Idaho hail map — September 17, 2026
NOAA radar detected hail of an inch or more over 6 Idaho cities on September 17, 2026. The largest stones — 2.50″, hen egg size — fell over Blackfoot.
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- Cities hit
- 6
- in Idaho
- Largest stone
- 2.50″
- hen egg size
- Impact rating
- 8/10
- from stone size
Sizes come from NOAA radar, which runs about ±0.25″ against ground truth. It is canvass-targeting quality, not claim evidence.
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What people on the ground measured in Idaho on September 17, 2026
12 reports filed with the National Weather Service. These are measured stones, not radar estimates, so they are the closest thing to proof that hail actually reached the ground.
- 2.50″ hen egg size Public1 NNE Rose, ID8:50 PM MDTBingham County
Photo of tennis ball sized hail. Report via Facebook.
- 1.75″ golf ball size PublicBlackfoot, ID9:20 PM MDTBingham County
Multiple reports of quarter to golf ball sized hail in the western Blackfoot area. Reports via Facebook.
- 1.75″ golf ball size Public1 SSW Blackfoot, ID10:10 PM MDTBingham County
Report via Facebook.
- 1.75″ golf ball size Public3 ENE Rose, ID10:12 PM MDTBingham County
Golf ball sized hail. Windshields damaged. Report via Facebook.
- 1.75″ golf ball size Public2 WNW Shelley, ID10:30 PM MDTBingham County
Reports of hail up to the size of golf balls in the Journeys End Neighborhood. Reports via Facebook.
- 1.50″ half dollar size Public1 E Blackfoot, ID9:00 PM MDTBingham County
- 1.25″ half dollar size PublicGannett, ID9:40 AM MDTBlaine County
- 1.25″ half dollar size Public3 E Rose, ID10:20 AM MDTBingham County
Report via Facebook.
- 1.25″ half dollar size Public2 S Moreland, ID9:10 PM MDTBingham County
Corrects previous hail report from 2 S Moreland. Corrected for accurate timing. In the Thomas area. Report via Facebook.
- 1.25″ half dollar size Public2 NW Blackfoot, ID9:15 PM MDTBingham County
Report via Facebook.
- 1.25″ half dollar size Public3 E Rose, ID10:20 PM MDTBingham County
Corrects previous hail report from 3 E Rose. Report via Facebook.
- 1.25″ half dollar size PublicFirth, ID10:30 PM MDTBingham County
Report via Facebook.
Showing the 12 largest of 25 hail reports filed that day.
These are verified ground reports, updated every 15 minutes. A report records where the observer was, not the full extent of the swath — treat it as evidence about the storm, not about any one roof.
Other states hit on September 17, 2026
The full US hail map for September 17, 2026 →Other Idaho hail days
Shopping for a hail app to work Idaho?
This page is one storm. If you are deciding which tool to work Idaho with all season, these compare the ones roofers actually buy — with every price taken from the vendor's own site and linked.
- Best hail tracking apps, comparedHailMate, HailTrace, Hail Recon, HailStrike and RadarScope — every published price sourced and linked, and who each one is genuinely right for.
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- Hail map apps for roofers (and the Hail Recon alternative)Every storm on one map instead of loading dates one at a time — plus the canvassing and the whole claim, monthly, for what one state costs them a year.
- Best canvassing apps, comparedHailMate, SalesRabbit, SPOTIO, Knockio, RoofLink and Badger Maps — every published price sourced and linked, and two of them publish none.
Idaho hail on September 17, 2026
NOAA radar put hail of an inch or more over 6 Idaho cities that day. The largest stones — 2.50 inches, hen egg size — were over Blackfoot. Every city hit is listed above with its own stone size.