10-Day Weather Forecast for Castro Valley, California 94546 - The Weather Channel | weather.com

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Daily ForecastCastro Valley, California 94546· as of 6:23 PM UTC

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Spring Ushers In Extreme Pollen Across Deep South, Southeast

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Historic March Heat Wave Smashed US And Monthly Records In Over 170 Cities, From California To Pennsylvania

Deadly Runway Collision At New York's LaGuardia Airport

Hawaii Flooding Forces Actor Jason Momoa To Evacuate

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Home & Garden

Don’t Make These Mistakes When Planting Your Spring Garden

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When To Worry About Mold Growing In Your Home

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Get Ahead For Spring With Essential Winter Garden Tips

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Why Your Home's Air Might Be More Polluted Than Outdoors

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On The Move

And The Best State For An Adventure Vacation Is ...

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California Wildflower Superblooms Are Back In 2026

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3 Big Changes Coming To National Parks In 2026

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‘Rare And Remarkable’: Lake Superior Ice Caves Reopen

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Spring Is Here

Leaves Increasing On Trees In The South, Pollen On The Rise

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When Are The Average Last Freezes In The US?

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Allergy Season Grows Longer – Especially In These Places

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Record Warmth Is Almost Tripling Record Cold This Year

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We Love Critters

Big Bear Bald Eagle Protecting Their Eggs During Windstorm Is the Most Inspiring Hero

Dog Gives Dad the Cold Shoulder After Making Him Wear a Rain Coat, and We’re Cracking Up

Excited Porcupines Jump up and Down With Excitement Being Let Back Outside After Snowstorm

Dad’s Running Commentary While Rescuing His Pup From 20 Inches of Snow Is Pure Comedy

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Editor's Pick

What Happens When A Frisbee Team Hits The Slopes

When a Frisbee team takes a ski trip, you know things are about to get really fun on the slopes. Watch as they pull off some sick tricks while speeding down a mountain in Austria. They even got folks on the ski lift involved in the action.

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Sun & Moon

Chickpeas Can Be Grown In Space, Researchers Say

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Stay Safe

Dangerous Heat Threshold: Study Reveals 85-Degree Heat Index Triggers Sharp Rise In Workplace Injuries

Product Reviews & Deals

Best Electric Spin Scrubbers For Effortless Spring Cleaning

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