Source Lake, WA 14 Day Weather
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Source Lake, WA Weather Forecast


Source Lake, WA Weather Forecast Dated: 903 PM Tue Sep 22 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Tuesday, September 22, 2026
Mid-Morning
50°F 10°C
Cloudy
Mid-Afternoon
58°F 14°C
Sunny
Early-Evening
49°F 10°C
Sunny
Refreshing around 58°F 14°C, cloudy in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds turning from the W to the WNW at 6 mph 10 km/h.
Wednesday, September 23, 2026
Mid-Morning
48°F 9°C
Overcast
Mid-Afternoon
60°F 15°C
Partly Cloudy
Early-Evening
49°F 10°C
Sunny
Mildly cool near 60°F 15°C, overcast in the morning, cloudy in the afternoon, and sunny this evening, with increasing humidity and steady pressure. Winds blowing from the WNW at 8 mph 13 km/h.
Thursday, September 24, 2026
Mid-Morning
51°F 10°C
Overcast
Mid-Afternoon
64°F 18°C
Overcast
Early-Evening
54°F 12°C
Overcast
Comfortable at 64°F 18°C, overcast throughout the day, with steady humidity and barometric pressure falling.
Friday, September 25, 2026
Mid-Morning
46°F 8°C
Drizzle
Mid-Afternoon
42°F 5°C
Light Showers
Early-Evening
41°F 5°C
Light Showers
Nippy around 42°F 5°C, rounds of showers expected off and on all day, with steady humidity and barometric pressure rising. Winds increasing from the WSW at 1 mph 1 km/h to W at 13 mph 21 km/h. Gusts up to 29 mph 46 km/h.
Saturday, September 26, 2026
Mid-Morning
41°F 5°C
Sunny
Mid-Afternoon
58°F 14°C
Overcast
Early-Evening
47°F 8°C
Overcast
Refreshing around 58°F 14°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling.
Sunday, September 27, 2026
Mid-Morning
46°F 8°C
Overcast
Mid-Afternoon
57°F 14°C
Overcast
Early-Evening
46°F 8°C
Overcast
Cool and brisk at 57°F 14°C, overcast through the afternoon, turning cloudy this evening, with increasing humidity and steady pressure.
Monday, September 28, 2026
Mid-Morning
43°F 6°C
Overcast
Mid-Afternoon
50°F 10°C
Scattered Showers
Early-Evening
44°F 7°C
Scattered Showers
Chilly near 50°F 10°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds out of the W at 8 mph 13 km/h.
Tuesday, September 29, 2026
Mid-Morning
45°F 7°C
Scattered Showers
Mid-Afternoon
59°F 15°C
Partly Cloudy
Early-Evening
51°F 11°C
Cloudy
Cool with a high near 59°F 15°C, scattered downpours possible, with lower humidity and barometric pressure falling.
Wednesday, September 30, 2026
Mid-Morning
50°F 10°C
Overcast
Mid-Afternoon
62°F 17°C
Overcast
Early-Evening
53°F 12°C
Overcast
Refreshing around 62°F 17°C, overcast throughout the day, with steady humidity and steady pressure.
Thursday, October 1, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
61°F 16°C
Sunny
Early-Evening
51°F 11°C
Light Fog
Mildly cool near 61°F 16°C, cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure.
Friday, October 2, 2026
Mid-Morning
51°F 11°C
Sunny
Mid-Afternoon
67°F 19°C
Sunny
Early-Evening
55°F 13°C
Sunny
Comfortable at 67°F 19°C, sunny throughout the day, with lower humidity and steady pressure.
Saturday, October 3, 2026
Mid-Morning
51°F 11°C
Sunny
Mid-Afternoon
68°F 20°C
Sunny
Early-Evening
56°F 14°C
Overcast
Comfortable with temperatures reaching 68°F 20°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling.
Sunday, October 4, 2026
Mid-Morning
52°F 11°C
Overcast
Mid-Afternoon
59°F 15°C
Overcast
Early-Evening
49°F 10°C
Sunny
Refreshing around 59°F 15°C, overcast through the afternoon, turning cloudy this evening, with increasing humidity and barometric pressure rising. Winds blowing from the WNW at 9 mph 14 km/h.
Monday, October 5, 2026
Mid-Morning
47°F 8°C
Overcast
Mid-Afternoon
63°F 17°C
Sunny
Early-Evening
52°F 11°C
Sunny
Mildly cool near 63°F 17°C, partly cloudy in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure.
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