As of 18:54 PST

Weather in John Sam Lake, WA

54°Current weather

John Sam Lake, Thursday, 12 November, 18:54

Clear. Feels like 52°. High 58°, low 51°.

Pressure29.50 inHg
Wind3.4 mph N
Humidity79%
Visibility6.2 mi
Dew point47°

Monthly outlook for John Sam Lake, WA: average high 50.9°, average low 41.1°. That is 2.1° above the climate normal for November. Precipitation is expected on 7 days (about 2.1 inches), against a normal of 11 days and 5.3 inches. The warmest day looks like 13 November (60°), the coolest 18 November (32.7°).

50.9°/41.1°
Average high / low
+2.1°
Above normal
7 / 11
Wet days / normal
2.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
12 November – 21 November51.5°48.2°+1.8°
22 November – 1 December50°44.9°+2.8°
2 December – 11 Decemberat normal43.6°—

November records over 66 years

66.6°4 November 1980All-time high
-0.2°23 November 1985All-time low

Climate normals and records are computed from the nearest reference point — Marysville (4 mi).

Fri, 1360° / 52°0.07Light rain
60 °Light rain

John Sam Lake, Friday, 13 November

Light rain. High 60°, low 52°.

Pressure29.29 inHg
Wind14.3 mph S
Humidity74%
Visibility3.9 mi
Dew point48°
Sat, 1458° / 50°0.11Light rain
58 °Light rain

John Sam Lake, Saturday, 14 November

Light rain. High 58°, low 50°.

Pressure29.71 inHg
Wind10.1 mph SE
Humidity70%
Visibility3.8 mi
Dew point45°
Sun, 1554° / 46°0.32Rain
54 °Rain

John Sam Lake, Sunday, 15 November

Rain. High 54°, low 46°.

Pressure29.83 inHg
Wind15 mph S
Humidity69%
Visibility6.2 mi
Dew point44°
Mon, 1651° / 43°0.18Rain
51 °Rain

John Sam Lake, Monday, 16 November

Rain. High 51°, low 43°.

Pressure30.06 inHg
Wind9.4 mph SE
Humidity67%
Visibility6.2 mi
Dew point40°
Tue, 1748° / 36°0Mostly clear
48 °Mostly clear

John Sam Lake, Tuesday, 17 November

Mostly clear. High 48°, low 36°.

Pressure30.09 inHg
Wind6.9 mph SE
Humidity95%
Visibility—
Dew point42°
Wed, 1846° / 33°0Overcast
46 °Overcast

John Sam Lake, Wednesday, 18 November

Overcast. High 46°, low 33°.

Pressure29.83 inHg
Wind4.3 mph E
Humidity69%
Visibility—
Dew point32°
Thu, 1946° / 36°0Mostly clear
46 °Mostly clear

John Sam Lake, Thursday, 19 November

Mostly clear. High 46°, low 36°.

Pressure30.03 inHg
Wind7.1 mph NW
Humidity71%
Visibility—
Dew point33°
Fri, 2046° / 33°0Partly cloudy
46 °Partly cloudy

John Sam Lake, Friday, 20 November

Partly cloudy. High 46°, low 33°.

Pressure30.15 inHg
Wind5 mph NW
Humidity68%
Visibility—
Dew point30°
Sat, 2147° / 33°0Mostly clear
47 °Mostly clear

John Sam Lake, Saturday, 21 November

Mostly clear. High 47°, low 33°.

Pressure30.15 inHg
Wind2.4 mph E
Humidity57%
Visibility—
Dew point26°
Sun, 2248° / 34°0Partly cloudy
48 °Partly cloudy

John Sam Lake, Sunday, 22 November

Partly cloudy. High 48°, low 34°.

Pressure30.15 inHg
Wind2.5 mph SE
Humidity61%
Visibility—
Dew point29°
Mon, 2348° / 34°0Partly cloudy
48 °Partly cloudy

John Sam Lake, Monday, 23 November

Partly cloudy. High 48°, low 34°.

Pressure30.18 inHg
Wind2.9 mph E
Humidity65%
Visibility—
Dew point30°
Tue, 2445° / 36°0.01Light rain
45 °Light rain

John Sam Lake, Tuesday, 24 November

Light rain. High 45°, low 36°.

Pressure30.15 inHg
Wind3.8 mph SE
Humidity71%
Visibility—
Dew point33°
Wed, 2552° / 45°0.82Rain
52 °Rain

John Sam Lake, Wednesday, 25 November

Rain. High 52°, low 45°.

Pressure29.94 inHg
Wind9.9 mph SE
Humidity94%
Visibility—
Dew point45°
Thu, 2653° / 48°0.19Rain
53 °Rain

John Sam Lake, Thursday, 26 November

Rain. High 53°, low 48°.

Pressure29.97 inHg
Wind16.8 mph S
Humidity79%
Visibility—
Dew point44°
Fri, 2754° / 48°0.36Rain
54 °Rain

John Sam Lake, Friday, 27 November

Rain. High 54°, low 48°.

Pressure29.94 inHg
Wind18.7 mph SE
Humidity87%
Visibility—
Dew point48°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2845° / 35°0.26Climate normal
45 °Climate normal

John Sam Lake, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high45°
Average low35°
Average precipitation0.26 in
Chance of precipitation60%
Record high56° (2021)
Record low13° (1985)
Sun, 2944° / 35°0.27Climate normal
44 °Climate normal

John Sam Lake, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high44°
Average low35°
Average precipitation0.27 in
Chance of precipitation55%
Record high55° (2021)
Record low7° (1985)
Mon, 3044° / 36°0.31Climate normal
44 °Climate normal

John Sam Lake, Monday, 30 November

Climate normal for this date — 60-year average.

Average high44°
Average low36°
Average precipitation0.31 in
Chance of precipitation67%
Record high57° (2008)
Record low9° (1985)
Tue, 0145° / 36°0.32Climate normal
45 °Climate normal

John Sam Lake, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high45°
Average low36°
Average precipitation0.32 in
Chance of precipitation68%
Record high55° (2021)
Record low6° (1985)
Wed, 0244° / 36°0.36Climate normal
44 °Climate normal

John Sam Lake, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high44°
Average low36°
Average precipitation0.36 in
Chance of precipitation70%
Record high54° (2021)
Record low19° (1985)
Thu, 0344° / 35°0.36Climate normal
44 °Climate normal

John Sam Lake, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high44°
Average low35°
Average precipitation0.36 in
Chance of precipitation63%
Record high55° (1965)
Record low21° (1994)
Fri, 0444° / 34°0.29Climate normal
44 °Climate normal

John Sam Lake, Friday, 4 December

Climate normal for this date — 60-year average.

Average high44°
Average low34°
Average precipitation0.29 in
Chance of precipitation60%
Record high54° (2007)
Record low10° (1994)
Sat, 0543° / 34°0.25Climate normal
43 °Climate normal

John Sam Lake, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high43°
Average low34°
Average precipitation0.25 in
Chance of precipitation60%
Record high55° (2023)
Record low14° (1994)
Sun, 0644° / 35°0.24Climate normal
44 °Climate normal

John Sam Lake, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high44°
Average low35°
Average precipitation0.24 in
Chance of precipitation52%
Record high53° (2019)
Record low21° (1972)
Mon, 0743° / 35°0.24Climate normal
43 °Climate normal

John Sam Lake, Monday, 7 December

Climate normal for this date — 60-year average.

Average high43°
Average low35°
Average precipitation0.24 in
Chance of precipitation60%
Record high52° (2014)
Record low12° (1972)
Tue, 0843° / 35°0.3Climate normal
43 °Climate normal

John Sam Lake, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high43°
Average low35°
Average precipitation0.3 in
Chance of precipitation60%
Record high55° (2014)
Record low11° (1972)
Wed, 0943° / 35°0.31Climate normal
43 °Climate normal

John Sam Lake, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high43°
Average low35°
Average precipitation0.31 in
Chance of precipitation67%
Record high55° (2014)
Record low21° (1972)
Thu, 1044° / 36°0.38Climate normal
44 °Climate normal

John Sam Lake, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high44°
Average low36°
Average precipitation0.38 in
Chance of precipitation73%
Record high58° (2014)
Record low13° (1972)
Fri, 1144° / 37°0.35Climate normal
44 °Climate normal

John Sam Lake, Friday, 11 December

Climate normal for this date — 60-year average.

Average high44°
Average low37°
Average precipitation0.35 in
Chance of precipitation70%
Record high56° (2025)
Record low19° (1971)

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.