Weather in Granby, CO
Granby, Monday, 12 October, 14:21
Partly cloudy. Feels like 62°. High 66°, low 49°.
Monthly outlook for Granby, CO: average high 55.7°, average low 34.1°. That is 3.1° above the climate normal for October. Precipitation is expected on 5 days (about 1.1 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 12 October (66°), the coolest 25 October (23.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 57.3° | 51.5° | +3.2° |
| 22 October – 31 October | 52.9° | 46.2° | +3.8° |
| 1 November – 10 November | at normal | 41.5° | — |
October records over 66 years
0.41
Granby, Tuesday, 13 October
Rain. High 55°, low 46°.
0.21Granby, Wednesday, 14 October
Rain. High 53°, low 39°.
0.28
Granby, Thursday, 15 October
Snow. High 50°, low 35°.
0
Granby, Friday, 16 October
Clear. High 61°, low 29°.
0Granby, Saturday, 17 October
Clear. High 57°, low 31°.
0
Granby, Sunday, 18 October
Overcast. High 53°, low 30°.
0.01Granby, Monday, 19 October
Light rain. High 56°, low 32°.
0Granby, Tuesday, 20 October
Clear. High 62°, low 35°.
0Granby, Wednesday, 21 October
Overcast. High 61°, low 39°.
0Granby, Thursday, 22 October
Light rain. High 60°, low 37°.
0.04Granby, Friday, 23 October
Light snow. High 50°, low 31°.
0.09Granby, Saturday, 24 October
Snow. High 40°, low 29°.
0Granby, Sunday, 25 October
Clear. High 49°, low 24°.
0
Granby, Monday, 26 October
Mostly clear. High 56°, low 26°.
0Granby, Tuesday, 27 October
Mostly clear. High 62°, low 32°.
0.06Granby, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.07Granby, Thursday, 29 October
Climate normal for this date — 60-year average.
0.05Granby, Friday, 30 October
Climate normal for this date — 60-year average.
0.04
Granby, Saturday, 31 October
Climate normal for this date — 60-year average.
0.07Granby, Sunday, 1 November
Climate normal for this date — 60-year average.
0.08Granby, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Granby, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.04Granby, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.06Granby, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Granby, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Granby, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07Granby, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Granby, Monday, 9 November
Climate normal for this date — 60-year average.
0.06Granby, Tuesday, 10 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 Granby, 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 Granby, 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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