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Napavine, WA Weather Tomorrow

See tomorrow's forecast for Napavine together with a reliable 5 day outlook featuring precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction for the Napavine area and around Lewis county, Washington.
Updated: Fri Aug 28th 2026 4:30 PM PDT
Napavine, WA Weather – 8-28 – Overcast
76° / 52°
Overcast
In Napavine, overcast is likely with a high near 76°F and a low around 52°F. There might be light rainfall having a 13% chance. Wind will be moderate, blowing around 12mph on average and gusts of 19.7mph at 8 PM. The humidity will be on the higher side, averaging about 74%, the maximum being 99% at 11 PM and 45% being its lowest at 5 PM. Barometric pressure is its highest of 30.02inHg at 10 PM, a lowest point of 29.97inHg at 5 PM with an avg 29.99inHg.
Napavine, WA Weather – 8-29 – Scattered Showers
69° / 51°

Weather Tomorrow

Scattered Showers
Napavine may see scattered showers, with daytime highs of 69°F and overnight lows near 51°F. There's a moderate 32% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 12mph on average and gusts of 17.4mph at 8 PM. The humidity will be on the higher side, averaging about 74%, the maximum being 99% at 11 PM and 42% being its lowest at 2 PM. Barometric pressure is its highest of 30.07inHg at 10 PM, a lowest point of 30.02inHg at 12 AM with an avg 30.04inHg.
Napavine, WA Weather – 8-30 – Overcast
67° / 51°
Overcast
Highs will reach 67°F with lows near 51°F in Napavine, where overcast is. There's a moderate 30% chance of rainfall with an estimated 0.01in. Winds will be light at 8mph and gusts of 14.3mph at 6 PM. The humidity will be on the higher side, averaging about 74%, the maximum being 98% at 12 AM and 46% being its lowest at 5 PM. Barometric pressure is its highest of 30.08inHg at 1 AM, a lowest point of 29.98inHg at 5 PM with an avg 30.03inHg.
Napavine, WA Weather – 8-31 – Overcast
75° / 49°
Overcast
Daytime highs will reach 75°F with lows dropping to 49°F in Napavine, where skies will be overcast. There might be light rainfall having a 19% chance. Wind will be moderate, blowing around 11mph on average and gusts of 17mph at 5 PM. The humidity will be on the higher side, averaging about 73%, the maximum being 98% at 5 AM and 38% being its lowest at 3 PM. Barometric pressure is its highest of 30.01inHg at 12 AM, a lowest point of 29.77inHg at 6 PM with an avg 29.9inHg.
Napavine, WA Weather – 9-1 – Overcast
74° / 51°
Overcast
Overcast is in the forecast for Napavine, with a high of 74°F and a low of 51°F. Rainfall predicted to have a 73% chance with an estimated 0.11in. Wind will be moderate, blowing around 12mph on average and gusts of 20.8mph at 11 PM. The humidity will be on the higher side, averaging about 76%, the maximum being 98% at 6 AM and 39% being its lowest at 2 PM. Barometric pressure is its highest of 29.94inHg at 8 AM, a lowest point of 29.78inHg at 6 PM with an avg 29.84inHg.
Napavine, WA Weather – 9-2 – Light Rain Shower
67° / 49°
Light Rain Shower
In Napavine, rain is likely with a high near 67°F and a low around 49°F. The chance of rain is 84% with an estimated 0.7in. Wind will be moderate, blowing around 15mph on average and gusts of 32.7mph at 5 AM. The humidity will be on the higher side, averaging about 79%, the maximum being 97% at 7 AM and 36% being its lowest at 5 PM. Barometric pressure is its highest of 29.92inHg at 11 PM, a lowest point of 29.71inHg at 5 AM with an avg 29.81inHg.

Currently

Sunny 76°F
29.97 inHg.
Barometer
45%
Humidity
W 18.4 mph
Wind
Sunny

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