St. Louis 2025 Storm Season: A Recap & Lessons

A look back at the 2025 storm season in the St. Louis metro — what happened, what the claim volume told us, and what 2026 homeowners should do differently.

The 2025 storm season reminded St. Louis homeowners that this region sits squarely in a zone where severe weather is not the exception — it's the annual expectation. Looking back at last season's events and what we observed on roofs across the metro is more than a recap: it's a diagnostic that informs what homeowners should do differently heading into 2026.

2025 Storm Events: A Season Overview

[PLACEHOLDER: verify exact storm dates, hail sizes, and wind speeds for St. Louis area events from the NOAA Storm Prediction Center (spc.noaa.gov) storm reports archive and NWS St. Louis severe weather archives before publishing. The following are placeholder event descriptions for structure only.]

Spring Hail Events — April and May 2025

[PLACEHOLDER: Insert confirmed hail event dates, affected zip codes, and reported hail sizes from NOAA SPC archive. Example placeholder: 'A late April 2025 storm system brought golf-ball-sized hail to parts of St. Louis County, generating significant insurance claim volume across the Chesterfield and Ballwin corridors.'] The spring window — April through early June — is historically the peak hail period for the St. Louis metro, as Gulf moisture drives supercell development across Missouri.

Summer Wind Events — August 2025 Derecho

[PLACEHOLDER: Verify the specific August 2025 derecho event from NOAA records — confirm dates, track, and wind speeds for the St. Louis metro. Example placeholder: 'An August 2025 derecho tracking northeast across the St. Louis area produced sustained straight-line wind damage across multiple counties, with roof and siding damage concentrated along the storm's path.'] Derechos differ from tornado damage in pattern: wind damage in a linear track versus the circular, concentrated destruction of a tornado touchdown. Understanding the difference matters for insurance documentation.

Fall Activity

[PLACEHOLDER: Verify any significant fall 2025 storm events affecting St. Louis from NOAA records.] Fall storm season in St. Louis often extends later than homeowners expect — October severe weather events are not uncommon. Roof systems that weathered spring and summer damage in a degraded state are the most vulnerable to fall events.

What the Claim Volume Told Us

Insurance claim activity across the St. Louis metro in 2025 reflected several patterns that we observed directly in the volume and nature of inspections Revolve conducted:

Documentation Made the Difference

Homeowners who had pre-storm inspection documentation — even a basic spring inspection report — moved through the claims process faster and with fewer disputes about pre-existing versus storm-caused damage. Adjusters can and do attribute damage to wear when there's no documentation establishing roof condition before the storm. A dated photo set and a written inspection report eliminate that ambiguity.

Older Roofs Showed Compounded Damage

Roofs aged 15 or more years — particularly those installed during the 1990s and early 2000s buildout of outer St. Louis County — sustained disproportionate damage in 2025 hail events. Granule-depleted shingles lose impact resistance significantly over time: a Class 4 impact-resistant shingle on a 2-year-old roof absorbs hail that would crack and expose the mat on a 20-year-old architectural shingle. Age multiplies the damage from any given storm event.

Full-Exterior Scoping Recovered More

Homeowners who had a full-exterior inspection — roof, siding, gutters, soffit, and fascia documented as a single scope — consistently received more complete initial insurance settlements than those who filed roof-only claims and later tried to add siding or gutter damage separately. Insurance adjusters work more efficiently with complete scopes, and the documentation of all damage at once reduces the back-and-forth of supplements.

What We Learned: Impact-Resistant Adoption

One of the clear trends from 2025 was an increase in homeowner interest in Class 4 impact-resistant shingles after experiencing or observing hail damage to standard architectural shingles in their neighborhoods. The math is straightforward: impact-resistant shingles cost 15–25% more per square than standard architectural, but they hold up under hail events that crack standard shingles, they often qualify for insurance premium discounts (verify with your carrier), and they reduce the frequency of damage claims — which matters for your claims history.

For homeowners replacing a storm-damaged roof in 2026, the upgrade to Class 4 impact resistance is worth running the numbers on. The premium discount alone sometimes closes half the cost gap within five years. Ask your insurer about the discount before your replacement is scoped.

What We Learned: Filing Promptly Matters

Missouri homeowners insurance policies typically have contractual claim-filing windows, though Missouri does not set a statutory maximum. Waiting more than six months after a storm event to file a claim invites adjuster scrutiny about whether the damage is storm-related or maintenance-deferred. The sooner a claim is documented and filed — with supporting inspection evidence — the cleaner the outcome. We saw multiple instances in 2025 where delayed filing complicated an otherwise straightforward storm damage claim.

2026 Outlook and Preparation

[PLACEHOLDER: Review NOAA's Climate Prediction Center seasonal outlook for the central U.S. for spring-summer 2026 to provide a factual basis for any storm season forecast language. Do not publish speculative storm predictions without a sourced basis.] The St. Louis metro's position in the central U.S. severe weather corridor means the 2026 storm season preparation question isn't 'will there be storms?' — it's 'how ready is your roof when they arrive?'

Three Things to Do Before Storm Season Peaks

First: schedule a spring inspection now. A professional inspection in April or May establishes your pre-storm baseline and catches any winter damage before storm season begins. Second: if your roof is older than 15 years, get a replacement estimate. Not a commitment — just the information. Knowing the number before a storm hits means you can make a clear-headed decision rather than a reactive one. Third: verify your insurance coverage. Know whether you have ACV or RCV coverage, know your deductible amount, and confirm you have contact information for your agent ready before a storm event.

Revolve Construction has been serving the St. Louis metro since 2008. We perform free storm damage inspections, document damage for insurance claims, and install roofing systems built for Missouri weather. Call (314) 400-8006 or schedule your spring inspection online.

Impact-Resistant Shingles: 2025 Performance Evidence

One of the clearest differentiators in 2025 damage outcomes — particularly in areas hit by larger hail — was the presence or absence of Class 4 impact-resistant shingles. Homes with standard architectural shingles installed in the 2010 to 2015 era showed widespread granule loss and exposed mat in moderate hail events. Adjacent homes with Class 4 IR shingles on the same block showed minor granule disturbance with no mat exposure in the same events. The visual difference on side-by-side inspections was striking. Class 4 products cost roughly $80 to $150 more per square than standard architectural equivalents — on a 25-square job, that is an upcharge of approximately $2,000 to $3,750 on a $12,000 to $15,000 project. For a product that performs meaningfully better in every hail event for the next 25 years, the math is favorable for most homeowners in our market.

Insurance Market Shifts Affecting St. Louis Homeowners in 2026

[PLACEHOLDER: Verify current Missouri and Illinois homeowners insurance market conditions — premium trends, carrier availability, and hail/wind deductible structure changes — with a licensed insurance agent or the Missouri DIFP before publishing this section. The following is placeholder structure only.] The homeowners insurance market in Missouri and Illinois has been shifting following several high-volume storm years. Some carriers have introduced wind and hail percentage deductibles — a percentage of the home's insured value rather than a flat dollar amount — which significantly increases out-of-pocket exposure for higher-value homes. Understanding your specific deductible structure before storm season, not when you are filing a claim, is important financial planning. Ask your insurance agent to review the hail and wind deductible terms on your current policy in plain terms.

Building a Storm Response Plan Before You Need It

The homeowners who handled 2025 storm events with the least stress and the best outcomes shared a common characteristic: they had a plan before the storm hit. That plan included a current spring inspection report on file, their insurance agent's direct number saved in their phone, knowledge of their deductible amount and policy type, a roofing contractor's emergency number saved, and a rough idea of what a roof replacement would cost if the inspection revealed it was needed. None of this requires significant time or money to set up. A 30-minute preparation exercise in April — inspection scheduled, insurance policy reviewed, contractor contact saved — dramatically changes how a June hail event gets handled for the better.