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Preston, WA Weather Tomorrow

Check the latest weather forecast for Preston tomorrow and over the next 5 days with precipitation probability, daily and nightly weather conditions, high and low temperature trends, sunrise and sunset information, sky cover, wind speed, wind direction, and wind chill for the Preston area and around King county, Washington.
Updated: Sat Oct 24th 2026 12:30 PM PDT
Preston, WA Weather – 10-24 – Overcast
57° / 32°
Overcast
Overcast is in the forecast for Preston, with a high of 57°F and a low of 32°F. There might be light rainfall having a 12% chance. Winds will be light at 6mph and gusts of 12.8mph at 10 PM. The humidity will be on the higher side, averaging about 64%, the maximum being 71% at 8 PM and 34% being its lowest at 1 PM. Barometric pressure is its highest of 30.12inHg at 3 PM, a lowest point of 29.98inHg at 11 PM with an avg 30.06inHg.
Preston, WA Weather – 10-25 – Scattered Showers
52° / 38°

Weather Tomorrow

Scattered Showers
On and off showers are set to occur in Preston, with a high of 52°F and a low of 38°F. Rainfall predicted to have a 65% chance with an estimated 0.06in. Winds will be light at 6mph and gusts of 13.8mph at 8 PM. The humidity will be on the higher side, averaging about 70%, the maximum being 82% at 8 PM and 55% being its lowest at 12 AM. Barometric pressure is its highest of 30.05inHg at 12 PM, a lowest point of 29.95inHg at 5 AM with an avg 30inHg.
Preston, WA Weather – 10-26 – Cloudy
53° / 33°
Cloudy
Highs will reach 53°F with lows near 33°F in Preston, where cloudy skies are. Rainfall predicted to have a 60% chance with an estimated 0.06in. Winds will be light at 5mph and gusts of 13.9mph at 9 PM. The humidity will be on the higher side, averaging about 74%, the maximum being 91% at 11 PM and 58% being its lowest at 10 AM. Barometric pressure is its highest of 30.06inHg at 11 PM, a lowest point of 29.97inHg at 2 AM with an avg 30.03inHg.
Preston, WA Weather – 10-27 – Scattered Showers
52° / 38°
Scattered Showers
In Preston, passing showers are likely with a high near 52°F and a low around 38°F. The chance of rain is 77% with an estimated 0.11in. Winds will be light at 6mph and gusts of 15.1mph at 5 PM. High humidity with average of 83% is anticipated, the maximum being 94% at 11 PM and 63% being its lowest at 3 PM. Barometric pressure is its highest of 30.06inHg at 4 AM, a lowest point of 30.01inHg at 5 PM with an avg 30.04inHg.
Preston, WA Weather – 10-28 – Light Rain Shower
47° / 36°
Light Rain Shower
Preston could see rain showers with daytime highs of 47°F and nighttime lows near 36°F. The chance of rain is 93% with an estimated 0.61in. Winds will be light at 6mph and gusts of 14.3mph at 2 AM. High humidity with average of 94% is anticipated, the maximum being 97% at 8 AM and 86% being its lowest at 1 PM. Barometric pressure is its highest of 30.01inHg at 12 AM, a lowest point of 29.92inHg at 11 PM with an avg 29.97inHg.
Preston, WA Weather – 10-29 – Light Rain Shower
43° / 35°
Light Rain Shower
Highs will reach 43°F with lows near 35°F in Preston, where rain is. The chance of rain is 93% with an estimated 0.36in. Winds will be light at 5mph and gusts of 9.4mph at 8 AM. High humidity with average of 97% is anticipated, the maximum being 98% at 9 PM and 95% being its lowest at 2 PM. Barometric pressure is its highest of 29.97inHg at 3 AM, a lowest point of 29.89inHg at 5 PM with an avg 29.92inHg.

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