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As of 03:32 MDT

Weather in Sourdough, MT

28°Current weather

Sourdough, Thursday, 29 October, 03:32

Clear. Feels like 28°. High 53°, low 28°.

Pressure30.09 inHg
Wind0 mph N
Humidity74%
Visibility6.2 mi
Dew point21°
Fri, 3046° / 34°0.03Light rain
46 °Light rain

Sourdough, Friday, 30 October

Light rain. High 46°, low 34°.

Pressure30.09 inHg
Wind2.5 mph E
Humidity67%
Visibility6.2 mi
Dew point32°
Sat, 3153° / 32°0.05Light rain
53 °Light rain

Sourdough, Saturday, 31 October

Light rain. High 53°, low 32°.

Pressure29.97 inHg
Wind2.2 mph SE
Humidity61%
Visibility6.2 mi
Dew point36°
Sun, 0148° / 36°0.07Light rain
48 °Light rain

Sourdough, Sunday, 1 November

Light rain. High 48°, low 36°.

Pressure29.94 inHg
Wind4.4 mph NE
Humidity82%
Visibility6.2 mi
Dew point40°
Mon, 0252° / 35°0.03Light rain
52 °Light rain

Sourdough, Monday, 2 November

Light rain. High 52°, low 35°.

Pressure30.30 inHg
Wind7.7 mph SW
Humidity59%
Visibility—
Dew point33°
Tue, 0358° / 33°0Overcast
58 °Overcast

Sourdough, Tuesday, 3 November

Overcast. High 58°, low 33°.

Pressure30.15 inHg
Wind6.5 mph S
Humidity40%
Visibility—
Dew point24°
Wed, 0454° / 36°0Overcast
54 °Overcast

Sourdough, Wednesday, 4 November

Overcast. High 54°, low 36°.

Pressure30.00 inHg
Wind4.8 mph E
Humidity29%
Visibility—
Dew point17°
Thu, 0556° / 36°0Overcast
56 °Overcast

Sourdough, Thursday, 5 November

Overcast. High 56°, low 36°.

Pressure29.85 inHg
Wind8.1 mph W
Humidity45%
Visibility—
Dew point25°
Fri, 0657° / 37°0Clear
57 °Clear

Sourdough, Friday, 6 November

Clear. High 57°, low 37°.

Pressure29.94 inHg
Wind11.2 mph W
Humidity36%
Visibility—
Dew point24°
Sat, 0757° / 38°0Mostly clear
57 °Mostly clear

Sourdough, Saturday, 7 November

Mostly clear. High 57°, low 38°.

Pressure29.88 inHg
Wind14.3 mph SW
Humidity41%
Visibility—
Dew point26°
Sun, 0852° / 39°0Partly cloudy
52 °Partly cloudy

Sourdough, Sunday, 8 November

Partly cloudy. High 52°, low 39°.

Pressure29.97 inHg
Wind29.5 mph W
Humidity39%
Visibility—
Dew point26°
Mon, 0952° / 33°0Partly cloudy
52 °Partly cloudy

Sourdough, Monday, 9 November

Partly cloudy. High 52°, low 33°.

Pressure30.24 inHg
Wind17.1 mph W
Humidity21%
Visibility—
Dew point8°
Tue, 1057° / 40°0Overcast
57 °Overcast

Sourdough, Tuesday, 10 November

Overcast. High 57°, low 40°.

Pressure29.88 inHg
Wind18.5 mph W
Humidity32%
Visibility—
Dew point22°
Wed, 1158° / 40°0Overcast
58 °Overcast

Sourdough, Wednesday, 11 November

Overcast. High 58°, low 40°.

Pressure29.83 inHg
Wind11.3 mph W
Humidity36%
Visibility—
Dew point26°
Thu, 1258° / 35°0Clear
58 °Clear

Sourdough, Thursday, 12 November

Clear. High 58°, low 35°.

Pressure29.74 inHg
Wind5.7 mph SW
Humidity36%
Visibility—
Dew point21°
Fri, 1353° / 40°0Overcast
53 °Overcast

Sourdough, Friday, 13 November

Overcast. High 53°, low 40°.

Pressure29.50 inHg
Wind12 mph SW
Humidity44%
Visibility—
Dew point30°

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.