Weather in Arvada, CO
Arvada, Friday, 9 October, 14:30
Overcast. Feels like 81°. High 84°, low 53°.
Monthly outlook for Arvada, CO: average high 68.7°, average low 50.8°. That is 3.8° above the climate normal for October. Precipitation is expected on 1 day (about 0.8 inches), against a normal of 4 days and 0.9 inches. The warmest day looks like 9 October (84.1°), the coolest 17 October (43.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 October – 18 October | 69.5° | 62.6° | +3.9° |
| 19 October – 28 October | 67.2° | 59.4° | +4.3° |
| 29 October – 7 November | at normal | 52.9° | — |
October records over 66 years
0
Arvada, Saturday, 10 October
Clear. High 81°, low 56°.
0
Arvada, Sunday, 11 October
Partly cloudy. High 78°, low 57°.
0Arvada, Monday, 12 October
Clear. High 80°, low 49°.
0.02
Arvada, Tuesday, 13 October
Light rain. High 62°, low 53°.
0.78Arvada, Wednesday, 14 October
Rain. High 53°, low 47°.
0.02Arvada, Thursday, 15 October
Light rain. High 65°, low 44°.
0Arvada, Friday, 16 October
Clear. High 56°, low 46°.
0Arvada, Saturday, 17 October
Clear. High 64°, low 43°.
0Arvada, Sunday, 18 October
Partly cloudy. High 71°, low 53°.
0Arvada, Monday, 19 October
Clear. High 70°, low 54°.
0Arvada, Tuesday, 20 October
Clear. High 73°, low 55°.
0Arvada, Wednesday, 21 October
Clear. High 72°, low 58°.
0Arvada, Thursday, 22 October
Clear. High 59°, low 52°.
0Arvada, Friday, 23 October
Clear. High 56°, low 43°.
0Arvada, Saturday, 24 October
Clear. High 72°, low 51°.
0.07Arvada, Sunday, 25 October
Climate normal for this date — 60-year average.
0.08Arvada, Monday, 26 October
Climate normal for this date — 60-year average.
0.04Arvada, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Arvada, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.08
Arvada, Thursday, 29 October
Climate normal for this date — 60-year average.
0.07Arvada, Friday, 30 October
Climate normal for this date — 60-year average.
0.06Arvada, Saturday, 31 October
Climate normal for this date — 60-year average.
0.08Arvada, Sunday, 1 November
Climate normal for this date — 60-year average.
0.08Arvada, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Arvada, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.03Arvada, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04
Arvada, Thursday, 5 November
Climate normal for this date — 60-year average.
0.04Arvada, Friday, 6 November
Climate normal for this date — 60-year average.
0.03Arvada, Saturday, 7 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 Arvada, 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 Arvada, 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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