Casual fall wedding guest dress ideas in 2025 are all about capturing the season's cozy charm with effortless, layered looks that blend comfort and style. As October's golden leaves and crisp air set the scene for romantic ceremonies, your outfit should feel relaxed yet polished—think midi dresses with cardigans, floral skirts with boots, or sweater dresses that transition from day to night. These ideas are perfect for rustic barns, vineyard vows, or backyard receptions, flattering all body types with inclusive sizing up to 24. Drawing from 2025 trends at New York Fashion Week and insights from Brides, The Knot, and Who What Wear, we've curated 10 casual fall wedding guest dress ideas that are budget-friendly ($50-$200), sustainable, and shoppable at Nordstrom, Lulus, and ASOS. Inspired by sources like Green Wedding Shoes and Harper’s Bazaar, these looks incorporate earthy tones and textured fabrics for a chic, autumnal vibe. Let’s explore these 10 casual fall wedding guest dress ideas to make your 2025 guest appearance unforgettable at 12:15 PM +07 on October 16, 2025!
1. Rust Midi Dress with Denim Jacket

Inspired by Brides, a rust midi is boho-perfect for vineyard ceremonies.
Design Details: Rust linen midi dress with spaghetti straps and tiered skirt. Sizes 0-24.
How to Style: Layer with a light denim jacket ($60, Levi’s). Add tan ankle boots ($70, Nordstrom) and a woven crossbody ($30, Target).
Why It’s Casual & Cozy: Linen flows comfortably, denim adds relaxed edge. Sustainable linen.
Cost: $160. Where to Shop: ASOS, Levi’s, Nordstrom, Target. CTA: Shop this rust midi for your fall wedding now!
2. Sage Green Blouse and Wide-Leg Jeans

The Knot’s sage blouse is fresh for daytime receptions.
Design Details: Sage silk blouse with tie-neck detail. Sizes XS-3XL.
How to Style: Pair with olive wide-leg jeans ($50, Zara). Add loafers ($50, DSW) and a gold necklace ($20, H&M).
Why It’s Casual & Cozy: Sage’s softness balances jeans’ casualness.
Cost: $120. Where to Shop: Zara, DSW, H&M. CTA: Blouse your jeans for easy elegance today!
3. Mustard Yellow Sweater Dress with Scarf

Who What Wear’s sweater dress is cozy for barn weddings.
Design Details: Mustard knit sweater dress with mock neck. Sizes 0-28.
How to Style: Wrap with a plaid wool scarf ($20, Target). Add ankle boots ($60, Aldo) and gold hoops ($15, Amazon).
Why It’s Casual & Cozy: Knit’s warmth suits fall chill, scarf adds texture.
Cost: $95. Where to Shop: H&M, Target, Aldo, Amazon. CTA: Scarf your sweater dress now!
4. Burgundy Wrap Blouse and Midi Skirt

Harper’s Bazaar’s wrap blouse is romantic for vineyard toasts.
Design Details: Burgundy chiffon wrap blouse with tie sleeves. Sizes 0-24.
How to Style: Pair with a cream pleated midi skirt ($40, Lulus). Add low wedges ($50, Nine West) and a gold bracelet ($10, Target).
Why It’s Casual & Cozy: Wrap’s adjustability flatters, chiffon flows for movement.
Cost: $100. Where to Shop: Lulus, Nine West, Target. CTA: Wrap your blouse for vineyard vibes today!
5. Olive Green Cardigan and Denim Shirt

The Every Girl’s cardigan layer is relaxed for daytime events.
Design Details: Olive green cotton cardigan with button front. Sizes XS-3XL.
How to Style: Layer over a denim shirt ($25, Levi’s) and high-waisted jeans ($40, H&M). Add loafers ($40, G.H. Bass).
Why It’s Casual & Cozy: Cardigan’s softness pairs with denim’s ease.
Cost: $105. Where to Shop: Levi’s, H&M, G.H. Bass. CTA: Layer your cardigan for cozy casual now!
6. Terracotta Tunic and Leggings

Vogue’s tunic look is comfortable for casual receptions.
Design Details: Terracotta linen tunic with long sleeves. Sizes 0-28.
How to Style: Pair with black leggings ($20, Old Navy). Add ankle boots ($50, Aldo) and a gold necklace ($15, Target).
Why It’s Casual & Cozy: Tunic’s flow is breezy, leggings are flexible.
Cost: $85. Where to Shop: Old Navy, Aldo, Target. CTA: Tunic your leggings for relaxed style today!
7. Plum Blouse and Corduroy Pants

Marie Claire’s corduroy revival is textured for barn dances.
Design Details: Plum silk blouse with puff sleeves. Sizes 0-24.
How to Style: Pair with rust corduroy wide-leg pants ($50, Urban Outfitters). Add loafers ($30, DSW) and a gold bracelet ($10, H&M).
Why It’s Casual & Cozy: Corduroy’s warmth complements plum’s richness.
Cost: $90. Where to Shop: Urban Outfitters, DSW, H&M. CTA: Pair your blouse with corduroy now!
8. Sage Green Wrap Top and Midi Dress

Who What Wear’s wrap top is versatile for daytime ceremonies.
Design Details: Sage green wrap top with tie waist. Sizes 0-24.
How to Style: Layer over a black midi dress ($40, Zara). Add ankle boots ($50, Aldo) and a gold clutch ($20, ASOS).
Why It’s Casual & Cozy: Wrap’s adjustability flatters, sage freshens for fall.
Cost: $110. Where to Shop: Zara, Aldo, ASOS. CTA: Wrap your top for vineyard elegance today!
9. Mustard Yellow Cardigan and Jeans

The Every Girl’s cardigan look is practical for fluctuating October weather.
Design Details: Mustard yellow knit cardigan with button front. Sizes XS-3XL.
How to Style: Layer over a white tee ($15, H&M) and high-waisted jeans ($35, Levi’s). Add Chelsea boots ($50, Clarks).
Why It’s Casual & Cozy: Cardigan’s warmth suits fall chill.
Cost: $100. Where to Shop: H&M, Levi’s, Clarks. CTA: Cardigan your jeans for cozy casual now!
10. Burgundy Tunic and Leggings

Harper’s Bazaar’s tunic leggings combo is comfortable for casual receptions.
Design Details: Burgundy velvet tunic with long sleeves. Sizes 0-24.
How to Style: Pair with black leggings ($20, Old Navy). Add ankle boots ($40, Steve Madden) and a scarf ($15, ASOS).
Why It’s Casual & Cozy: Tunic’s flow and leggings’ comfort suit relaxed fall events.
Cost: $75. Where to Shop: Old Navy, Steve Madden, ASOS. CTA: Tunic your leggings for ease today!
Conclusion: Style Your Casual Fall Wedding Guest Dress
These 10 casual fall wedding guest dress ideas for 2025, from rust midis to burgundy tunics, bring cozy elegance to your autumn wedding. Budget-friendly, sustainable, and perfect for the season, they’re a must-try for guests. Ready to style? Shop at ASOS, Lulus, or Nordstrom, browse Pinterest for inspiration, or thrift your look now. Don’t wait—create your casual fall wedding guest dress today and make 2025 a stylish autumn!