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As of 11:30 MDT

Weather in Sourdough, MT

38°Current weather

Sourdough, Thursday, 29 October, 11:30

Clear. Feels like 38°. High 50°, low 28°.

Pressure30.09 inHg
Wind0 mph N
Humidity65%
Visibility6.2 mi
Dew point27°
Fri, 3051° / 31°0Overcast
51 °Overcast

Sourdough, Friday, 30 October

Overcast. High 51°, low 31°.

Pressure30.06 inHg
Wind2.1 mph E
Humidity65%
Visibility6.2 mi
Dew point31°
Sat, 3153° / 32°0.03Light rain
53 °Light rain

Sourdough, Saturday, 31 October

Light rain. High 53°, low 32°.

Pressure29.97 inHg
Wind2 mph S
Humidity63%
Visibility6.2 mi
Dew point36°
Sun, 0150° / 35°0.24Rain
50 °Rain

Sourdough, Sunday, 1 November

Rain. High 50°, low 35°.

Pressure29.94 inHg
Wind3.8 mph NE
Humidity76%
Visibility6.2 mi
Dew point40°
Mon, 0242° / 34°0.3Light rain
42 °Light rain

Sourdough, Monday, 2 November

Light rain. High 42°, low 34°.

Pressure30.21 inHg
Wind6.8 mph NW
Humidity76%
Visibility—
Dew point33°
Tue, 0355° / 30°0Partly cloudy
55 °Partly cloudy

Sourdough, Tuesday, 3 November

Partly cloudy. High 55°, low 30°.

Pressure30.27 inHg
Wind6.2 mph S
Humidity57%
Visibility—
Dew point29°
Wed, 0454° / 34°0Clear
54 °Clear

Sourdough, Wednesday, 4 November

Clear. High 54°, low 34°.

Pressure30.09 inHg
Wind7.5 mph NE
Humidity40%
Visibility—
Dew point23°
Thu, 0548° / 31°0Mostly clear
48 °Mostly clear

Sourdough, Thursday, 5 November

Mostly clear. High 48°, low 31°.

Pressure29.97 inHg
Wind6.1 mph SE
Humidity52%
Visibility—
Dew point24°
Fri, 0656° / 33°0Mostly clear
56 °Mostly clear

Sourdough, Friday, 6 November

Mostly clear. High 56°, low 33°.

Pressure29.83 inHg
Wind8.3 mph SW
Humidity37%
Visibility—
Dew point23°
Sat, 0755° / 36°0Partly cloudy
55 °Partly cloudy

Sourdough, Saturday, 7 November

Partly cloudy. High 55°, low 36°.

Pressure30.06 inHg
Wind14.5 mph W
Humidity39%
Visibility—
Dew point25°
Sun, 0858° / 37°0Overcast
58 °Overcast

Sourdough, Sunday, 8 November

Overcast. High 58°, low 37°.

Pressure30.00 inHg
Wind14.1 mph SW
Humidity32%
Visibility—
Dew point21°
Mon, 0956° / 43°0Overcast
56 °Overcast

Sourdough, Monday, 9 November

Overcast. High 56°, low 43°.

Pressure30.06 inHg
Wind19.2 mph W
Humidity45%
Visibility—
Dew point31°
Tue, 1055° / 40°0Overcast
55 °Overcast

Sourdough, Tuesday, 10 November

Overcast. High 55°, low 40°.

Pressure29.97 inHg
Wind7.7 mph SE
Humidity46%
Visibility—
Dew point27°
Wed, 1159° / 43°0Overcast
59 °Overcast

Sourdough, Wednesday, 11 November

Overcast. High 59°, low 43°.

Pressure29.50 inHg
Wind11.4 mph SW
Humidity40%
Visibility—
Dew point29°
Thu, 1250° / 37°0Light snow
50 °Light snow

Sourdough, Thursday, 12 November

Light snow. High 50°, low 37°.

Pressure29.26 inHg
Wind17.3 mph W
Humidity51%
Visibility—
Dew point28°
Fri, 1345° / 33°0Overcast
45 °Overcast

Sourdough, Friday, 13 November

Overcast. High 45°, low 33°.

Pressure29.59 inHg
Wind27.5 mph W
Humidity47%
Visibility—
Dew point21°

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.