Hail history for Lemont, Illinois
NOAA hail reports in and within about 5 km (3 miles) of Lemont since 1983, with preliminary reports to November 3, 2026.
Readout · Lemont
- Last hail
- Jul 27, 2026
- 1.75 in, golf ball size
- Hail days, last 5 years
- 2
- since Nov 3, 2021 · 2 reports
- Largest ever
- 1.75 in
- golf ball · Jul 27, 2026
21 reports on 18 days since 1983 · #106 of 378 Illinois places
Hail map · Lemont
- Under 1 in
- 1–1.75 in
- 1.75–2.5 in
- 2.5–4 in
- 4 in +
- No size
For homeowners
Roof damage after hail? Get a free inspection
Hail bruises shingles and cracks seals in ways you can't see from the ground, and most insurers set a claim deadline after the storm. The latest hail report in Lemont is from July 27, 2026. A local roofer can check and document it at no cost.
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What the record says about Lemont
The latest hail report in and around Lemont 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, Lemont logged 10 reports on 8 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 #106 of 378 Illinois cities and towns on this site for all-time reports. Lemont accounts for 3% 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 July 27, 2026 near 1.24 SE Lemont.
Reports were up 50% in 2016–2025 (6) compared with 2006–2015 (4). The busiest year was 2019, with 4 reports on 2 days. Hail here peaks in June (29% of reports); 57% fall between April and June.
Reports a year 2006–2025 average
- Lemont 0.5
- Cook County 20.1
- Median Illinois town on this site 0.5
Hail days 2006–2025
- Lemont 8
- Cook County 121
- Median Illinois town on this site 8
Share 2 in or larger of sized reports
- Lemont 0%
- Cook County 4%
- Median Illinois town on this site 4%
Hail over time
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 1 | 1 | |||||||||||
| 2025 | 1 | 1 | |||||||||||
| 2024 | 0 | ||||||||||||
| 2023 | 0 | ||||||||||||
| 2022 | 0 | ||||||||||||
| 2021 | 0 | ||||||||||||
| 2020 | 0 | ||||||||||||
| 2019 | 1 | 3 | 4 | ||||||||||
| 2018 | 1 | 1 | |||||||||||
| 2017 | 0 |
Hail days since Nov 3, 2021
| Date | Reports | Largest | Storm page |
|---|---|---|---|
| Jul 27, 2026 | 1 | 1.75 in | — |
| Mar 19, 2025 | 1 | 1.00 in | — |
Largest hail on record
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jul 27, 2026 | 1.75 ingolf ball | 1.24 SE Lemont | Cook | 11:31 local · NCEI |
| Jun 28, 2019 | 1.75 ingolf ball | 1.72 SE Lemont | Cook | 17:12 local · NCEI |
| Mar 30, 2005 | 1.75 ingolf ball | Lemont | Cook | 19:22 local · NCEI |
| May 23, 2004 | 1.75 ingolf ball | 5 NE Lockport | Will | 18:52 local · NCEI |
| Jun 19, 1986 | 1.75 ingolf ball | — | Cook | 15:00 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
- Under 1 in 7 33%
- 1–2 in 14 67%
- 2 in + 0 0%
Most recent reports
| Date | Size | Location | County | Time · source |
|---|---|---|---|---|
| Jul 27, 2026 | 1.75 ingolf ball | 1.24 SE Lemont | Cook | 11:31 local · NCEI |
| Mar 19, 2025 | 1.00 inquarter | 2.06 E Lemont | Cook | 16:18 local · NCEI |
| Jun 28, 2019 | 1.00 inquarter | 1.56 SE Lemont | Cook | 17:12 local · NCEI |
| Jun 28, 2019 | 1.75 ingolf ball | 1.72 SE Lemont | Cook | 17:12 local · NCEI |
| Jun 28, 2019 | 1.00 inquarter | 2.07 S Lemont | Cook | 17:04 local · NCEI |
| May 27, 2019 | 1.50 inping pong ball | 1.48 SSE Hastings | Cook | 13:23 local · NCEI |
| May 14, 2018 | 0.75 inpenny | Lemont | Cook | 17:08 local · NCEI |
| Apr 8, 2015 | 0.75 inpenny | 0.52 E Lemont | Cook | 23:48 local · NCEI |
| Oct 3, 2013 | 0.88 innickel | 0.28 N Lemont | Cook | 19:58 local · NCEI |
| Jul 9, 2007 | 0.88 innickel | Lemont | Cook | 15:24 local · NCEI |
| Oct 2, 2006 | 0.88 innickel | 0.52 W Lemont | Cook | 14:09 local · NCEI |
| Mar 30, 2005 | 1.75 ingolf ball | Lemont | Cook | 19:22 local · NCEI |
Hail history near Lemont
- Homer Glen 7 km · 10
- Woodridge 9 km · 15
- Lockport 9 km · 14
- Darien 9 km · 10
- Bolingbrook 10 km · 28
- Romeoville 11 km · 39
- Orland Park 12 km · 19
- Downers Grove 15 km · 31
Questions about hail in Lemont
How often does it hail in Lemont, Illinois?
21 hail reports have been logged in and within about 5 km (3 miles) of Lemont since 1983. Over the 20 years 2006–2025 that averages 0.5 reports a year. That ranks #106 of 378 Illinois places by number of reports.
When is hail season in Lemont?
Most reports come in June, May, March. June alone accounts for 29% of all reports.
What is the largest hail recorded in Lemont?
1.75 in (golf ball size) on July 27, 2026 near 1.24 SE Lemont. 0% of reports here were 2 inches or larger.
When did it last hail in Lemont?
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 Lemont had in the last five years?
2 separate days with hail reports since November 3, 2021, adding up to 2 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.