Hail and tornadoes in Mercer County, IL
Since October 2020, radar estimated hail somewhere in Mercer County, IL on 54 days. The biggest estimate: 1.5 in or larger (ping-pong ball), on Mon, Jul 20, 2026. Hail was reported to the National Weather Service inside the county on 6 days.
Still loading: radar estimates go back to Wed, Oct 14, 2020, and the earlier years are being added.
Radar estimates are NOAA's MESH: the largest hail the radar estimates aloft, on cells about 0.7 mile across, shown as the lower bound of a size band (“1.5+”). They often run larger than what reached the ground, and they aren't evidence of damage at any address.
Hail on record since 1955
NOAA's Storm Events database lists 76 hail reports in Mercer County, IL on 42 days, 1 of them 2 inches or larger. The largest: 2 in, near Matherville, on Wed, Jun 12, 2002.
By decade: 1990s: 6 · 2000s: 39 · 2010s: 15 · 2020s: 16
Tornadoes since 1950
35 tornadoes have touched Mercer County, IL since 1950, none of them rated F3/EF3 or stronger.
Strongest
- Sun, May 24, 2015 · EF2 · 6.75 mi long, 50 yd wide · near Mannon
- Thu, Apr 13, 2006 · F2 · 2 mi long, 50 yd wide · near Matherville
- Thu, Jun 18, 1998 · F2 · 6 mi long, 880 yd wide · near Seaton
- Tue, Jun 3, 2025 · EF1 · 1.57 mi long, 175 yd wide · near New Boston
- Tue, Jun 3, 2025 · EF1 · 1.77 mi long, 100 yd wide · near Hamlet
Most recent
- Fri, Apr 17, 2026 · EF0 · 0.95 mi long, 50 yd wide · near Viola
- Tue, Jun 3, 2025 · EF1 · 1.77 mi long, 100 yd wide · near Hamlet
- Tue, Jun 3, 2025 · EF1 · 10.84 mi long, 250 yd wide · near Mannon
- Tue, Jun 3, 2025 · EF1 · 1.57 mi long, 175 yd wide · near New Boston
- Sun, Apr 20, 2025 · EF0 · 0.86 mi long, 25 yd wide · near New Boston
- Mon, Jul 15, 2024 · EF1 · 8.36 mi long, 100 yd wide · near Preemption
- Sat, Aug 20, 2022 · EFU · 2.83 mi long, 10 yd wide · near Aledo
- Sat, Aug 20, 2022 · EFU · 0.27 mi long, 10 yd wide · near Mannon
- Tue, Nov 10, 2020 · EF1 · 0.54 mi long, 30 yd wide · near Burgess
- Tue, Nov 10, 2020 · EF1 · 14.03 mi long, 50 yd wide · near Joy
By decade: 1990s: 5 · 2000s: 12 · 2010s: 8 · 2020s: 10
Still loading: NOAA's record goes back to 1950, and 1995 onward is in so far.
Every hail day since October 2020
- Wed, Aug 19, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Aug 12, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jul 20, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Fri, Jul 3, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Jul 2, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Jun 11, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Jun 5, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, May 4, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Apr 3, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Apr 2, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Tue, Mar 10, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1.25 in (Seaton, IL)
- 1 in (2 N New Windsor, IL)
- 1 in (2 N New Windsor, IL)
- Mon, Aug 18, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Aug 9, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Aug 6, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Jul 11, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Jul 10, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Mar 27, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (Viola, IL)
- Thu, Oct 24, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Oct 3, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Aug 15, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Aug 5, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Tue, Jun 25, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Jun 16, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Jun 13, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Tue, May 21, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, May 19, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Apr 16, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1 in (3 NNW Shaw, IL)
- 1 in (Cable, IL)
- 1 in (Sherrard, IL)
- Mon, Mar 4, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Feb 27, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1.25 in (1 NNE Aledo, IL)
- Wed, Aug 16, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
Reported in the county- 1.75 in (Aledo, IL)
- Fri, Jul 14, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Jul 11, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, May 7, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sat, May 6, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Apr 20, 2023
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
Reported in the county- 1 in (SHERRARD, IL)
- Tue, Apr 4, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Mar 31, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Sep 18, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Aug 19, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Aug 1, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Jul 31, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jul 11, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Jul 10, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Jun 25, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Jun 13, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, May 13, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Feb 22, 2022
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Aug 11, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Tue, Aug 10, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Aug 9, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Jul 29, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jul 26, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Jul 14, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Jun 18, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
Radar estimates and reports are for anywhere inside the county's boundary. 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. From NOAA's Storm Events Database (NCEI), which records tornadoes from 1950, hail and thunderstorm wind from 1955, and every kind of storm from 1996. A tornado that crossed county lines is counted in each county it touched. Recent months are added as NCEI publishes them, a few months behind. Damage is in the dollars of its year and is often an estimate.