Weather in Castle Rock, WA
Castle Rock, Sunday, 25 October, 11:52
Rain. Feels like 50°. High 54°, low 45°.
Monthly outlook for Castle Rock, WA: average high 54.3°, average low 44.3°. That is 0.7° above the climate normal for October. Precipitation is expected on 13 days (about 5.1 inches), against a normal of 9 days and 4.5 inches. The warmest day looks like 9 November (61.4°), the coolest 1 November (36.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 53.5° | 53.9° | -0.2° |
| 4 November – 13 November | 55.5° | 51.3° | +2.3° |
| 14 November – 23 November | at normal | 47.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Sightly (10 mi).
0.11Castle Rock, Monday, 26 October
Light rain. High 57°, low 45°.
0.15Castle Rock, Tuesday, 27 October
Light rain. High 57°, low 45°.
0.24Castle Rock, Wednesday, 28 October
Light rain. High 52°, low 43°.
0.19Castle Rock, Thursday, 29 October
Light rain. High 51°, low 41°.
0.11Castle Rock, Friday, 30 October
Light rain. High 53°, low 38°.
0
Castle Rock, Saturday, 31 October
Overcast. High 54°, low 37°.
0Castle Rock, Sunday, 1 November
Overcast. High 53°, low 36°.
0.01Castle Rock, Monday, 2 November
Light rain. High 55°, low 38°.
0.49Castle Rock, Tuesday, 3 November
Rain. High 49°, low 47°.
0.26Castle Rock, Wednesday, 4 November
Light rain. High 55°, low 49°.
0.86Castle Rock, Thursday, 5 November
Rain. High 53°, low 50°.
0.41Castle Rock, Friday, 6 November
Rain. High 54°, low 47°.
0.11Castle Rock, Saturday, 7 November
Light rain. High 57°, low 50°.
0.94Castle Rock, Sunday, 8 November
Rain. High 53°, low 50°.
0.54Castle Rock, Monday, 9 November
Rain. High 61°, low 48°.
0.22Castle Rock, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.3Castle Rock, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.34Castle Rock, Thursday, 12 November
Climate normal for this date — 60-year average.
0.37Castle Rock, Friday, 13 November
Climate normal for this date — 60-year average.
0.29Castle Rock, Saturday, 14 November
Climate normal for this date — 60-year average.
0.3Castle Rock, Sunday, 15 November
Climate normal for this date — 60-year average.
0.28Castle Rock, Monday, 16 November
Climate normal for this date — 60-year average.
0.35Castle Rock, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.24Castle Rock, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.41Castle Rock, Thursday, 19 November
Climate normal for this date — 60-year average.
0.35Castle Rock, Friday, 20 November
Climate normal for this date — 60-year average.
0.31Castle Rock, Saturday, 21 November
Climate normal for this date — 60-year average.
0.33Castle Rock, Sunday, 22 November
Climate normal for this date — 60-year average.
0.39Castle Rock, Monday, 23 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 Castle Rock, WA 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 Castle Rock, WA 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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