Hail in Mount Prospect, IL
Since January 2025, radar estimated hail within 5 miles of Mount Prospect on 5 days. The biggest estimate: 1.5 in or larger (ping-pong ball), on Mon, Jul 27, 2026. Hail was reported to the National Weather Service within 10 miles on 4 days.
Still loading: radar estimates go back to Wed, Oct 14, 2020, and the earlier years are being added.

By year: 2026: 2 · 2025: 4
Every hail day
- Mon, Jul 27, 2026
Radar estimate within 5 miles: 1.5 in or larger (ping-pong ball)
Reported within 10 miles- 1 in, 7.5 mi SW (1 SE Schaumburg, IL)
- 1.25 in, 7.5 mi SW (1 SE Schaumburg, IL)
- 1.25 in, 9 mi SW (1 NW Roselle, IL)
- 1 in, 9.5 mi SW (1 W Medinah, IL)
- Tue, Apr 14, 2026
Radar estimate within 5 miles: 0.75 in or larger (penny)
Reported within 10 miles- 1 in, 1.7 mi N (1 SW Prospect Heights, IL)
- 1 in, 10 mi SW (2 SW Schaumburg, IL)
- Sat, Aug 16, 2025
Radar estimate at the city centre: 0.75 in or larger (penny)
Radar estimate within 5 miles: 1.5 in or larger (ping-pong ball)
Reported within 10 miles- 1.25 in, 3.2 mi E (Des Plaines, IL)
- 1.25 in, 5.2 mi NW (1 E Palatine, IL)
- Sun, Aug 10, 2025
Radar estimate within 5 miles: 0.75 in or larger (penny)
No hail reported within 10 miles.
- Thu, Jun 26, 2025
Radar estimate within 5 miles: 0.75 in or larger (penny)
No hail reported within 10 miles.
- Thu, May 15, 2025Reported within 10 miles
- 1.25 in, 9.6 mi SE (1 E Franklin Park, IL)
Measured from Mount Prospect's centre: radar estimates within 5 miles, reports within 10. Radar estimates come from NOAA's MRMS estimated hail size (MESH), the largest hail the radar estimates aloft on a ~1 km grid. They often run larger than the hail that reached the ground, and they aren't an observation at any address. Reports are what people reported to the National Weather Service. Neither is proof of damage or an official record for an insurance claim.