Weather in Eureka, CA
Eureka, Tuesday, 13 October, 02:08
Mostly clear. Feels like 43°. High 67°, low 40°.
Monthly outlook for Eureka, CA: average high 59.6°, average low 48.7°. That is 2° below the climate normal for October. Precipitation is expected on 1 day (about 0.8 inches), against a normal of 4 days and 2.4 inches. The warmest day looks like 27 October (68.8°), the coolest 13 October (40.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 October – 22 October | 58° | 63.9° | -3.3° |
| 23 October – 1 November | 62.3° | 61.7° | +0.3° |
| 2 November – 11 November | at normal | 59.3° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Blue Lake (10 mi).
0
Eureka, Wednesday, 14 October
Partly cloudy. High 68°, low 43°.
0
Eureka, Thursday, 15 October
Clear. High 58°, low 52°.
0
Eureka, Friday, 16 October
Overcast. High 53°, low 51°.
0.01
Eureka, Saturday, 17 October
Light rain. High 57°, low 51°.
0.01Eureka, Sunday, 18 October
Light rain. High 55°, low 49°.
0.79Eureka, Monday, 19 October
Rain. High 55°, low 48°.
0.01Eureka, Tuesday, 20 October
Light rain. High 54°, low 46°.
0
Eureka, Wednesday, 21 October
Mostly clear. High 55°, low 45°.
0.01Eureka, Thursday, 22 October
Light rain. High 56°, low 50°.
0Eureka, Friday, 23 October
Clear. High 56°, low 46°.
0Eureka, Saturday, 24 October
Clear. High 60°, low 49°.
0Eureka, Sunday, 25 October
Partly cloudy. High 58°, low 50°.
0Eureka, Monday, 26 October
Partly cloudy. High 65°, low 50°.
0Eureka, Tuesday, 27 October
Clear. High 69°, low 51°.
0Eureka, Wednesday, 28 October
Overcast. High 66°, low 58°.
0.19Eureka, Thursday, 29 October
Climate normal for this date — 60-year average.
0.19
Eureka, Friday, 30 October
Climate normal for this date — 60-year average.
0.13Eureka, Saturday, 31 October
Climate normal for this date — 60-year average.
0.2Eureka, Sunday, 1 November
Climate normal for this date — 60-year average.
0.2Eureka, Monday, 2 November
Climate normal for this date — 60-year average.
0.18Eureka, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.18Eureka, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.26Eureka, Thursday, 5 November
Climate normal for this date — 60-year average.
0.28Eureka, Friday, 6 November
Climate normal for this date — 60-year average.
0.24Eureka, Saturday, 7 November
Climate normal for this date — 60-year average.
0.25Eureka, Sunday, 8 November
Climate normal for this date — 60-year average.
0.24Eureka, Monday, 9 November
Climate normal for this date — 60-year average.
0.22Eureka, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.25Eureka, 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, CA 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, CA 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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