Weather in Eureka, CO
Eureka, Sunday, 18 October, 13:10
Overcast. Feels like 49°. High 53°, low 20°.
Monthly outlook for Eureka, CO: average high 33.8°, average low 17.5°. That is 6.6° below the climate normal for October. Precipitation is expected on 9 days (about 2.3 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 18 October (52.8°), the coolest 30 October (-3.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 37.6° | 47.3° | -5.4° |
| 28 October – 6 November | 27.5° | 42.8° | -8.5° |
| 7 November – 16 November | at normal | 39.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Silverton (7 mi).
0
Eureka, Monday, 19 October
Light rain. High 44°, low 25°.
0.01
Eureka, Tuesday, 20 October
Light snow. High 39°, low 22°.
0.27Eureka, Wednesday, 21 October
Snow. High 38°, low 18°.
0.27Eureka, Thursday, 22 October
Snow. High 38°, low 35°.
0.06Eureka, Friday, 23 October
Light snow. High 35°, low 18°.
0
Eureka, Saturday, 24 October
Clear. High 33°, low 16°.
0.01Eureka, Sunday, 25 October
Light snow. High 35°, low 22°.
0.52Eureka, Monday, 26 October
Snow. High 32°, low 29°.
0.52Eureka, Tuesday, 27 October
Snow. High 30°, low 22°.
0.04Eureka, Wednesday, 28 October
Light snow. High 30°, low 15°.
0.06Eureka, Thursday, 29 October
Light snow. High 29°, low 16°.
0.3Eureka, Friday, 30 October
Snow. High 24°, low -4°.
0Eureka, Saturday, 31 October
Clear. High 23°, low -3°.
0
Eureka, Sunday, 1 November
Partly cloudy. High 31°, low 10°.
0.19Eureka, Monday, 2 November
Snow. High 29°, low 19°.
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.
0.15
Eureka, 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.
0.13Eureka, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Eureka, Friday, 13 November
Climate normal for this date — 60-year average.
0.06Eureka, Saturday, 14 November
Climate normal for this date — 60-year average.
0.08Eureka, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07Eureka, Monday, 16 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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