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As of 15:34 MDT

Weather in Greycliff, MT

54°Current weather

Greycliff, Thursday, 15 October, 15:34

Clear. Feels like 52°. High 54°, low 38°.

Pressure30.59 inHg
Wind9.2 mph W
Humidity49%
Visibility6.2 mi
Dew point35°
Fri, 1665° / 33°0Clear
65 °Clear

Greycliff, Friday, 16 October

Clear. High 65°, low 33°.

Pressure30.45 inHg
Wind5 mph SE
Humidity38%
Visibility6.2 mi
Dew point27°
Sat, 1772° / 42°0Overcast
72 °Overcast

Greycliff, Saturday, 17 October

Overcast. High 72°, low 42°.

Pressure30.00 inHg
Wind10.3 mph W
Humidity27%
Visibility6.2 mi
Dew point27°
Sun, 1859° / 38°0Clear
59 °Clear

Greycliff, Sunday, 18 October

Clear. High 59°, low 38°.

Pressure30.09 inHg
Wind5.5 mph E
Humidity43%
Visibility6.2 mi
Dew point33°
Mon, 1966° / 36°0Clear
66 °Clear

Greycliff, Monday, 19 October

Clear. High 66°, low 36°.

Pressure29.91 inHg
Wind0.7 mph NE
Humidity41%
Visibility6.2 mi
Dew point34°
Tue, 2069° / 40°0Clear
69 °Clear

Greycliff, Tuesday, 20 October

Clear. High 69°, low 40°.

Pressure29.88 inHg
Wind7.3 mph SW
Humidity37%
Visibility—
Dew point34°
Wed, 2169° / 44°0Clear
69 °Clear

Greycliff, Wednesday, 21 October

Clear. High 69°, low 44°.

Pressure29.85 inHg
Wind11.8 mph E
Humidity38%
Visibility—
Dew point34°
Thu, 2264° / 48°0.02Light rain
64 °Light rain

Greycliff, Thursday, 22 October

Light rain. High 64°, low 48°.

Pressure29.68 inHg
Wind15.6 mph W
Humidity42%
Visibility—
Dew point37°
Fri, 2359° / 44°0Light rain
59 °Light rain

Greycliff, Friday, 23 October

Light rain. High 59°, low 44°.

Pressure29.85 inHg
Wind21.3 mph W
Humidity39%
Visibility—
Dew point29°
Sat, 2446° / 38°0.16Snow
46 °Snow

Greycliff, Saturday, 24 October

Snow. High 46°, low 38°.

Pressure30.30 inHg
Wind15.2 mph W
Humidity49%
Visibility—
Dew point27°
Sun, 2549° / 31°0Clear
49 °Clear

Greycliff, Sunday, 25 October

Clear. High 49°, low 31°.

Pressure30.39 inHg
Wind6.4 mph E
Humidity44%
Visibility—
Dew point21°
Mon, 2664° / 33°0Clear
64 °Clear

Greycliff, Monday, 26 October

Clear. High 64°, low 33°.

Pressure29.94 inHg
Wind16.8 mph W
Humidity27%
Visibility—
Dew point17°
Tue, 2758° / 43°0Overcast
58 °Overcast

Greycliff, Tuesday, 27 October

Overcast. High 58°, low 43°.

Pressure29.94 inHg
Wind7.2 mph W
Humidity31%
Visibility—
Dew point24°
Wed, 2863° / 45°0Mostly clear
63 °Mostly clear

Greycliff, Wednesday, 28 October

Mostly clear. High 63°, low 45°.

Pressure29.85 inHg
Wind26 mph W
Humidity34%
Visibility—
Dew point31°
Thu, 2961° / 35°0Clear
61 °Clear

Greycliff, Thursday, 29 October

Clear. High 61°, low 35°.

Pressure30.21 inHg
Wind24.1 mph W
Humidity23%
Visibility—
Dew point14°
Fri, 3053° / 35°0Clear
53 °Clear

Greycliff, Friday, 30 October

Clear. High 53°, low 35°.

Pressure30.30 inHg
Wind5.3 mph SE
Humidity35%
Visibility—
Dew point19°

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.