Wind, hail, and tornado activity from official NOAA sources (NWS & SPC) · Last 12 months · Updated Sep 11, 2026
Has it hailed in Jefferson County, Montana recently? Official National Weather Service (NWS) and Storm Prediction Center (SPC) records say yes: 2 hail reports with hail up to 1", among 7 severe weather events logged here in the last 12 months, together with 5 high-wind reports with gusts up to 62 mph. The most recent recorded storm activity was in September 2026. This page updates daily: every event comes straight from official NOAA data — no estimates, no modeling, just the record.
NEXRAD radar at the moment of the Sep 13, 2025 wind event (61 mph) near 10 SE Boulder. Outlined polygons are the storm-based warnings exactly as issued by the National Weather Service. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.
Last 30 days in Jefferson County
Current radar over the Jefferson County area, with storm reports from the past 7 days plotted. Refreshes throughout the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.
Storm activity from the last 30 days is summarized at the county level on this page. Exact locations, radar snapshots, and official warning boundaries for recent events are available with a free account.
Events older than 30 days, as recorded by the National Weather Service and Storm Prediction Center. Excerpts are quoted directly from official warnings and verified reports.
Thursday, July 16, 2026
2 SPC verified storm reports — hail up to 1"
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.
“Delayed public report of dime to quarter sized hail... along with 0.44 inches of rainfall. Time estimated by radar. (TFX)”
SPC verified report · 2 N Clancy
“Corrects previous hail report from 2 N Clancy. Delayed public report of dime to quarter sized hail... along with 0.44 inches of rainfall. (TFX)”
SPC verified report · 2 N Clancy
Hail1"2 N ClancySPC verified report
Hail1"2 N ClancySPC verified report
Saturday, September 13, 2025
1 SPC verified storm report — wind gusts up to 61 mph
Radar during the most significant activity of the day. Imagery courtesy of the Iowa Environmental Mesonet, Iowa State University; radar data via NOAA/NWS.
“Mesonet station MTBLS Boulder South Mt-69 Mp 27.7. (TFX)”
SPC verified report · 10 SE Boulder
Wind61 mph10 SE BoulderSPC verified report
Today's severe weather outlook
Storm Prediction Center Day 1 convective outlook: categorical severe weather risk for today, updated several times daily. Source: NOAA/NWS Storm Prediction Center.
Common questions
When was the last severe storm in Jefferson County, MT?
The most recent recorded event was in September 2026. Official NWS and SPC records show 7 severe weather events in Jefferson County over the last 12 months. Exact dates and locations for recent storms are available in the app with a free account.
Has there been hail in Jefferson County recently?
Yes — 2 hail reports in the last 12 months, with hail up to 1" recorded.
How do I check whether a specific address was affected?
Create a free IDOLCheck account and run an address check. It shows verified storm reports and official NWS warning boundaries around any specific property — county-level pages like this one only tell part of the story.
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IDOLCheck is built by HailyAI. Every storm event, magnitude, radar snapshot, and date on this page
is deterministic — retrieved directly from official NOAA, National Weather Service (NWS), and Storm
Prediction Center (SPC) storm records through our HailyDB engine and displayed exactly as reported.
Quoted warning and report text is always attributed to its official source. Where the surrounding
copy is not a direct quote, it was generated with AI assistance from that same verified storm data
and reviewed and approved by humans before publication. AI organizes and presents the record — it
never invents storm data.
