Key West Weather This Weekend — What to Do When It's 90°F

Key West looks like 90°F this weekend — a solid window for beach. Here's the forecast and what to do with it.

By Travel With YouGee

Today through Sunday

Key West, Florida

°F · Live via Google Weather

Today

88°F/ 84°F

Sunny

85% chance · 0.59 in

Thu

90°F/ 85°F

Sunny

20% chance · 0.01 in

Fri

90°F/ 85°F

Scattered thunderstorms

45% chance · 0.07 in

Sat

89°F/ 84°F

Scattered thunderstorms

35% chance · 0.08 in

Sun

89°F/ 84°F

Scattered thunderstorms

45% chance · 0.08 in

If you're deciding on Key West for 2026-08-22 – 2026-08-23, start with the numbers, then the plan.

Should you plan around Key West's forecast this weekend?

Weather watch

Treat the numbers as the story for Key West: temperature band and rain risk, then decide if the trip is on.

Key West, Florida

Weekend air in Key West sits near 90°F / 85°F, plus only light rain on the books (~0.07 in) — enough to decide whether the trip is on.

What matters isn’t whether Key West is famous — it’s whether 2026-08-22 – 2026-08-23 supports the outdoor time you want (warm shore air and lighter rain).

If the numbers still look good by Friday, lock the plan around 90°F — not a vague “nice weather somewhere.”

Things to do

The Hemingway Home and Museum4.6Visitors come to see Hemingway's studio, garden & 6-toed felines that may be descendants of his cat.

Rain contingency

Rain contingency2
  • Daytime highs near 90°F — prioritize sun protection, breathable clothes, and water.
  • Strong sun is likely this week — SPF 30+ (SPF 50+ if you burn easily) is recommended.

FAQ — trip planning around weather

Should you plan around Key West's forecast this weekend?

Key West is looking at about 90°F with 0.07" rain on the weekend outlook — use that as the planning anchor, then build the itinerary around the local picks above.

How can I plan a trip based on weather?

Start with the forecast you want, shortlist places that match, then build the itinerary. That’s what YouGee does interactively — this guide is a snapshot of one decision.

What are the best vacation planning websites for weather?

Most sites start with a destination. These guides start with the weather you want, then show places that fit. See about these guides.

Keep planning


Updated August 17, 2026. Not a substitute for local advisories.

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