Weather in John Sam Lake, WA
John Sam Lake, Tuesday, 3 November, 21:00
Overcast. Feels like 41°. High 56°, low 42°.
Monthly outlook for John Sam Lake, WA: average high 53.3°, average low 44.5°. That is 1.8° above the climate normal for November. Precipitation is expected on 10 days (about 1.9 inches), against a normal of 10 days and 5.0 inches. The warmest day looks like 7 November (57.8°), the coolest 9 November (38.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 3 November – 12 November | 54.3° | 51° | +1.8° |
| 13 November – 22 November | 51.8° | 47.8° | +2.2° |
| 23 November – 2 December | at normal | 44.8° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Marysville (4 mi).
0.07
John Sam Lake, Wednesday, 4 November
Light rain. High 55°, low 41°.
0.07John Sam Lake, Thursday, 5 November
Light rain. High 55°, low 45°.
0.26John Sam Lake, Friday, 6 November
Rain. High 53°, low 47°.
0John Sam Lake, Saturday, 7 November
Overcast. High 58°, low 45°.
0.27John Sam Lake, Sunday, 8 November
Rain. High 56°, low 46°.
0
John Sam Lake, Monday, 9 November
Partly cloudy. High 53°, low 39°.
0.02John Sam Lake, Tuesday, 10 November
Light rain. High 51°, low 41°.
0.07John Sam Lake, Wednesday, 11 November
Light rain. High 54°, low 47°.
0.01John Sam Lake, Thursday, 12 November
Light rain. High 52°, low 49°.
0.19John Sam Lake, Friday, 13 November
Light rain. High 51°, low 45°.
0.38John Sam Lake, Saturday, 14 November
Rain. High 49°, low 47°.
0.02John Sam Lake, Sunday, 15 November
Light rain. High 52°, low 45°.
0.04John Sam Lake, Monday, 16 November
Light rain. High 52°, low 43°.
0.21John Sam Lake, Tuesday, 17 November
Light rain. High 52°, low 44°.
0.28John Sam Lake, Wednesday, 18 November
Light rain. High 55°, low 48°.
0.38John Sam Lake, Thursday, 19 November
Climate normal for this date — 60-year average.
0.32John Sam Lake, Friday, 20 November
Climate normal for this date — 60-year average.
0.31John Sam Lake, Saturday, 21 November
Climate normal for this date — 60-year average.
0.26John Sam Lake, Sunday, 22 November
Climate normal for this date — 60-year average.
0.45John Sam Lake, Monday, 23 November
Climate normal for this date — 60-year average.
0.37John Sam Lake, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.37John Sam Lake, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.25John Sam Lake, Thursday, 26 November
Climate normal for this date — 60-year average.
0.35John Sam Lake, Friday, 27 November
Climate normal for this date — 60-year average.
0.26John Sam Lake, Saturday, 28 November
Climate normal for this date — 60-year average.
0.27John Sam Lake, Sunday, 29 November
Climate normal for this date — 60-year average.
0.31John Sam Lake, Monday, 30 November
Climate normal for this date — 60-year average.
0.32John Sam Lake, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.36John Sam Lake, Wednesday, 2 December
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 John Sam Lake, 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 John Sam Lake, 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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