Weather in Greystone, CO
Greystone, Tuesday, 13 October, 02:25
Partly cloudy. Feels like 46°. High 55°, low 42°.
Monthly outlook for Greystone, CO: average high 51.9°, average low 36.6°. That is 1.3° below the climate normal for October. Precipitation is expected on 5 days (about 0.8 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 19 October (62.8°), the coolest 16 October (28.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 October – 22 October | 54.3° | 56° | -1° |
| 23 October – 1 November | 48° | 49.2° | -0.7° |
| 2 November – 11 November | at normal | 43.7° | — |
October records over 66 years
0.14
Greystone, Wednesday, 14 October
Light rain. High 50°, low 40°.
0.09Greystone, Thursday, 15 October
Light rain. High 50°, low 35°.
0
Greystone, Friday, 16 October
Clear. High 55°, low 29°.
0
Greystone, Saturday, 17 October
Mostly clear. High 61°, low 32°.
0Greystone, Sunday, 18 October
Clear. High 60°, low 37°.
0Greystone, Monday, 19 October
Clear. High 63°, low 47°.
0.01Greystone, Tuesday, 20 October
Light rain. High 62°, low 47°.
0.44
Greystone, Wednesday, 21 October
Snow. High 46°, low 36°.
0.01Greystone, Thursday, 22 October
Light rain. High 42°, low 32°.
0.01Greystone, Friday, 23 October
Light rain. High 47°, low 33°.
0.05Greystone, Saturday, 24 October
Light snow. High 40°, low 34°.
0
Greystone, Sunday, 25 October
Partly cloudy. High 43°, low 31°.
0
Greystone, Monday, 26 October
Overcast. High 46°, low 34°.
0Greystone, Tuesday, 27 October
Clear. High 54°, low 34°.
0Greystone, Wednesday, 28 October
Clear. High 58°, low 41°.
0.09Greystone, Thursday, 29 October
Climate normal for this date — 60-year average.
0.04Greystone, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Greystone, Saturday, 31 October
Climate normal for this date — 60-year average.
0.04Greystone, Sunday, 1 November
Climate normal for this date — 60-year average.
0.03Greystone, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Greystone, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.02Greystone, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04Greystone, Thursday, 5 November
Climate normal for this date — 60-year average.
0.02Greystone, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Greystone, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Greystone, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Greystone, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Greystone, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Greystone, Wednesday, 11 November
Climate normal for this date — 60-year average.
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 Greystone, CO 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 Greystone, CO 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.
Sun and moon today
Weather history
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