Belvidere Hail — Storm History & NOAA Data for Belvidere, IL

Data current as of 2026-10-16 · Sourced from NOAA Storm Events

Over the past five years, the National Oceanic and Atmospheric Administration has recorded 108 hail storms within 25 miles of Belvidere, IL. Of those, 104 produced hail at least quarter-size — the threshold most insurance carriers consider potentially damaging to asphalt shingles. The largest reported hail in this window was egg-sized, which can fracture shingle mat and dent metal flashing on contact. 2026 was the most active year on record locally, with 59 documented hail events.

Check Hail History for a Specific Address in Belvidere

Hail Severity Breakdown — Belvidere Area (Last 5 Years)

SeverityCountWhat it means for roofs
Destructive4 eventsEgg-size, expect mat fractures and gutter damage
Severe22 eventsPing pong-size, granule loss and bruising common
Significant78 eventsQuarter-size, the standard insurance damage threshold
Moderate4 eventsMarble-size, possible cosmetic damage

Belvidere Hail Storms by Year

YearReported Hail Events Within 25 mi
202659 events
202515 events
202412 events
202316 events
20226 events

2026 was the busiest hail year on record locally for Belvidere, with 59 documented events inside the 25-mile radius. Storm activity in Belvidere typically peaks in spring and early summer, when the jet stream pushes Gulf moisture into the area and supercell thunderstorms become more frequent.

Notable Recent Belvidere Hail Storms

Recent Hail Events Near Belvidere

DateLocationSeveritySizeNOAA Comments
2026-08-21 2 N Machesney Park, IL Moderate 0.75" Report from mPING: Dime (0.75 in.).
2026-08-21 1 N Machesney Park, IL Significant 1.00" Photo shared to email service account showing hailstones ranging in size between dime to quarter -- 0.5 to 1.0 inch -- in diameter. Time estimated by radar.
2026-08-21 3 E Sycamore, IL Significant 1.00" Report from mPING: Quarter (1.00 in.).
2026-08-10 3 SSE Fontana-on-Geneva, WI Significant 1.00" —
2026-06-24 MALTA, IL Significant 1.00" A photo showed multiple hail stones of nickel size with one stone of quarter size near Rich Road and Schafer Road.
2026-06-24 3 N Malta, IL Significant 1.00" Photo shared to social media shows multiple hail stones of nickel size and one stone of quarter size near Rich Road and Schafer Road. Time estimated by radar.
2026-06-24 BYRON, IL Significant 1.00" —
2026-06-24 2 NNE Byron, IL Significant 1.00" Quarter size hail near Byron. Relayed via amateur radio. Time estimated by radar.
2026-06-24 HUNTLEY, IL Significant 1.00" —
2026-06-24 2 E Huntley, IL Severe 1.50" Public report of 1.5 inch hail near Huntly. Relayed via mping.
2026-06-24 HUNTLEY, IL Severe 1.50" —
2026-06-24 1 NE Huntley, IL Significant 1.00" —
2026-04-17 ROCKTON, IL Significant 1.00" —
2026-04-17 South Beloit, IL Severe 1.50" Relayed via mping. Time estimated by radar.
2026-04-17 South Beloit, IL Significant 1.25" Report from mPING: Half Dollar (1.25 in.).
2026-04-17 South Beloit, IL Moderate 0.50" Report from mPING: Half-inch (0.50 in.).
2026-04-17 South Beloit, IL Severe 1.50" Report from mPING: Ping Pong Ball (1.50 in.).
2026-04-17 3 W Rockton, IL Significant 1.00" Relayed via mping.
2026-04-17 SOUTH BELOIT, IL Severe 1.50" —
2026-04-17 3 E South Beloit, IL Moderate 0.75" Report from mPING: Dime (0.75 in.).

Wind Storm History — Belvidere Area (Last 5 Years)

NOAA has recorded 273 high-wind events within 25 miles of Belvidere, IL in the past five years. Of those, 273 reached severe-thunderstorm thresholds (58+ mph). The highest measured gust was 100 mph.

SeverityCount
Destructive1 event
Severe108 events
Significant164 events

Recent Wind Events Near Belvidere

DateLocationGust (mph)SeverityNOAA Comments
2026-07-03 1 S Darien, WI 63 Significant Private Weather Station.
2026-07-03 2 SE Darien, WI 100 Destructive *** 3 FATAL, 2 INJ *** NWS Storm Survey for Walworth County: Damage from south of Darien through Lake Delavan to Como occurred due to downburst winds and not a tornado. Estimated peak winds of 90-100mph from about 5-10 barns that were destroyed/heavily damaged and hundreds of trees that were snapped at the trunk or uprooted. Witnesses in the area described it as a three round burst of high winds. 2 injuries documented SW of Delavan Lake when 3 20 foot by 90 foot empty silos collapsed and fell on motorcyclists that were seeking shelter from a storm. 3 people drowned in a capsized boat on Geneva Lake from the winds associated with this storm.
2026-06-28 3 NNW Marengo, IL 53 Significant Personal weather station measured a wind gust of 53.2 mph.
2026-06-28 3 N Poplar Grove, IL 51 Significant Personal weather station measured a wind gust of 51 mph.
2026-06-28 3 NNW Marengo, IL 60 Significant Personal weather station measured a wind gust of 60.4 mph.
2026-06-17 1 NW Cortland, IL 51 Significant Measured at KDKB. Wind gust heard on dial in.
2026-06-17 3 NW Sycamore, IL 53 Significant Measured at KILSYCAM31.
2026-06-11 4 NE Winnebago, IL 62 Significant Peak gust measured on personal weather station.
2026-06-11 WEMPLETON, IL 62 Significant A personal weather station measured a wind gust to 62 mph.
2026-06-11 BELVIDERE, IL 63 Significant Two trees 1 to 2 feet in diameter were blown down at a high school.
2026-06-11 ESMOND, IL 58 Significant Power lines were blown down near Mowers Road and Esmond Road.
2026-06-11 BELVIDERE, IL 58 Significant A photo showed a large tree limb blocking part of Shaw Road between State Street and Newburg Road.
2026-06-11 BULL VALLEY, IL 58 Significant Large tree limbs were broken near Fleming Road and Thompson Road.
2026-06-11 FONTANA, WI 58 Significant Local official reports a large downed tree branch on Hill Street in the community of Walworth. Wind gust estimated from radar data.
2026-06-10 BELVIDERE, IL 58 Significant A three inch diameter tree limb was blown down.
2026-06-10 2 NE Union, IL 60 Significant Trained spotter measured wind gust at Rt 176 and Franklinville Road east of Marengo. Time estimated by radar.
2026-06-10 2 S Poplar Grove, IL 58 Significant Personal weather station measured as the line of storms moved through.
2026-06-10 FRANKLINVILLE, IL 60 Significant A wind gust to 60 mph was reported near Franklinville Road and Route 176.
2026-06-10 POPLAR GROVE AIRPORT, IL 58 Significant A personal weather station measured a wind gust to 58 mph.
2026-06-10 HAMPSHIRE, IL 58 Significant A broken tree limb fell onto power lines along Walker Road north of Allen Road.

Frequently Asked Questions About Belvidere Hail

When was the last major hail storm in Belvidere, IL?

The most recent quarter-size-or-larger hail storm recorded by NOAA within 25 miles of Belvidere was on August 21, 2026. HailCheck refreshes from the NOAA Storm Events database daily, so newer events appear here as they are reported.

How often does it hail in Belvidere?

Belvidere averages roughly 22 reported hail events per year within a 25-mile radius. Significant storms (quarter-size or larger) account for 104 of the 108 events recorded over the last five years.

How big does hail typically get in Belvidere?

The largest documented hail near Belvidere in the last five years was egg-sized. Most Belvidere-area hail falls in the marble-to-quarter range, with destructive storms (egg-size or larger) appearing roughly once every few years.

Does my insurance cover hail damage in IL?

Most homeowners insurance policies in IL cover hail damage to roofs, siding, and gutters under the dwelling and other-structures coverage. Coverage typically requires the damage to be tied to a verifiable storm date — which is where the NOAA hail history above (and a HAAG-style test square validation) becomes important for the claim file.

How do I check hail history for a specific Belvidere address?

Use the HailCheck address search to enter any street address in or near Belvidere. HailCheck returns every NOAA hail event within a configurable radius, along with severity bands, dates, and storm narratives for Pro members.

What a HAAG-Style Test Square Validation Means in Belvidere

If your property in or near Belvidere took on hail during one of the storms above, the standard process for documenting damage is a 10×10 foot test square inspection. A HAAG-trained reviewer counts impact indicators — granule displacement, mat fractures, and bruising — within the marked square and produces a PASS or FAIL document for the claim file.

HailCheck offers a $99 photo-based HAAG-style test square validation. You submit photos from the field, our reviewer evaluates the impact indicators and cross-references the NOAA storm dates listed above, and a written PASS/FAIL determination is returned within one business day. We do not send anyone to the roof — the validation is built around the photos you submit.

Learn About $99 HAAG-Style Validation

Why Belvidere's Location Matters for Hail

Belvidere sits east of the traditional hail alley, where hail events are less frequent than the central plains but tend to be associated with strong squall lines and tropical systems. Local roof systems are less commonly hardened for hail, which can mean even moderate impacts produce claim-worthy damage.

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