Hail and tornadoes in Jersey County, IL
Since January 2021, radar estimated hail somewhere in Jersey County, IL on 40 days. The biggest estimate: 2 in or larger (hen egg), on Mon, Apr 27, 2026. Hail was reported to the National Weather Service inside the county on 2 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 59 hail reports in Jersey County, IL on 34 days, 4 of them 2 inches or larger. The largest: 2.5 in, near Jerseyville, on Mon, Apr 27, 2026.
By decade: 2000s: 32 · 2010s: 22 · 2020s: 5
Tornadoes since 1950
13 tornadoes have touched Jersey County, IL since 1950, none of them rated F3/EF3 or stronger.
Strongest
- Sun, Mar 8, 2009 · EF2 · 0.98 mi long, 100 yd wide · near Rosedale
- Wed, Mar 11, 2026 · EF1 · 0.13 mi long, 100 yd wide · near Grafton
- Sat, Apr 29, 2017 · EF1 · 1.68 mi long, 50 yd wide · near Delhi
- Thu, Mar 14, 2024 · EF0 · 8.65 mi long, 100 yd wide · near Fieldon
- Thu, Mar 14, 2024 · EF0 · 2.28 mi long, 75 yd wide · near Fidelity
Most recent
- Wed, Mar 11, 2026 · EF1 · 0.13 mi long, 100 yd wide · near Grafton
- Thu, Apr 18, 2024 · EFU · 0.02 mi long, 10 yd wide · near Kemper
- Thu, Mar 14, 2024 · EF0 · 0.39 mi long, 200 yd wide · near Delhi
- Thu, Mar 14, 2024 · EF0 · 2.28 mi long, 75 yd wide · near Fidelity
- Thu, Mar 14, 2024 · EF0 · 8.65 mi long, 100 yd wide · near Fieldon
- Thu, Jun 28, 2018 · EF0 · 1.4 mi long, 50 yd wide · near Chautauqua
- Sat, Apr 29, 2017 · EF1 · 1.68 mi long, 50 yd wide · near Delhi
- Wed, Jun 4, 2014 · EF0 · 1.44 mi long, 30 yd wide · near Jerseyville
- Fri, Aug 31, 2012 · EF0 · 0.18 mi long, 40 yd wide · near Fieldon
- Sun, Mar 8, 2009 · EF0 · 3.67 mi long, 40 yd wide · near Rosedale
By decade: 2000s: 4 · 2010s: 4 · 2020s: 5
Still loading: NOAA's record goes back to 1950, and 2003 onward is in so far.
Every hail day since January 2021
- Tue, Sep 15, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jun 24, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
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.
- Sun, May 31, 2026
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sun, May 3, 2026
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Apr 27, 2026
Radar estimate anywhere in the county: 2 in or larger (hen egg)
Reported in the county- 1.5 in (Jerseyville, IL)
- 2.5 in (Jerseyville, IL)
- 1 in (1 N Jerseyville, IL)
- Sun, Apr 26, 2026
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Sep 20, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, Aug 10, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Jul 26, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Wed, Jul 16, 2025
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Fri, Jun 27, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, May 19, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, May 16, 2025
Radar estimate anywhere in the county: 2 in or larger (hen egg)
No hail reported in the county.
- Wed, Apr 30, 2025
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Aug 30, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Jul 31, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jul 15, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Jun 4, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sun, May 26, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, May 24, 2024
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sat, May 4, 2024
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Thu, Mar 14, 2024
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Tue, Sep 26, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Sat, Aug 26, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Aug 11, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Mon, Jul 17, 2023
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Sun, Jul 16, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Fri, Jun 30, 2023
Radar estimate anywhere in the county: 0.75 in or larger (penny)
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: 0.75 in or larger (penny)
Reported in the county- 1 in (FIELDON, IL)
- Wed, Aug 3, 2022
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
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.
- Tue, Feb 22, 2022
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Mon, Aug 23, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
No hail reported in the county.
- Thu, Aug 12, 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.
- Sat, Jun 19, 2021
Radar estimate anywhere in the county: 1.5 in or larger (ping-pong ball)
No hail reported in the county.
- Sun, May 16, 2021
Radar estimate anywhere in the county: 1 in or larger (quarter)
No hail reported in the county.
- Wed, Mar 17, 2021
Radar estimate anywhere in the county: 0.75 in or larger (penny)
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.