Where Clouds May Block the Fireworks

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Fireworks Index · July 4, 2026

Shows likely to fire on time — but under a sky that could swallow the bursts.

Shows ranked

25 of 1,667

#1 Fireworks Index

0 — Rough

Forecast source

Tomorrow.io Weather API

1,667

shows in the full corpus

shows ranked on this board

#1 Fireworks Index

#10 score on this board

What this ranks

How these shows are chosen

Ranked by the Burst-Ceiling gate (cloud cover and ceiling height). A low deck near burst height hides the show even with zero rain.

Fireworks Index · Where Clouds May Block the Fireworks

Rankings

Seward 4th of July Festival

Seward Boat Harbor / Resurrection Bay, AK · Fireworks Index 0 (Rough) · Cloud / ceiling: 100% · 0 ft

Rank	Show / Venue	Cloud / ceiling	Index	Band
1	Seward 4th of July Festival Seward Boat Harbor / Resurrection Bay, AK	100% · 0 ft	0	Rough
2	Hampton Beach Fireworks Hampton Beach State Park, NH	100% · 0 ft	0	Rough
3	Nantucket Fireworks Jetties Beach, MA	100% · 0 ft	0	Rough
4	Winthrop Fireworks Coughlin Park, MA	100% · 0 ft	0	Rough
5	Amesbury Fireworks Woodsom Farm, 223 Lions Mouth Road, MA	100% · 0 ft	0	Rough
6	Gloucester Fireworks Stage Fort Park, 1 Hough Ave., MA	100% · 0 ft	0	Rough
7	Lynn Fireworks Barge near Red Rock, 76 Marine Street, MA	100% · 0 ft	0	Rough
8	Manchester-by-the-Sea Fireworks Barge off Singing Beach, MA	100% · 0 ft	0	Rough
9	Swampscott Fireworks Nahant Bay, MA	100% · 0 ft	0	Rough
10	Morgantown 4th of July Celebration Hazel Ruby McQuain Amphitheatre, Monongahela River, WV	86% · 0 ft	28	Rough
11	Beckley 4th of July Fireworks Beckley-Raleigh County Convention Center area, WV	78% · 0 ft	28	Rough
12	Essex Connecticut River Independence Day Essex Town Center / Connecticut River Museum, CT	100% · 528 ft	3	Rough
13	Waterbury Independence Day Fireworks Holy Land USA / Pine Hill, CT	100% · 528 ft	3	Rough
14	Beverly Fireworks Barge off West Beach, 121 West St., MA	100% · 528 ft	2	Rough
15	Tamworth Fourth of July Fireworks Tamworth, NH	100% · 528 ft	5	Rough
16	Old Orchard Beach Fireworks Old Orchard Beach Pier, ME	100% · 528 ft	5	Rough
17	Camden Fourth of July Fireworks Camden Harbor / Curtis Island, ME	100% · 528 ft	5	Rough
18	Kennebunk Fireworks Gooch's Beach, ME	100% · 528 ft	5	Rough
19	Parkersburg Independence Day Fireworks Fort Boreman Park, Ohio River, WV	69% · 0 ft	37	Rough
20	Charleston Sternwheel Regatta Drone Show & Fireworks Haddad Riverfront Park, Kanawha River, WV	75% · 0 ft	36	Rough
21	Osterville Fireworks 2 Barges in Tims Cove, Cove Lane, MA	73% · 0 ft	9	Rough
22	Whittier Midnight Fireworks Whittier Harbor, AK	73% · 0 ft	9	Rough
23	Sanford Fireworks Number 1 Pond, ME	77% · 528 ft	9	Rough
24	Six Flags St. Louis July 4th Fest Six Flags St. Louis, MO	72% · 0 ft	17	Rough
25	Eureka Independence Day Celebration Drewel Park, MO	72% · 0 ft	17	Rough

Scoring

How the Fireworks Index works

0–100. The Fireworks Index is the expected share of a perfect show: it multiplies whether the show fires at all (launch gate) by how much of an ideal display you would actually see (sky quality, smoke clearance, darkness). A score of 80 means you’d experience about 80% of a theoretically perfect fireworks display given the forecast conditions.

Four gates feed the score: Sky (cloud cover and ceiling — can you see the shells?), Smoke (air clearance for visibility), Dark (how dark the sky is at show time, after sunset), and Launch (go/delay based on wind, lightning risk, and fire danger). Scores are computed from the Tomorrow.io forecast for the exact show window at each venue’s location.

Sources. Show schedule: NFPA 1123 corpus (1,667 verified shows). Fire risk: Keetch–Byram Drought Index. Sunset timing: NOAA Solar Calculator. Forecast: Tomorrow.io Weather API.

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Tomorrow.io · Weather Intelligence
Fireworks Index · July 4, 2026

Computed from the live Tomorrow.io forecast for each show’s event window. Every score is reproducible from the public forecast API. Computed from the live Tomorrow.io forecast pulled for the event window.