Hail History

Hail history for Park Forest, Illinois

NOAA hail reports in and within about 5 km (3 miles) of Park Forest since 1963, with preliminary reports to November 3, 2026.

Readout · Park Forest

Last hail
Jul 27, 2026
1.00 in, quarter size
Hail days, last 5 years
1
since Nov 3, 2021 · 1 report
Largest ever
1.75 in
golf ball · Apr 10, 1999

10 reports on 9 days since 1963 · #360 of 378 Illinois places

Hail map · Park Forest

Park Forest Crete Tinley Park Oak Forest Frankfort Mokena Orland Park Alsip 20 mi
  • Under 1 in
  • 1–1.75 in
  • 1.75–2.5 in
  • 2.5–4 in
  • 4 in +
  • No size
10 most recent reports with a location; Cook County is shaded. Open street map

For homeowners

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What the record says about Park Forest

The latest hail report in and around Park Forest is from July 27, 2026, 1.00 in (quarter size). Since November 3, 2021 there has been one hail day; the biggest stones in that time were 1.00 in on July 27, 2026.

Over the 20 years 2006–2025, Park Forest logged 5 reports on 5 hail days, about 0.3 reports a year. That is about half the median Illinois town on this site (0.5 a year) and ranks #360 of 378 Illinois cities and towns on this site for all-time reports. Park Forest accounts for 2% of the 660 reports filed in Cook 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 April 10, 1999 near Park Forest.

The busiest year was 1996, with 2 reports on 1 day. Hail here peaks in April (30% of reports); 70% fall between April and June.

Reports a year 2006–2025 average

  • Park Forest 0.3
  • Cook County 20.1
  • Median Illinois town on this site 0.5

Hail days 2006–2025

  • Park Forest 5
  • Cook County 121
  • Median Illinois town on this site 8

Share 2 in or larger of sized reports

  • Park Forest 0%
  • Cook County 4%
  • Median Illinois town on this site 4%

Hail over time

012 1963: 1 reports, largest 1.25 in 1970 1980 1990 1996: 2 reports, largest 1.00 in 1999: 1 reports, largest 1.75 in 2000 2006: 1 reports, largest 0.75 in 2007: 1 reports, largest 0.75 in 2010 2012: 1 reports, largest 0.88 in 2013: 1 reports, largest 0.88 in 2019: 1 reports, largest 1.25 in 2020 2026: 1 reports, largest 1.00 in
Reports per year, 1963–2026. Bar colour shows the largest hail that year. Reporting grew sharply after the mid-1990s, so early decades undercount.
0123 January: 1 reports (10%) Jan Feb Mar April: 3 reports (30%) Apr May: 3 reports (30%) May June: 1 reports (10%) Jun July: 2 reports (20%) Jul Aug Sep Oct Nov Dec
All 10 reports by calendar month.
Reports per month, 2017–2026. Darker cells had more reports.
YearJanFebMarAprMayJunJulAugSepOctNovDecTotal
2026 1 1
2025 0
2024 0
2023 0
2022 0
2021 0
2020 0
2019 1 1
2018 0
2017 0

Hail days since Nov 3, 2021

DateReportsLargestStorm page
Jul 27, 2026 1 1.00 in —

Largest hail on record

Largest hail reports in Park Forest
Date Size Location County Time · source
Apr 10, 1999 1.75 ingolf ball Park Forest Cook 16:15 local · NCEI
May 27, 2019 1.25 inhalf dollar Park Forest Cook 15:06 local · NCEI
Jul 19, 1963 1.25 inhalf dollar — Will 18:00 local · NCEI
Jul 27, 2026 1.00 inquarter 0.86 SW Park Forest Cook 12:03 local · NCEI
Apr 19, 1996 1.00 inquarter Park Forest Cook 22:08 local · NCEI

Sizes filed before 1996 are often rough estimates (round numbers like 7.00 or 8.00 in) without an exact spot; they are shown as NOAA filed them.

Size of every report

Most recent reports

Most recent hail reports in Park Forest
Date Size Location County Time · source
Jul 27, 2026 1.00 inquarter 0.86 SW Park Forest Cook 12:03 local · NCEI
May 27, 2019 1.25 inhalf dollar Park Forest Cook 15:06 local · NCEI
Jan 28, 2013 0.88 innickel 0.52 W Park Forest Cook 23:07 local · NCEI
May 6, 2012 0.88 innickel 0.52 W Park Forest Cook 12:00 local · NCEI
Jun 1, 2007 0.75 inpenny Matteson Cook 19:24 local · NCEI
May 24, 2006 0.75 inpenny Matteson Cook 21:29 local · NCEI
Apr 10, 1999 1.75 ingolf ball Park Forest Cook 16:15 local · NCEI
Apr 19, 1996 1.00 inquarter Park Forest Cook 22:08 local · NCEI
Apr 19, 1996 1.00 inquarter Park Forest Cook 20:50 local · NCEI
Jul 19, 1963 1.25 inhalf dollar — Will 18:00 local · NCEI

Hail history near Park Forest

Questions about hail in Park Forest

How often does it hail in Park Forest, Illinois?

10 hail reports have been logged in and within about 5 km (3 miles) of Park Forest since 1963. Over the 20 years 2006–2025 that averages 0.3 reports a year. That ranks #360 of 378 Illinois places by number of reports.

When is hail season in Park Forest?

Most reports come in April, May, July. April alone accounts for 30% of all reports.

What is the largest hail recorded in Park Forest?

1.75 in (golf ball size) on April 10, 1999 near Park Forest. 0% of reports here were 2 inches or larger.

When did it last hail in Park Forest?

The most recent report in this data is from July 27, 2026 (1.00 in). Final NOAA data runs to July 31, 2026; preliminary NWS reports run to November 3, 2026.

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

1 separate days with hail reports since November 3, 2021, adding up to 1 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.