Weather in Eureka, CO
Eureka, Tuesday, 13 October, 00:31
Overcast. Feels like 36°. High 42°, low 29°.
Monthly outlook for Eureka, CO: average high 35°, average low 18.7°. That is 7.3° below the climate normal for October. Precipitation is expected on 5 days (about 2.2 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 27 October (42.6°), the coolest 22 October (5.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 October – 22 October | 35.6° | 49.3° | -7.6° |
| 23 October – 1 November | 34° | 44.6° | -5.9° |
| 2 November – 11 November | at normal | 41.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Silverton (7 mi).
0.36
Eureka, Wednesday, 14 October
Snow. High 34°, low 12°.
0
Eureka, Thursday, 15 October
Partly cloudy. High 36°, low 14°.
0
Eureka, Friday, 16 October
Clear. High 39°, low 12°.
0Eureka, Saturday, 17 October
Overcast. High 36°, low 24°.
0Eureka, Sunday, 18 October
Overcast. High 39°, low 20°.
0Eureka, Monday, 19 October
Clear. High 42°, low 27°.
0.05Eureka, Tuesday, 20 October
Light snow. High 37°, low 27°.
1.16Eureka, Wednesday, 21 October
Snow. High 31°, low 14°.
0.13Eureka, Thursday, 22 October
Light snow. High 21°, low 5°.
0Eureka, Friday, 23 October
Clear. High 27°, low 8°.
0.01Eureka, Saturday, 24 October
Light snow. High 23°, low 10°.
0Eureka, Sunday, 25 October
Clear. High 33°, low 15°.
0Eureka, Monday, 26 October
Clear. High 37°, low 23°.
0Eureka, Tuesday, 27 October
Clear. High 43°, low 29°.
0Eureka, Wednesday, 28 October
Clear. High 41°, low 30°.
0.13
Eureka, Thursday, 29 October
Climate normal for this date — 60-year average.
0.08Eureka, Friday, 30 October
Climate normal for this date — 60-year average.
0.12Eureka, Saturday, 31 October
Climate normal for this date — 60-year average.
0.07Eureka, Sunday, 1 November
Climate normal for this date — 60-year average.
0.08Eureka, Monday, 2 November
Climate normal for this date — 60-year average.
0.09Eureka, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.04Eureka, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.06Eureka, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Eureka, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Eureka, Saturday, 7 November
Climate normal for this date — 60-year average.
0.12Eureka, Sunday, 8 November
Climate normal for this date — 60-year average.
0.15Eureka, Monday, 9 November
Climate normal for this date — 60-year average.
0.07Eureka, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.12Eureka, 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 Eureka, 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 Eureka, 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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