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As of 06:22 MDT

Weather in Greycliff, MT

32°Current weather

Greycliff, Monday, 12 October, 06:22

Overcast. Feels like 24°. High 40°, low 31°.

Pressure30.00 inHg
Wind9.2 mph W
Humidity93%
Visibility6.2 mi
Dew point31°
Tue, 1351° / 31°0Mostly clear
51 °Mostly clear

Greycliff, Tuesday, 13 October

Mostly clear. High 51°, low 31°.

Pressure30.12 inHg
Wind4.2 mph W
Humidity65%
Visibility5.8 mi
Dew point31°
Wed, 1460° / 28°0Clear
60 °Clear

Greycliff, Wednesday, 14 October

Clear. High 60°, low 28°.

Pressure30.09 inHg
Wind4.2 mph SW
Humidity44%
Visibility6.2 mi
Dew point31°
Thu, 1556° / 34°0Clear
56 °Clear

Greycliff, Thursday, 15 October

Clear. High 56°, low 34°.

Pressure30.59 inHg
Wind5.3 mph SE
Humidity47%
Visibility6.2 mi
Dew point34°
Fri, 1664° / 32°0Clear
64 °Clear

Greycliff, Friday, 16 October

Clear. High 64°, low 32°.

Pressure30.39 inHg
Wind7.1 mph SE
Humidity39%
Visibility—
Dew point27°
Sat, 1769° / 39°0Clear
69 °Clear

Greycliff, Saturday, 17 October

Clear. High 69°, low 39°.

Pressure29.91 inHg
Wind15.8 mph W
Humidity30%
Visibility—
Dew point29°
Sun, 1870° / 48°0Overcast
70 °Overcast

Greycliff, Sunday, 18 October

Overcast. High 70°, low 48°.

Pressure29.85 inHg
Wind20.4 mph NW
Humidity34%
Visibility—
Dew point33°
Mon, 1972° / 44°0Overcast
72 °Overcast

Greycliff, Monday, 19 October

Overcast. High 72°, low 44°.

Pressure29.83 inHg
Wind8.6 mph W
Humidity38%
Visibility—
Dew point33°
Tue, 2067° / 47°0.09Light rain
67 °Light rain

Greycliff, Tuesday, 20 October

Light rain. High 67°, low 47°.

Pressure29.56 inHg
Wind10.8 mph NW
Humidity28%
Visibility—
Dew point31°
Wed, 2155° / 43°0.19Rain
55 °Rain

Greycliff, Wednesday, 21 October

Rain. High 55°, low 43°.

Pressure30.00 inHg
Wind11.3 mph W
Humidity49%
Visibility—
Dew point31°
Thu, 2262° / 40°0Clear
62 °Clear

Greycliff, Thursday, 22 October

Clear. High 62°, low 40°.

Pressure30.12 inHg
Wind7.3 mph W
Humidity32%
Visibility—
Dew point25°
Fri, 2362° / 39°0Clear
62 °Clear

Greycliff, Friday, 23 October

Clear. High 62°, low 39°.

Pressure30.09 inHg
Wind3.8 mph E
Humidity42%
Visibility—
Dew point29°
Sat, 2462° / 49°0Overcast
62 °Overcast

Greycliff, Saturday, 24 October

Overcast. High 62°, low 49°.

Pressure29.94 inHg
Wind12.9 mph W
Humidity32%
Visibility—
Dew point31°
Sun, 2565° / 44°0Clear
65 °Clear

Greycliff, Sunday, 25 October

Clear. High 65°, low 44°.

Pressure30.15 inHg
Wind5.3 mph SE
Humidity40%
Visibility—
Dew point33°
Mon, 2669° / 45°0Clear
69 °Clear

Greycliff, Monday, 26 October

Clear. High 69°, low 45°.

Pressure29.97 inHg
Wind10 mph W
Humidity28%
Visibility—
Dew point27°
Tue, 2771° / 47°0Overcast
71 °Overcast

Greycliff, Tuesday, 27 October

Overcast. High 71°, low 47°.

Pressure29.80 inHg
Wind13 mph W
Humidity29%
Visibility—
Dew point28°

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.