Lewistown, IL Hail Storm – April 2026

Lewistown, Illinois, saw a concluded hail event on April 16, 2026. The peak verified hail size reached 0.44 inch during a late-evening storm that also carried a 0.75 inch hail warning at 10:27 PM CDT.

What Happened

A single storm moved through the Lewistown area on April 16 and produced a brief hail threat late in the evening. The NWS issued one hail-related warning at 10:27 PM CDT, with 0.75 inch hail listed in the warning area.

The verified hail size came in below that threshold at 0.44 inch. The event is now concluded. The timing places the hail threat in the late-evening window rather than during the stronger daytime heating cycle that often supports larger hail cores.

For public reference, this page covers the broader warning area tied to the storm. The warning polygon extended over the Lewistown metro area during the alert window. StormSnipe mapped the event as a single-zone report for Lewistown on April 16, 2026.

Damage Assessment

Hail at 0.44 inch is roughly dime to nickel size. It can strike exposed surfaces, but it usually does not produce the widespread roof and siding loss associated with larger hail sizes. The most common field signs are light shingle bruising, granular loss on older roofing, minor screen wear, and small marks on softer outdoor materials.

Vehicles parked outside may show scattered impact marks, especially on horizontal panels and mirrors. Gutter systems, window screens, patio covers, and thin vinyl trim can also show isolated cosmetic impact. On homes with older asphalt shingles, a brief hail burst at this size can leave intermittent wear that is easy to miss from the ground.

Tree leaves and tender landscaping may show small tears or punctures. Metal surfaces can show a few visible dings if the hail core passed directly overhead. The overall footprint is usually narrow in storms at this size, with impacts concentrated along the strongest part of the hail swath.

What Contractors Should Know

Crews in the Lewistown area should prioritize roof slopes, soft metal trim, screens, and vehicle exposure from the storm window. Document shingle condition, ridge caps, flashings, and gutters. On older roofs, look for bruising and surface loss rather than relying only on obvious punctures or breakage. If the property has multiple exposures, inspect the side facing the storm path first.

Interior leak checks still matter after a small hail event. Flashing separation, displaced tabs, and pre-existing wear can overlap with hail impacts on low-slope roofs and older shingle fields. On commercial properties, check rooftop HVAC housings, vent boots, and membrane edges for localized impact marks. Keep notes tied to the time window of the late-evening warning area so field findings stay aligned with the event.

For direct hail tracking, see the Strike Map for precise hail track data.