As of 21:20 MST

Weather in Sourdough, MT

52°Current weather

Sourdough, Sunday, 8 November, 21:20

Clear. Feels like 49°. High 62°, low 41°.

Pressure29.97 inHg
Wind13.8 mph SW
Humidity42%
Visibility6.2 mi
Dew point30°
Mon, 0959° / 41°0Overcast
59 °Overcast

Sourdough, Monday, 9 November

Overcast. High 59°, low 41°.

Pressure30.06 inHg
Wind8.6 mph S
Humidity46%
Visibility6.2 mi
Dew point33°
Tue, 1057° / 40°0Partly cloudy
57 °Partly cloudy

Sourdough, Tuesday, 10 November

Partly cloudy. High 57°, low 40°.

Pressure30.06 inHg
Wind13.6 mph SW
Humidity38%
Visibility6.2 mi
Dew point29°
Wed, 1162° / 40°0Partly cloudy
62 °Partly cloudy

Sourdough, Wednesday, 11 November

Partly cloudy. High 62°, low 40°.

Pressure30.12 inHg
Wind14.2 mph SW
Humidity35%
Visibility6.2 mi
Dew point33°
Thu, 1262° / 38°0Partly cloudy
62 °Partly cloudy

Sourdough, Thursday, 12 November

Partly cloudy. High 62°, low 38°.

Pressure30.00 inHg
Wind5.5 mph S
Humidity39%
Visibility6.2 mi
Dew point29°
Fri, 1362° / 38°0Overcast
62 °Overcast

Sourdough, Friday, 13 November

Overcast. High 62°, low 38°.

Pressure29.77 inHg
Wind9.4 mph SW
Humidity42%
Visibility—
Dew point28°
Sat, 1461° / 42°0Partly cloudy
61 °Partly cloudy

Sourdough, Saturday, 14 November

Partly cloudy. High 61°, low 42°.

Pressure29.77 inHg
Wind14.3 mph SW
Humidity41%
Visibility—
Dew point29°
Sun, 1561° / 41°0Overcast
61 °Overcast

Sourdough, Sunday, 15 November

Overcast. High 61°, low 41°.

Pressure29.74 inHg
Wind11.4 mph SW
Humidity28%
Visibility—
Dew point22°
Mon, 1658° / 38°0.27Snow
58 °Snow

Sourdough, Monday, 16 November

Snow. High 58°, low 38°.

Pressure29.62 inHg
Wind15.1 mph W
Humidity40%
Visibility—
Dew point30°
Tue, 1742° / 29°0Mostly clear
42 °Mostly clear

Sourdough, Tuesday, 17 November

Mostly clear. High 42°, low 29°.

Pressure30.18 inHg
Wind19.7 mph W
Humidity35%
Visibility—
Dew point14°
Wed, 1841° / 25°0Clear
41 °Clear

Sourdough, Wednesday, 18 November

Clear. High 41°, low 25°.

Pressure30.42 inHg
Wind9.4 mph SW
Humidity35%
Visibility—
Dew point10°
Thu, 1933° / 23°0.16Snow
33 °Snow

Sourdough, Thursday, 19 November

Snow. High 33°, low 23°.

Pressure30.15 inHg
Wind9.5 mph N
Humidity43%
Visibility—
Dew point10°
Fri, 2031° / 17°0.1Snow
31 °Snow

Sourdough, Friday, 20 November

Snow. High 31°, low 17°.

Pressure30.33 inHg
Wind6 mph E
Humidity72%
Visibility—
Dew point19°
Sat, 2128° / 15°0Partly cloudy
28 °Partly cloudy

Sourdough, Saturday, 21 November

Partly cloudy. High 28°, low 15°.

Pressure30.12 inHg
Wind3.2 mph NW
Humidity77%
Visibility—
Dew point16°
Sun, 2239° / 26°0Overcast
39 °Overcast

Sourdough, Sunday, 22 November

Overcast. High 39°, low 26°.

Pressure29.65 inHg
Wind10.9 mph SW
Humidity88%
Visibility—
Dew point33°
Mon, 2327° / 23°0.09Light snow
27 °Light snow

Sourdough, Monday, 23 November

Light snow. High 27°, low 23°.

Pressure30.12 inHg
Wind5 mph SE
Humidity87%
Visibility—
Dew point22°

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.