°.

Pressure30.06 inHg
Wind3.1 mph S
Humidity54%
Visibility6.2 mi
Dew point26°
Fri, 3046° / 32°0Light snow
46 °Light snow

Sourdough, Friday, 30 October

Light snow. High 46°, low 32°.

Pressure30.09 inHg
Wind2.9 mph SE
Humidity70%
Visibility6.2 mi
Dew point31°
Sat, 3156° / 32°0Clear
56 °Clear

Sourdough, Saturday, 31 October

Clear. High 56°, low 32°.

Pressure30.00 inHg
Wind0.9 mph S
Humidity58%
Visibility6.2 mi
Dew point35°
Sun, 0144° / 37°0.27Light rain
44 °Light rain

Sourdough, Sunday, 1 November

Light rain. High 44°, low 37°.

Pressure29.77 inHg
Wind9.9 mph N
Humidity95%
Visibility—
Dew point40°
Mon, 0248° / 32°0.04Light rain
48 °Light rain

Sourdough, Monday, 2 November

Light rain. High 48°, low 32°.

Pressure30.27 inHg
Wind11.5 mph N
Humidity67%
Visibility—
Dew point31°
Tue, 0353° / 29°0Overcast
53 °Overcast

Sourdough, Tuesday, 3 November

Overcast. High 53°, low 29°.

Pressure30.21 inHg
Wind9.3 mph SW
Humidity35%
Visibility—
Dew point17°
Wed, 0451° / 37°0Overcast
51 °Overcast

Sourdough, Wednesday, 4 November

Overcast. High 51°, low 37°.

Pressure30.03 inHg
Wind6.4 mph SE
Humidity34%
Visibility—
Dew point20°
Thu, 0551° / 33°0Overcast
51 °Overcast

Sourdough, Thursday, 5 November

Overcast. High 51°, low 33°.

Pressure29.85 inHg
Wind5.8 mph NE
Humidity41%
Visibility—
Dew point22°
Fri, 0649° / 34°0Overcast
49 °Overcast

Sourdough, Friday, 6 November

Overcast. High 49°, low 34°.

Pressure30.03 inHg
Wind7.5 mph SE
Humidity56%
Visibility—
Dew point28°
Sat, 0752° / 31°0Clear
52 °Clear

Sourdough, Saturday, 7 November

Clear. High 52°, low 31°.

Pressure29.94 inHg
Wind7.8 mph SE
Humidity47%
Visibility—
Dew point25°
Sun, 0847° / 39°0.01Light rain
47 °Light rain

Sourdough, Sunday, 8 November

Light rain. High 47°, low 39°.

Pressure29.85 inHg
Wind15.2 mph W
Humidity75%
Visibility—
Dew point36°
Mon, 0948° / 33°0Mostly clear
48 °Mostly clear

Sourdough, Monday, 9 November

Mostly clear. High 48°, low 33°.

Pressure30.24 inHg
Wind7.6 mph E
Humidity54%
Visibility—
Dew point28°
Tue, 1047° / 29°0Clear
47 °Clear

Sourdough, Tuesday, 10 November

Clear. High 47°, low 29°.

Pressure30.12 inHg
Wind5 mph S
Humidity45%
Visibility—
Dew point20°
Wed, 1158° / 39°0Overcast
58 °Overcast

Sourdough, Wednesday, 11 November

Overcast. High 58°, low 39°.

Pressure29.85 inHg
Wind17 mph W
Humidity33%
Visibility—
Dew point24°
Thu, 1257° / 40°0Partly cloudy
57 °Partly cloudy

Sourdough, Thursday, 12 November

Partly cloudy. High 57°, low 40°.

Pressure29.68 inHg
Wind10.4 mph SW
Humidity40%
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.