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Alton, IL Hail Reports

Last reported hail near Alton, IL: May 3, 2026 — 2″ reported 0.4 mi N. Since then, radar has estimated hail up to 1.74″ over the area on 4 days, most recently Sep 5, 2026. 35 hail reports on 8 storm days within 10 miles of Alton, IL since November 2020; radar detected hail over the area on 53 days since October 2020.

Get free Illinois hail alerts Latest HailPing report: Alton, May 3

Hail map for Alton, IL

Interactive map of approximate storm locations. Pins show the centers of published storm bounds, not individual hail observations. Use Tab to move between map markers, then Enter to open a report summary. Prefer List View if you need a text-only browse path.

Pins show approximate storm centers, not individual hail observations.

Map geography, storm footprints, and Direct hit or Edge of the hail path boundaries are approximate and may be corrected. HailPing is not an emergency or official weather source. Read the full HailPing Disclaimer

Alton populationpopulation
25.6K
Alton householdshouseholds
10.9K

Largest hail on record near Alton, IL

The biggest hail reported within 10 miles of Alton, IL, as ground reports since November 2020. Each links to its day below.

  1. 2″April 27, 202611 reports, nearest 0.3 mi SSE
  2. 2″May 3, 20268 reports, nearest 0.4 mi N
  3. 2″March 14, 20245 reports, nearest 7.1 mi SE
  4. 1.25″July 17, 20235 reports, nearest 5.0 mi NNW
  5. 1″August 3, 20222 reports, nearest 2.1 mi W

Hail near Alton, IL, day by day

Every storm day with a hail report or a radar hail estimate within 10 miles of Alton, IL, newest first. Open a day to see its individual reports.

Storm days within 10 miles of Alton, IL: the largest and number of ground reports, the radar estimate, and the closest report
DateReported (largest)Reports (1.00″+)Radar estimateClosest reportStorm report
No report00.79″—
No report00.80″—
No report01.05″—
No report01.74″—
2″8 (8)1.16″0.4 mi N Full report for May 3, 2026
Show 8 reports from May 3, 2026
Ground hail reports on May 3, 2026, nearest first
TimeSizeFrom Alton, ILRemark
10:58 PM CDT1″0.4 mi N
10:58 PM CDT1.75″1.2 mi ENE
11:00 PM CDT2″2.7 mi W
10:55 PM CDT1.5″2.8 mi NW
10:55 PM CDT1″3.4 mi WNW
10:59 PM CDT1.75″3.8 mi NNW
11:06 PM CDT1″5.5 mi E
11:05 PM CDT1.5″6.0 mi E
2″11 (11)2.20″0.3 mi SSE Full report for Apr 27, 2026
Show 11 reports from Apr 27, 2026
Ground hail reports on Apr 27, 2026, nearest first
TimeSizeFrom Alton, ILRemark
6:50 PM CDT1.75″0.3 mi SSE
6:59 PM CDT1″1.2 mi ENE
6:52 PM CDT1″2.4 mi NW
6:55 PM CDT1.5″2.8 mi NW
6:56 PM CDT2″3.3 mi E
7:00 PM CDT1.25″3.9 mi ESE
6:54 PM CDT1″4.4 mi NNW
7:07 PM CDT1.75″4.9 mi E
7:03 PM CDT1.25″5.4 mi E
7:10 PM CDT1.25″5.4 mi E
7:10 PM CDT1″9.3 mi ENE
No report01.38″—
1″1 (1)1.59″2.8 mi SE
Show 1 report from Aug 12, 2025
Ground hail reports on Aug 12, 2025, nearest first
TimeSizeFrom Alton, ILRemark
2:40 PM CDT1″2.8 mi SE
No report00.78″—
No report01.15″—
No report00.83″—
No report00.99″—
No report00.85″—
No report01.26″—
No report00.98″—
No report00.91″—
No report00.81″—
No report00.76″—
No report00.76″—
No report00.90″—
No report01.01″—
No report00.86″—
No report00.93″—
No report00.75″—
No report01.02″—
No report00.82″—
No report01.50″—
No report00.85″—
0.88″1 (0)1.10″4.4 mi E
Show 1 report from Apr 1, 2024
Ground hail reports on Apr 1, 2024, nearest first
TimeSizeFrom Alton, ILRemark
7:16 PM CDT0.88″4.4 mi E
2″5 (5)3.35″7.1 mi SE
Show 5 reports from Mar 14, 2024
Ground hail reports on Mar 14, 2024, nearest first
TimeSizeFrom Alton, ILRemark
5:11 PM CDT1.75″7.1 mi SE
5:17 PM CDT1.75″7.1 mi SE
5:17 PM CDT2″9.3 mi SE
5:04 PM CDT1.25″10.0 mi SSW
5:20 PM CDT1.25″10.0 mi SE
No report00.98″—
No report01.09″—
No report00.85″—
No report01.23″—
No report01.28″—
1.25″5 (5)1.71″5.0 mi NNW
Show 5 reports from Jul 17, 2023
Ground hail reports on Jul 17, 2023, nearest first
TimeSizeFrom Alton, ILRemark
2:38 PM CDT1″5.0 mi NNW
2:44 PM CDT1.25″8.3 mi SSW
2:40 PM CDT1″9.6 mi WSW
2:35 PM CDT1.25″9.8 mi WSW
2:45 PM CDT1″9.9 mi SW
No report01.32″—
No report01.31″—
No report00.96″—
1″2 (1)1.71″2.1 mi W
Show 2 reports from Aug 3, 2022
Ground hail reports on Aug 3, 2022, nearest first
TimeSizeFrom Alton, ILRemark
4:40 PM CDT0.88″2.1 mi W
3:43 PM CDT1″8.6 mi SSW
No report00.76″—
No report01.08″—
No report01.38″—
No report00.81″—
No report00.88″—
No report00.80″—
No report00.99″—
No report00.87″—
No report01.14″—
No report01.05″—
No report00.87″—
No report00.78″—
1″2 (1)0.93″4.5 mi SE
Show 2 reports from Mar 27, 2021
Ground hail reports on Mar 27, 2021, nearest first
TimeSizeFrom Alton, ILRemark
5:54 PM CDT0.75″4.5 mi SE
5:35 PM CDT1″8.9 mi SSW

Reported sizes are ground reports filed by trained spotters, the public and emergency managers. Radar estimates come from MESH radar analysis and are not measurements. Both are within 10 miles of Alton, IL. Ground reports start Nov 24, 2020, so earlier days show "Not covered". Radar starts Oct 14, 2020. Report times are local to Alton, IL.

Hail near Alton, IL by year and month

By year
YearStorm daysReportsLargest reportedRadar max
20266192″2.20″
20251311″1.59″
20241262″3.35″
2023851.25″1.71″
2022521″1.71″
2021921″1.14″
Storm days by month, all years
MonthStorm daysBar
January0
February0
March4
April4
May7
June5
July16
August14
September3
October0
November0
December0

Hail near Alton, IL has been recorded most often in July: 16 of 53 storm days.

HailPing storm reports near Alton, IL

Storms HailPing grouped and published as full reports (hail of 1.00 inch or larger), newest first. The day-by-day list above includes every report.

Hail events near Alton, IL with date, maximum hail size, and report counts
Date Max hail Reports 1.00″+ Reports 1.75″+
May 3, 2026 2″ 8 3

See all Illinois hail reports

Recent hail storms near Alton, IL

  1. — hail up to 2″

    Storm summary, May 3, 2026

    On May 3, 2026, hail was reported across the Alton / Bethalto / Godfrey corridor. Reports concentrated near Bethalto, Upper Alton, Godfrey, and Alton. The largest reported hailstone measured 2.00 inches. HailPing grouped 8 reports of 1.00 inches or larger into this storm event.

    Affected cities: Bethalto, Upper Alton, Godfrey, Alton

    8 reports of 1.00"+ hail, 3 at 1.75"+. Read the full hail report

About hail in Alton, IL

Alton is home to 25,642 people and 10,878 households in Illinois. Hail or a radar hail estimate came within 10 miles of Alton, IL on 53 storm days across 2020–2026, an average of 9.4 a year over the full calendar years 2021–2025. July is the busiest month, with 16 of 53 storm days. The largest hail reported since November 2020 measured 2 inches on April 27, 2026.

How these figures are counted

Population and household figures are public census estimates for the city itself. Hail event counts and sizes come from reports HailPing has recorded, which may be delayed, incomplete, or later corrected — they are not confirmed hail damage or repair demand. Read the full HailPing Disclaimer

Common questions

When did it last hail in Alton, IL?

The last reported hail within 10 miles of Alton, IL was on May 3, 2026: hail up to 2 inches was reported, the nearest 0.4 mi N from Alton, IL. Since then, radar has estimated hail up to 1.74″ over the area on 4 days, most recently Sep 5, 2026. 35 hail reports on 8 storm days within 10 miles of Alton, IL since November 2020; radar detected hail over the area on 53 days since October 2020.

How big was the hail in Alton, IL?

The largest hail reported within 10 miles of Alton, IL on May 3, 2026 measured 2 inches. The largest hail reported near Alton, IL since November 2020 measured 2 inches on April 27, 2026.

How many hail reports were there near Alton, IL?

35 hail reports on 8 storm days within 10 miles of Alton, IL since November 2020, of which 32 measured 1.00 inch or larger. Every day is listed on this page.

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