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Thornton, WA Weather Forecast

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Thornton, WA Weather Forecast

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Thornton WA weather - Mostly Cloudy - 46°F
Mostly Cloudy
46°F
Updated 8:37 pm
Feels Like 42°F
Humidity 53%
Wind N 0 mph
Barometer  30.24 in
Dew Point 30°F
Thornton WA weather - Mostly Cloudy - 8°C
Mostly Cloudy
8°C
Updated 8:37 pm
Feels Like 6°C
Humidity 53%
Wind N 0 km/h
Barometer  102.4 kPa
Dew Point -1°C
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Thornton Weather Forecast

TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SUNDAY MONDAY MONDAY NIGHT TUESDAY
Thornton, WA Weather - Tonight Mostly Clear Thornton, WA Weather - Wednesday Clearing Thornton, WA Weather - Wednesday Night Mostly Clear Thornton, WA Weather - Thursday Sunny Thornton, WA Weather - Thursday Night Mostly Clear Thornton, WA Weather - Friday Mostly Clear Thornton, WA Weather - Friday Night Mostly Clear Thornton, WA Weather - Saturday Partly Cloudy Thornton, WA Weather - Sunday Partly Cloudy Thornton, WA Weather - Monday Chance Of Showers Thornton, WA Weather - Monday Night Chance Of Showers Thornton, WA Weather - Tuesday Chance Of Showers
Mostly Clear Clearing Mostly Clear Sunny Mostly Clear Mostly Clear Mostly Clear Partly Cloudy Partly Cloudy Chance of Showers Chance of Showers Chance of Showers
Lo: 35°FLo: 2°C Hi: 65°FHi: 18°C
 Lo: 36°FLo: 2°C Hi: 66°FHi: 19°C
 Lo: 43°FLo: 6°C Hi: 75°FHi: 24°C
Lo: 45°FLo: 7°C		 Hi: 75°FHi: 24°C
Lo: 45°FLo: 7°C		 Hi: 65°FHi: 18°C
Lo: 49°FLo: 9°C		 Hi: 65°FHi: 18°C
Lo: 49°FLo: 9°C		 Hi: 56°FHi: 13°C
 Lo: 37°FLo: 3°C Hi: 55°FHi: 13°C
POP: 20% POP: 50% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 209 PM PDT Tue Oct 13 2026 Thornton, WA Weather - WeatherWorld.com

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Thornton Forecast Discussion

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Issued: 448 PM PDT Tue Oct 13 2026

Key Messages

  • Dry conditions and light winds continue through Friday.
  • Temperatures trend warmer over the next few days, peaking on Friday in the upper 60s to mid 70s.
  • Mountain shower chances, gusty westerly winds, and cooler temperatures return for the weekend.

Discussion

... Tuesday night through Friday: A weak shortwave tracking through northern British Columbia temporarily flattens the ridge of high pressure over the Inland Northwest Tuesday night into Wednesday, bringing increased cloud cover re...