Hail History

Hail history for Mokena, Illinois

NOAA hail reports in and within about 5 km (3 miles) of Mokena since 1996, with preliminary reports to November 3, 2026.

Readout · Mokena

Last hail
Jul 27, 2026
1.75 in, golf ball size
Hail days, last 5 years
2
since Nov 3, 2021 · 3 reports
Largest ever
1.75 in
golf ball · Jul 27, 2026

15 reports on 14 days since 1996 · #183 of 378 Illinois places

Hail map · Mokena

Mokena Frankfort Tinley Park New Lenox Orland Park Homer Glen Oak Forest Lockport Park Forest 10 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
15 most recent reports with a location; Will County is shaded. Open street map

For homeowners

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What the record says about Mokena

The latest hail report in and around Mokena is from July 27, 2026, 1.75 in (golf ball size). Since November 3, 2021 there have been 2 separate hail days; the biggest stones in that time were 1.75 in on July 27, 2026.

Over the 20 years 2006–2025, Mokena logged 10 reports on 10 hail days, about 0.5 reports a year. That is about the same as the median Illinois town on this site (0.5 a year) and ranks #183 of 378 Illinois cities and towns on this site for all-time reports. Mokena accounts for 4% of the 371 reports filed in Will County.

0% of reports with a size were 2 inches (hen egg) or larger, against 4% for the median Illinois town on this site. The largest hail on record here is 1.75 in (golf ball) on July 27, 2026 near 0.72 N Arbury Hills.

Reports were down 57% in 2016–2025 (3) compared with 2006–2015 (7). The busiest year was 2026, with 2 reports on 1 day. Hail here peaks in June (27% of reports); 60% fall between April and June.

Reports a year 2006–2025 average

  • Mokena 0.5
  • Will County 10.3
  • Median Illinois town on this site 0.5

Hail days 2006–2025

  • Mokena 10
  • Will County 95
  • Median Illinois town on this site 8

Share 2 in or larger of sized reports

  • Mokena 0%
  • Will County 3%
  • Median Illinois town on this site 4%

Hail over time

012 1996: 2 reports, largest 1.75 in 2000 2003: 1 reports, largest 0.88 in 2005 2006: 2 reports, largest 1.75 in 2010 2012: 2 reports, largest 0.88 in 2013: 2 reports, largest 0.75 in 2014: 1 reports, largest 0.75 in 2015 2017: 2 reports, largest 0.75 in 2020 2024: 1 reports, largest 1.50 in 2025 2026: 2 reports, largest 1.75 in
Reports per year, 1996–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
01234 Jan February: 2 reports (13%) Feb Mar April: 2 reports (13%) Apr May: 3 reports (20%) May June: 4 reports (27%) Jun July: 2 reports (13%) Jul August: 2 reports (13%) Aug Sep Oct Nov Dec
All 15 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 2 2
2025 0
2024 1 1
2023 0
2022 0
2021 0
2020 0
2019 0
2018 0
2017 11 2

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Jul 27, 2026 2 1.75 in —
May 7, 2024 1 1.50 in —

Largest hail on record

Largest hail reports in Mokena
Date Size Location County Time · source
Jul 27, 2026 1.75 ingolf ball 0.72 N Arbury Hills Will 11:48 local · NCEI
Apr 14, 2006 1.75 ingolf ball Dana La Salle 00:30 local · NCEI
Apr 19, 1996 1.75 ingolf ball Mokena Will 20:46 local · NCEI
May 7, 2024 1.50 inping pong ball 2 NW Mokena Will 13:12 local · NCEI
Jul 27, 2026 1.00 inquarter 1.03 W Mokena Will 11:42 local · NCEI

Size of every report

Most recent reports

Most recent hail reports in Mokena
Date Size Location County Time · source
Jul 27, 2026 1.75 ingolf ball 0.72 N Arbury Hills Will 11:48 local · NCEI
Jul 27, 2026 1.00 inquarter 1.03 W Mokena Will 11:42 local · NCEI
May 7, 2024 1.50 inping pong ball 2 NW Mokena Will 13:12 local · NCEI
Aug 28, 2017 0.75 inpenny Mokena Will 14:35 local · NCEI
Feb 28, 2017 0.75 inpenny Mokena Will 20:43 local · NCEI
Aug 25, 2014 0.75 inpenny Mokena Will 12:40 local · NCEI
Jun 12, 2013 0.75 inpenny Mokena Will 17:21 local · NCEI
May 3, 2013 0.75 inpenny Mokena Will 17:58 local · NCEI
Jun 29, 2012 0.88 innickel Mokena Will 21:03 local · NCEI
Jun 28, 2012 0.75 inpenny 0.48 S Arbury Hills Will 18:42 local · NCEI
Jun 22, 2006 0.88 innickel Mokena Will 07:48 local · NCEI
Apr 14, 2006 1.75 ingolf ball Dana La Salle 00:30 local · NCEI

Hail history near Mokena

Questions about hail in Mokena

How often does it hail in Mokena, Illinois?

15 hail reports have been logged in and within about 5 km (3 miles) of Mokena since 1996. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #183 of 378 Illinois places by number of reports.

When is hail season in Mokena?

Most reports come in June, May, February. June alone accounts for 27% of all reports.

What is the largest hail recorded in Mokena?

1.75 in (golf ball size) on July 27, 2026 near 0.72 N Arbury Hills. 0% of reports here were 2 inches or larger.

When did it last hail in Mokena?

The most recent report in this data is from July 27, 2026 (1.75 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

How many hail storms has Mokena had in the last five years?

2 separate days with hail reports since November 3, 2021, adding up to 3 reports. The most recent was July 27, 2026.

Where does this hail data come from?

Hail reports come from the NOAA NCEI Storm Events Database, which the National Weather Service compiles from spotter, public, law enforcement and media reports. Recent days use preliminary NWS Local Storm Reports via the Iowa Environmental Mesonet until NOAA publishes final data. Only reported hail is counted, so areas with fewer people tend to have fewer reports.