On Monday, July 27, 2026, a line of severe storms crossed DuPage County and left a very specific fingerprint on the western suburbs. The National Weather Service logged measured hail of 2.5 inches — roughly tennis-ball size — west-northwest of Westmont, along with 1.75-inch hail in Downers Grove and near Willowbrook. Those are not marginal numbers. One inch is broadly the threshold where asphalt shingles start taking real structural damage instead of cosmetic marks, and stones two and a half inches across fall hard enough to fracture shingle mats, split ridge caps, dent vents and flashing, and shred soft aluminum.
The same system was also a serious wind event. Gusts in the 60 to 80 mph range were reported across the Chicago area that day, with isolated readings higher than that, and the Weather Service's own event summary for July 27 covers damaging wind and flooding alongside the hail. That combination is the part most homeowners out here get wrong: hail damage and wind damage are inspected, documented and paid differently, and a single roof in Westmont or Willowbrook may well have taken both in the same hour. Seven weeks later, most of it is still sitting up there unrecorded.
What the National Weather Service reported on July 27, 2026
Storm reports are not estimates from a news desk — they are measured or trained-spotter reports tied to a location. For DuPage County, the ones that matter to a roof are these:
- 2.5 inches west-northwest of Westmont — the largest measured stone in the immediate area, about the diameter of a tennis ball.
- 1.75 inches in Downers Grove — golf-ball-plus, comfortably past the damage threshold for three-tab and architectural shingles alike.
- 1.75 inches near Willowbrook — same size class, on the Willowbrook and Burr Ridge side of I-55 and Route 83.
- Widespread damaging wind across the Chicago metro, reported in the 60 to 80 mph range, with higher isolated gusts and confirmed tornado damage elsewhere in the area that day.
Hail falls in narrow, ragged swaths, not in neat circles. A 2.5-inch core west-northwest of Westmont means the heaviest stones tracked a corridor only a few blocks wide in places, and a house three streets off that line may have taken nothing worse than 1-inch stones while the next block over lost half its granule surface. That is exactly why a blanket "our neighborhood got hit" or "our neighborhood was fine" is the wrong way to decide whether to look.
What 2.5-inch hail actually does to an asphalt roof
Hail damage arrives in three forms, and only one of them is visible from your driveway.
- Granule loss. The colored granules on a shingle are its sunscreen. Hail knocks them loose in clusters, exposing the asphalt mat to ultraviolet light. The shingle does not leak that week — it ages three to five times faster from that day forward. The tell is granule sediment in gutters and at downspout splash blocks.
- Mat bruising. A large stone can fracture the fiberglass mat underneath without breaking the surface. It feels like a soft spot, like pressing a bruise on fruit. It is invisible from the ground and from a photo taken from a ladder, and it is the single most commonly missed — and most commonly disputed — form of hail damage.
- Broken wind seal. Every shingle is glued to the one below it by a heat-activated adhesive strip. Hail impact and 60-to-80 mph wind both break that bond. Once it is broken the shingle still looks perfect and lies flat on a calm day, then lifts in the next storm and lets water underneath.
Then there is the collateral damage, which is the fastest way to confirm a hail event happened at your address at all: dents in aluminum gutter aprons and downspouts, bruised or split vent hoods, dinged furnace and bath fan caps, chipped ridge caps, damaged siding on the storm-facing elevation, and pockmarked air conditioner condenser fins. Soft metals record hail like a notebook. If your condenser fins on the west or northwest side are stippled and your gutters have crisp dents in the top face, hail of consequence hit that property.
Hail damage or wind damage? The distinction decides your claim
Because July 27 was both a hail and a wind event, the diagnosis matters. The two leave different signatures:
- Hail leaves randomly scattered, roughly circular impact marks with fresh black asphalt showing where granules were driven off — on all slopes, but heaviest on the side facing the storm's approach.
- Wind leaves directional damage: creased shingles that were bent back and laid down again, missing tabs along rakes and ridges, lifted or unsealed courses on the windward slope, and debris impact marks.
Both are covered perils under a standard Illinois homeowners policy, but they are documented differently, and an adjuster who sees a wind-only claim on a roof that also has hail bruising may approve a repair where a replacement was warranted. This is one of the reasons a written, photographed, slope-by-slope inspection beats a five-minute look from a ladder.
What you can safely check from the ground in Westmont, Downers Grove and Willowbrook
Do not get on the roof. Wet or hail-stripped shingles are slick, and a fall costs more than any roof. From the ground and from inside, in Westmont (60559), Downers Grove (60515 and 60516), Willowbrook (60527), Hinsdale (60521), Clarendon Hills (60514) and Darien (60561), look for:
- Granule sediment in gutters, at downspout outlets, and in flower beds below the eaves.
- Crisp dents in the top face of gutters, on downspouts, and on aluminum fascia wraps.
- Bruised, split or knocked-sideways vent hoods, furnace caps and bath fan caps on the roof plane.
- Stippled or flattened fins on the outdoor air conditioner unit, especially the storm-facing side.
- Shingle tabs missing or lying crooked along the ridge and the rake edges.
- Inside: fresh staining at ceiling corners, around bathroom fans, at chimney chases, and in the attic on the underside of the deck after the next hard rain.
Two and a half inch hail hit Westmont in July. You won't see that damage from the ground. My crew will check your roof for free. Call 331-204-4910. If your ceiling's sagging down or your roof goes to the ground, call John Beal.
Seven weeks later: what to do now
A July 27 date of loss is still a live claim today, but the clock is real. Illinois homeowner policies commonly require prompt notice of a loss and set a deadline measured from the date of loss — often one or two years — not from the day you noticed the ceiling stain. The date that matters is July 27, 2026. Here is the order of operations that protects you:
- Get a written inspection before you call the carrier. A slope-by-slope report with dated photos tells you whether there is a claim worth filing. Filing blind on a roof with no damage is how people end up with a claim history and nothing to show for it.
- Photograph the collateral now. Gutters, downspouts, vents, siding, the condenser. That evidence establishes the hail event at your address independent of the shingles.
- Keep the storm date in writing. The Weather Service measured 2.5-inch hail near Westmont and 1.75-inch hail in Downers Grove and Willowbrook on July 27, 2026 — the same event your neighbors are filing under.
- Do not sign anything in the driveway. Not a contingency agreement, not an assignment of benefits, not a "we'll just get you on the schedule" form. A legitimate contractor will hand you a written scope and leave without a signature.
- Ask for the Illinois roofing license number. Illinois licenses roofing contractors at the state level. A company working DuPage County without one is not a company you want on your roof or on your claim.
Insurance, deductibles, and what Illinois law actually says
Two policy terms decide what you are paid. Replacement cost value (RCV) pays what it costs to put the roof back today, usually in two checks — an initial payment, then the withheld depreciation once the work is complete and invoiced. Actual cash value (ACV) pays the depreciated value of a 14-year-old roof and stops there, which is why the same storm produces wildly different settlements on the same street. Read which one your policy carries before you argue about scope, and check for a separate wind and hail deductible, often a percentage of the dwelling amount rather than a flat figure.
And the part the storm-chasers will not tell you: in Illinois, as in Missouri, a contractor cannot lawfully pay, waive, rebate or absorb your insurance deductible. If someone offers to — "we'll eat the deductible," "we'll make it disappear" — understand what they are telling you. They will recover that money by inflating the scope, cutting the material, or skipping the labor you are paying for. Your deductible is your share of the loss, and it is the one line item nobody can make vanish.
Hail companies and roofing contractors are not the same thing
After a 2.5-inch hail event, the western suburbs fill up with out-of-area crews. Some are good. Many are storm-chasing sales operations that follow hail swaths, subcontract the labor to whoever is cheapest that week, collect the insurance proceeds, and are unreachable by the time the first leak shows up. The difference is not in the pitch — both pitches are excellent. It is in the paperwork and the phone number:
- Who does the work? Own crews, or a subcontractor you never meet? Ask directly, and ask who supervises the tear-off.
- Who honors the warranty? A manufacturer's material warranty is not a workmanship warranty. Ask for the workmanship term in writing and ask how long the company has been at the same address.
- Will the phone be answered in 2029? A leak at year three is the real test. Look for a company with a history and a permanent location, not a truck with out-of-state plates and a magnetic door sign.
- Is the license real? Illinois state roofing license, proof of general liability and workers' compensation, and a physical business address.
- Is the estimate a scope or a signature trap? You should be able to read a line-item scope, keep it, and get a second opinion on it without pressure.
Why a family-run contractor matters after a storm like this
John Beal Roofing has been family-owned and operated since 1947, and it is now in its third generation. We run our own crews across the Midwest, we back installations with a limited lifetime workmanship warranty, and our phone is answered 24 hours a day — including at 2 a.m. when a tarp is what stands between a storm and your drywall. We work in Illinois every week, and our Chicagoland line is 331-204-4910. If you are in Westmont, Downers Grove, Willowbrook or anywhere in DuPage County and you want a straight answer about the July 27 hail on your roof, we will inspect it, photograph it, and hand you a written report. No charge, and no obligation to file anything.
Frequently asked questions about the July 27, 2026 Westmont hail storm
How big was the hail in Westmont on July 27, 2026?
The National Weather Service logged a measured report of 2.5-inch hail — about tennis-ball size — west-northwest of Westmont, Illinois on July 27, 2026, with 1.75-inch hail measured in Downers Grove and near Willowbrook. Hail at or above one inch is generally enough to damage asphalt shingles.
Is it too late to file a hail claim for the July 27 storm?
Almost certainly not. Illinois homeowner policies typically require prompt notice and set a filing or suit deadline measured in years from the date of loss, so a July 27, 2026 event is normally still claimable. The safest sequence is to get a written, photographed inspection first, then file with your date of loss documented as July 27, 2026.
How do I tell hail damage from wind damage on my roof?
Hail leaves scattered, roughly circular impacts with fresh black asphalt where granules were knocked off, plus dents in gutters, vents and air conditioner fins. Wind leaves directional damage — creased shingles, missing tabs along ridges and rake edges, and unsealed courses on the windward slope. July 27 produced both across DuPage County, so many roofs show both signatures.
Can a roofing company pay my insurance deductible?
No. In Illinois a contractor cannot lawfully pay, waive or rebate your insurance deductible. Any company offering to is planning to recover that money somewhere in your scope, your materials or your labor.
How do I choose between the hail companies knocking in Downers Grove and Willowbrook?
Ask four questions: do you use your own crews, what is your written workmanship warranty, what is your Illinois roofing license number, and what is your permanent local business address. Then keep the line-item scope and get a second opinion before you sign anything. A legitimate contractor will leave the estimate with you without a signature.