Weather in Greystone, CO
Greystone, Saturday, 10 October, 18:56
Light rain. Feels like 56°. High 66°, low 50°.
Monthly outlook for Greystone, CO: average high 59.7°, average low 43.9°. That is 2.1° above the climate normal for October. Precipitation is expected on 6 days (about 2.0 inches), against a normal of 3 days and 0.7 inches. The warmest day looks like 10 October (66.2°), the coolest 17 October (35.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 October – 19 October | 57.4° | 57.3° | +0.1° |
| 20 October – 29 October | 63.6° | 51.9° | +6.5° |
| 30 October – 8 November | at normal | 45° | — |
October records over 66 years
0.38Greystone, Sunday, 11 October
Rain. High 65°, low 48°.
0.19Greystone, Monday, 12 October
Light rain. High 58°, low 46°.
0.18Greystone, Tuesday, 13 October
Light rain. High 60°, low 42°.
0.69Greystone, Wednesday, 14 October
Rain. High 48°, low 42°.
0.25Greystone, Thursday, 15 October
Light rain. High 54°, low 38°.
0.03Greystone, Friday, 16 October
Light rain. High 44°, low 36°.
0
Greystone, Saturday, 17 October
Clear. High 57°, low 35°.
0
Greystone, Sunday, 18 October
Mostly clear. High 59°, low 42°.
0
Greystone, Monday, 19 October
Overcast. High 63°, low 44°.
0Greystone, Tuesday, 20 October
Clear. High 62°, low 45°.
0Greystone, Wednesday, 21 October
Mostly clear. High 64°, low 48°.
0Greystone, Thursday, 22 October
Mostly clear. High 59°, low 44°.
0Greystone, Friday, 23 October
Clear. High 65°, low 46°.
0Greystone, Saturday, 24 October
Clear. High 66°, low 48°.
0Greystone, Sunday, 25 October
Overcast. High 66°, low 48°.
0.05
Greystone, Monday, 26 October
Climate normal for this date — 60-year average.
0.05Greystone, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.07Greystone, Wednesday, 28 October
Climate normal for this date — 60-year average.
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.
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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