EN
English Español

As of 21:03 MDT

Weather in Sourdough, MT

47°Current weather

Sourdough, Wednesday, 21 October, 21:03

Clear. Feels like 46°. High 66°, low 36°.

Pressure30.00 inHg
Wind4.6 mph W
Humidity71%
Visibility6.2 mi
Dew point38°
Thu, 2268° / 40°0Clear
68 °Clear

Sourdough, Thursday, 22 October

Clear. High 68°, low 40°.

Pressure29.91 inHg
Wind3.9 mph SE
Humidity46%
Visibility6.2 mi
Dew point40°
Fri, 2355° / 33°1.1Snow
55 °Snow

Sourdough, Friday, 23 October

Snow. High 55°, low 33°.

Pressure29.62 inHg
Wind3 mph SW
Humidity64%
Visibility6.2 mi
Dew point46°
Sat, 2442° / 21°0Clear
42 °Clear

Sourdough, Saturday, 24 October

Clear. High 42°, low 21°.

Pressure30.45 inHg
Wind4 mph S
Humidity76%
Visibility6.2 mi
Dew point22°
Sun, 2541° / 26°0Clear
41 °Clear

Sourdough, Sunday, 25 October

Clear. High 41°, low 26°.

Pressure30.39 inHg
Wind7 mph NE
Humidity69%
Visibility6.2 mi
Dew point22°
Mon, 2643° / 26°0Clear
43 °Clear

Sourdough, Monday, 26 October

Clear. High 43°, low 26°.

Pressure30.47 inHg
Wind2.8 mph S
Humidity74%
Visibility—
Dew point29°
Tue, 2749° / 28°0Overcast
49 °Overcast

Sourdough, Tuesday, 27 October

Overcast. High 49°, low 28°.

Pressure30.33 inHg
Wind8.8 mph NE
Humidity62%
Visibility—
Dew point27°
Wed, 2851° / 24°0Clear
51 °Clear

Sourdough, Wednesday, 28 October

Clear. High 51°, low 24°.

Pressure30.30 inHg
Wind7.9 mph S
Humidity24%
Visibility—
Dew point6°
Thu, 2965° / 37°0Overcast
65 °Overcast

Sourdough, Thursday, 29 October

Overcast. High 65°, low 37°.

Pressure29.77 inHg
Wind14.9 mph W
Humidity17%
Visibility—
Dew point13°
Fri, 3062° / 42°0Clear
62 °Clear

Sourdough, Friday, 30 October

Clear. High 62°, low 42°.

Pressure29.56 inHg
Wind15.3 mph W
Humidity31%
Visibility—
Dew point24°
Sat, 3148° / 37°0.01Light snow
48 °Light snow

Sourdough, Saturday, 31 October

Light snow. High 48°, low 37°.

Pressure29.68 inHg
Wind16.5 mph W
Humidity34%
Visibility—
Dew point18°
Sun, 0147° / 30°0Overcast
47 °Overcast

Sourdough, Sunday, 1 November

Overcast. High 47°, low 30°.

Pressure30.15 inHg
Wind6.8 mph E
Humidity45%
Visibility—
Dew point19°
Mon, 0258° / 28°0Partly cloudy
58 °Partly cloudy

Sourdough, Monday, 2 November

Partly cloudy. High 58°, low 28°.

Pressure30.18 inHg
Wind6.6 mph SW
Humidity26%
Visibility—
Dew point12°
Tue, 0365° / 37°0Clear
65 °Clear

Sourdough, Tuesday, 3 November

Clear. High 65°, low 37°.

Pressure29.94 inHg
Wind18.8 mph W
Humidity19%
Visibility—
Dew point14°
Wed, 0456° / 40°0.04Light rain
56 °Light rain

Sourdough, Wednesday, 4 November

Light rain. High 56°, low 40°.

Pressure29.80 inHg
Wind17.9 mph SW
Humidity48%
Visibility—
Dew point33°
Thu, 0556° / 35°0.02Light rain
56 °Light rain

Sourdough, Thursday, 5 November

Light rain. High 56°, low 35°.

Pressure29.77 inHg
Wind23.9 mph W
Humidity59%
Visibility—
Dew point35°

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.