As of 03:52 MDT

Weather in Greycliff, MT

34°

Greycliff, Wednesday, 14 October, 03:52

Clear. Feels like 27°. High 55°, low 34°.

Pressure30.21 inHg

Wind8.1 mph W

Humidity85%

Visibility6.2 mi

Dew point30°

See detailed hourly forecast

Thu, 1554° / 34°

54 °

Greycliff, Thursday, 15 October

Clear. High 54°, low 34°.

Pressure30.62 inHg

Wind4.5 mph W

Humidity47%

Visibility6.2 mi

Dew point30°

Fri, 1664° / 28°

64 °

Greycliff, Friday, 16 October

Clear. High 64°, low 28°.

Pressure30.45 inHg

Wind5.7 mph SE

Humidity41%

Visibility6.2 mi

Dew point27°

Sat, 1772° / 42°

72 °

Greycliff, Saturday, 17 October

Overcast. High 72°, low 42°.

Pressure30.03 inHg

Wind10.1 mph W

Humidity28%

Visibility6.2 mi

Dew point27°

Sun, 1859° / 40°

59 °

Greycliff, Sunday, 18 October

Overcast. High 59°, low 40°.

Pressure30.12 inHg

Wind7.8 mph E

Humidity41%

Visibility—

Dew point30°

Mon, 1966° / 37°

66 °

Greycliff, Monday, 19 October

Partly cloudy. High 66°, low 37°.

Pressure29.85 inHg

Wind7.8 mph SE

Humidity36%

Visibility—

Dew point30°

Tue, 2073° / 49°

73 °

Greycliff, Tuesday, 20 October

Overcast. High 73°, low 49°.

Pressure29.94 inHg

Wind7.7 mph E

Humidity26%

Visibility—

Dew point28°

Wed, 2160° / 43°

60 °

Greycliff, Wednesday, 21 October

Overcast. High 60°, low 43°.

Pressure30.09 inHg

Wind7 mph E

Humidity40%

Visibility—

Dew point28°

Thu, 2270° / 45°

70 °

Greycliff, Thursday, 22 October

Clear. High 70°, low 45°.

Pressure29.83 inHg

Wind7.1 mph SE

Humidity29%

Visibility—

Dew point28°

Fri, 2360° / 44°

60 °

Greycliff, Friday, 23 October

Overcast. High 60°, low 44°.

Pressure30.03 inHg

Wind17 mph N

Humidity25%

Visibility—

Dew point23°

Sat, 2453° / 37°

53 °

Greycliff, Saturday, 24 October

Clear. High 53°, low 37°.

Pressure30.36 inHg

Wind9.6 mph E

Humidity42%

Visibility—

Dew point24°

Sun, 2568° / 38°

68 °

Greycliff, Sunday, 25 October

Clear. High 68°, low 38°.

Pressure30.00 inHg

Wind10.3 mph W

Humidity18%

Visibility—

Dew point14°

Mon, 2666° / 42°

66 °

Greycliff, Monday, 26 October

Overcast. High 66°, low 42°.

Pressure29.77 inHg

Wind8.4 mph SE

Humidity26%

Visibility—

Dew point22°

Tue, 2754° / 41°

54 °

Greycliff, Tuesday, 27 October

Overcast. High 54°, low 41°.

Pressure29.80 inHg

Wind22.8 mph W

Humidity55%

Visibility—

Dew point33°

Wed, 2864° / 35°

64 °

Greycliff, Wednesday, 28 October

Overcast. High 64°, low 35°.

Pressure29.68 inHg

Wind10 mph S

Humidity27%

Visibility—

Dew point19°

Thu, 2954° / 44°

0.03

54 °

Greycliff, Thursday, 29 October

Light rain. High 54°, low 44°.

Pressure29.59 inHg

Wind10.5 mph NW

Humidity46%

Visibility—

Dew point32°

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 Greycliff, 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 Greycliff, 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.