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As of 15:13 MDT

Weather in Greycliff, MT

69°Current weather

Greycliff, Friday, 16 October, 15:13

Mostly clear. Feels like 67°. High 69°, low 31°.

Pressure30.36 inHg
Wind24.2 mph W
Humidity24%
Visibility6.2 mi
Dew point31°
Sat, 1772° / 43°0Overcast
72 °Overcast

Greycliff, Saturday, 17 October

Overcast. High 72°, low 43°.

Pressure30.00 inHg
Wind10.1 mph W
Humidity28%
Visibility6.2 mi
Dew point28°
Sun, 1859° / 37°0Clear
59 °Clear

Greycliff, Sunday, 18 October

Clear. High 59°, low 37°.

Pressure30.12 inHg
Wind5.4 mph E
Humidity43%
Visibility6.2 mi
Dew point34°
Mon, 1966° / 35°0Clear
66 °Clear

Greycliff, Monday, 19 October

Clear. High 66°, low 35°.

Pressure29.91 inHg
Wind0.7 mph E
Humidity41%
Visibility6.2 mi
Dew point34°
Tue, 2066° / 41°0Partly cloudy
66 °Partly cloudy

Greycliff, Tuesday, 20 October

Partly cloudy. High 66°, low 41°.

Pressure29.97 inHg
Wind1.7 mph W
Humidity39%
Visibility6.2 mi
Dew point35°
Wed, 2162° / 38°0Clear
62 °Clear

Greycliff, Wednesday, 21 October

Clear. High 62°, low 38°.

Pressure30.12 inHg
Wind4.9 mph SE
Humidity63%
Visibility—
Dew point39°
Thu, 2261° / 42°0Overcast
61 °Overcast

Greycliff, Thursday, 22 October

Overcast. High 61°, low 42°.

Pressure29.80 inHg
Wind8.8 mph E
Humidity55%
Visibility—
Dew point37°
Fri, 2350° / 39°1.3Heavy rain
50 °Heavy rain

Greycliff, Friday, 23 October

Heavy rain. High 50°, low 39°.

Pressure29.91 inHg
Wind32.4 mph W
Humidity88%
Visibility—
Dew point37°
Sat, 2442° / 36°0Overcast
42 °Overcast

Greycliff, Saturday, 24 October

Overcast. High 42°, low 36°.

Pressure30.39 inHg
Wind21.5 mph W
Humidity54%
Visibility—
Dew point24°
Sun, 2544° / 30°0Clear
44 °Clear

Greycliff, Sunday, 25 October

Clear. High 44°, low 30°.

Pressure30.39 inHg
Wind6.3 mph E
Humidity42%
Visibility—
Dew point17°
Mon, 2653° / 32°0Clear
53 °Clear

Greycliff, Monday, 26 October

Clear. High 53°, low 32°.

Pressure30.15 inHg
Wind6.1 mph E
Humidity46%
Visibility—
Dew point25°
Tue, 2753° / 35°0Overcast
53 °Overcast

Greycliff, Tuesday, 27 October

Overcast. High 53°, low 35°.

Pressure29.74 inHg
Wind8.3 mph SE
Humidity51%
Visibility—
Dew point27°
Wed, 2850° / 43°0Overcast
50 °Overcast

Greycliff, Wednesday, 28 October

Overcast. High 50°, low 43°.

Pressure29.53 inHg
Wind26.8 mph W
Humidity49%
Visibility—
Dew point30°
Thu, 2956° / 38°0Mostly clear
56 °Mostly clear

Greycliff, Thursday, 29 October

Mostly clear. High 56°, low 38°.

Pressure30.00 inHg
Wind25.3 mph W
Humidity38%
Visibility—
Dew point25°
Fri, 3058° / 38°0Overcast
58 °Overcast

Greycliff, Friday, 30 October

Overcast. High 58°, low 38°.

Pressure29.94 inHg
Wind11 mph W
Humidity41%
Visibility—
Dew point25°
Sat, 3157° / 38°0Clear
57 °Clear

Greycliff, Saturday, 31 October

Clear. High 57°, low 38°.

Pressure29.68 inHg
Wind22.1 mph W
Humidity32%
Visibility—
Dew point24°

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.