As of 19:08 MST

Weather in Sourdough, MT

40°

Sourdough, Sunday, 1 November, 19:08

Light rain. Feels like 37°. High 40°, low 35°.

Pressure29.80 inHg

Wind4.6 mph W

Humidity96%

Visibility3.0 mi

Dew point39°

See detailed hourly forecast

Mon, 0242° / 32°

0.07

42 °

Sourdough, Monday, 2 November

Light rain. High 42°, low 32°.

Pressure30.21 inHg

Wind4.3 mph NW

Humidity68%

Visibility5.8 mi

Dew point32°

Tue, 0351° / 29°

51 °

Sourdough, Tuesday, 3 November

Clear. High 51°, low 29°.

Pressure30.12 inHg

Wind4.1 mph S

Humidity52%

Visibility6.2 mi

Dew point26°

Wed, 0452° / 28°

52 °

Sourdough, Wednesday, 4 November

Partly cloudy. High 52°, low 28°.

Pressure30.00 inHg

Wind2.6 mph N

Humidity43%

Visibility6.2 mi

Dew point23°

Thu, 0556° / 31°

56 °

Sourdough, Thursday, 5 November

Mostly clear. High 56°, low 31°.

Pressure29.94 inHg

Wind4.9 mph SW

Humidity43%

Visibility6.2 mi

Dew point26°

Fri, 0653° / 29°

53 °

Sourdough, Friday, 6 November

Clear. High 53°, low 29°.

Pressure30.03 inHg

Wind17.2 mph SW

Humidity48%

Visibility—

Dew point27°

Sat, 0754° / 37°

54 °

Sourdough, Saturday, 7 November

Clear. High 54°, low 37°.

Pressure30.24 inHg

Wind14.1 mph NW

Humidity44%

Visibility—

Dew point23°

Sun, 0861° / 35°

61 °

Sourdough, Sunday, 8 November

Overcast. High 61°, low 35°.

Pressure30.06 inHg

Wind11.4 mph SW

Humidity24%

Visibility—

Dew point16°

Mon, 0958° / 40°

58 °

Sourdough, Monday, 9 November

Mostly clear. High 58°, low 40°.

Pressure30.15 inHg

Wind7.2 mph SW

Humidity27%

Visibility—

Dew point17°

Tue, 1062° / 45°

62 °

Sourdough, Tuesday, 10 November

Overcast. High 62°, low 45°.

Pressure30.12 inHg

Wind7 mph SW

Humidity31%

Visibility—

Dew point24°

Wed, 1163° / 41°

63 °

Sourdough, Wednesday, 11 November

Clear. High 63°, low 41°.

Pressure30.18 inHg

Wind6.6 mph S

Humidity31%

Visibility—

Dew point24°

Thu, 1265° / 39°

65 °

Sourdough, Thursday, 12 November

Overcast. High 65°, low 39°.

Pressure29.94 inHg

Wind7.7 mph SW

Humidity19%

Visibility—

Dew point12°

Fri, 1365° / 44°

65 °

Sourdough, Friday, 13 November

Clear. High 65°, low 44°.

Pressure29.68 inHg

Wind19.6 mph SW

Humidity21%

Visibility—

Dew point18°

Sat, 1458° / 41°

58 °

Sourdough, Saturday, 14 November

Overcast. High 58°, low 41°.

Pressure29.83 inHg

Wind11.4 mph SW

Humidity35%

Visibility—

Dew point25°

Sun, 1565° / 41°

65 °

Sourdough, Sunday, 15 November

Partly cloudy. High 65°, low 41°.

Pressure29.74 inHg

Wind18.1 mph SW

Humidity40%

Visibility—

Dew point31°

Mon, 1647° / 34°

0.88

47 °

Sourdough, Monday, 16 November

Snow. High 47°, low 34°.

Pressure29.85 inHg

Wind7.4 mph N

Humidity99%

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.