Dress-Up Raincoats

Make a rainy day feel like Halloween by dressing your grandchildren in a costume-like slicker. These raincoats, from Western Chief Kids, range from cowboys and pink ponies to frogs and dinosaurs, adding some much-needed pretend time to stormy weather.

Price: $38
Sizes: 2T-6X
Available at: WesternChief.com

Character Umbrellas

Sure, you think schlepping an umbrella around is a minor annoyance, but it's fun for your grandkids — especially when they have their own friendly, anthropomorphic version to carry. Choose an umbrella based on your grandchild's favorite animal, and he or she will be giddy to get out into the rain.

Price: $13
Sizes: one size
Available at: RainyDayKids.com

Matching Rain Wear

Rained-in divas who prefer full, cohesive ensembles will love pop-icon Madonna's English Roses Polka Dot collection. Dressed top to toe in these bold and cheery colors will make your granddaughter look like spring personified.

Price: $17-$40
Sizes: 6X-9/10 for the coat, 13-4 for rainboots
Available at: Yellow-Turtle.com

Big-Boy Raincoats

Grandsons just old enough to feel silly in a raincoat with puppy ears attached will love these slightly more mature options, reflecting their big-boy interests, such as sailboats and tractors. Gingham, plaid, and stoic stripes are also available for the truly refined.

Price: $55
Sizes: 12mos to 4T
Available at: CocoBonBons.com

Well-Appointed Wellies

Soaking-wet shoes are always a hassle, even in the warmest spring and summer months. Keep your grandchildren's feet dry in serious style with these cute rubber boots. Styles range from frilly ribboned pink to a "treasure hunt" theme, complete with skull and crossbones.

Price: $30
Sizes: K9-K4
Available at: JCrew.com, click here for girls, and here for boys

Designer Duds

Whether your tween-aged fashionista prefers classic and high-end, or just plain trendy and expensive, she'll love being seen in sized-down versions of designer rain gear. Both Burberry and Juicy Couture offer appropriately pricey outerwear for budding fashion plates.

Price: $310 for Burberry Girl's Trench Coat; $198 for Juicy Couture Patent Raincoat
Sizes: 7-12
Available at: SaksFifthAvenue.com and Shop.Nordstom.com, respectively.