Saint Peter, IL Hail Storm – June 2026

A hail-producing storm moved through Saint Peter, IL on June 21, 2026, producing stones up to 1.81 inches and prompting a long sequence of NWS warnings and radar hail detections. The event ran from early afternoon into the overnight hours and produced multiple radar-detected hail cores along a concentrated track.

What Happened

NWS warnings began at 1:27 PM CDT and continued intermittently through 2:17 AM CDT the next morning, generating 126 alerts tied to this storm's passage. Early in the event a spotter near Anna reported pea-sized hail and shared photographs showing apparent rotation and a wall cloud between 1:30 PM and 1:45 PM local time. The bulk of the hail signals intensified in late afternoon and early evening. Dual-polarization radar detected elevated hail signatures in a few pulses, with notable radar hail detections reported around 5:31 PM CDT, 5:43 PM CDT, 7:28 PM CDT, and 8:51 PM CDT. Most NWS messages in the sequence were NWS warning only entries noting quarter- to one-inch hail potential. The storm complex maintained a persistent warning area as it tracked through the metro region, producing repeated radar and warning activity rather than a single, isolated strike.

Damage Assessment

Field reports for this event were limited. The only Local Storm Report in the official record was a spotter-verified observation near Anna of pea-sized hail at 1:51 PM CDT, with accompanying photographs showing a wall cloud and possible rotation from about 1:30–1:45 PM CDT. No Local Storm Reports documented structural damage, vehicle impacts, or large-tree damage within Saint Peter in the immediate post-event files. Radar-derived hail detections showed concentrated cores along the storm track during late afternoon and early evening, indicating locations to prioritize for on-site assessment. Where radar signatures were strongest, expect a higher likelihood of shingle granule loss and denting to soft metals even if surface damage was not widely reported in initial ground-truth files.

What Contractors Should Know

Inspect properties along the radar-derived track and within the NWS warning area first. Start with soft-surface exposures and horizontal surfaces: siding panels, gutters, window screens, air-conditioning condensing units, and vehicles. Photograph all observations with a GPS-enabled device. Note the exact address, orientation of impact on the structure, and proximity to tree cover.

Target roof inspections to identify granule loss, bruising of asphalt shingles, and localized punctures on single-ply roofs. Use a lift or drone for initial visual survey to limit unnecessary roof foot traffic on suspect areas. Document pre-existing wear versus new event damage by capturing wide-angle context shots plus close-ups of affected shingles and fasteners.

For claims workflow, cross-reference addresses against the persistent NWS warning area timestamps and the radar detection windows around 5:30–9:00 PM CDT. Retain the spotter-verified report near Anna as ground-truth evidence for early-afternoon hail onset. For a paid, high-resolution hail track and damage zone map, order the Strike Map to locate precise radar-derived strike points and prioritize canvass zones.

Saint Peter, IL Hail Storm – June 2026

NWS WARNING AREAS · 132

What Happened

Damage Assessment

What Contractors Should Know

Storm Details

More from Saint Peter