Hermantown, MN Live Doppler Radar
Live radar for Hermantown, St. Louis County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Hermantown?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 155 days in the Carlton/South St. Louis forecast zone and St. Louis County — the most common reported hazard around Hermantown, mostly in July and June. Next come heavy snow & winter storms (129 days) and extreme cold & wind chill (58 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 155 | Jun 2026 | Jul 19, 2021 · 1 death |
| Heavy snow & winter storms | 129 | Apr 2026 | Mar 16, 2023 · 1 death |
| Extreme cold & wind chill | 58 | Jan 2026 | Dec 16, 2017 · 1 death |
| Flash flooding | 27 | Jul 2025 | Jul 6, 1996 · $300,000 damage |
| Lightning casualties & damage | 25 | Jul 2025 | Aug 18, 2012 · 1 death |
| Flooding | 20 | Jun 2024 | Oct 9, 2018 · $18 million damage |
| Blizzards | 13 | Mar 2026 | Feb 29, 2012 · $1.0 million damage |
| High winds | 8 | Apr 2023 | — |
Source: NOAA NCEI Storm Events Database, 1996–2026 (the latest year is partial). A "day" is a date with at least one report in the Carlton/South St. Louis forecast zone and St. Louis County; damage is as reported, not adjusted for inflation.
How much snow does Hermantown get?
A normal year brings about 90 inches of snow to Hermantown, based on NOAA's 1991–2020 climate normals for the Duluth weather station 2.8 miles away. The snowiest month is usually December (18.7 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 2.7 | 14.1 | 18.7 | 16.8 | 15.1 | 12.8 | 9.1 | 0.8 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover Hermantown?
The closest NEXRAD Doppler radar is KDLH (Duluth, MN), about 3 miles north-northeast. Radar beams climb as they travel, so the height of the lowest scan over town decides how low in a storm the radar can see.
| Radar | Distance | Lowest beam over Hermantown | View |
|---|---|---|---|
| KDLH Duluth, MN | 3 mi north-northeast | 100 ft | Excellent — the lowest scan sees close to the ground |
| KMPX Minneapolis, MN | 149 mi south-southwest | 18,000 ft | Limited — the beam overshoots the lowest part of storms |
| KARX La Crosse, WI | 212 mi south-southeast | 32,300 ft | Limited — the beam overshoots the lowest part of storms |
Beam height is the center of the 0.5° scan above the radar, with standard refraction. Mountains near a radar can block it further.
Tornado & hail history near Hermantown
Since 1950, NOAA has recorded 12 tornadoes within 25 miles of Hermantown, 3 of them EF2/F2 or stronger. Most came in August and June. The strongest was an F3 on August 6, 1969, which passed about 18 miles north-northeast of town and caused 2 deaths. The most recent was an EF1 on September 19, 2024, which passed about 23 miles north-northwest of town.
Hail: 201 reports of 1-inch or larger hail within 25 miles since 1955, 20 of them 2 inches or more; the largest was 4.00-inch hail on September 8, 1958.
Source: NOAA Storm Prediction Center — tornadoes 1950–2025, hail 1955–2025. Distances are to each tornado's track; ratings before February 2007 use the original Fujita scale.
On TALON you get Hermantown's live radar loop, rain/snow/ice colors, flash-flood risk, storm tracks with arrival times and NWS warnings free; close-up radar and rotation detection are part of TALON Pro.
Hermantown radar FAQ
Where is the nearest weather radar to Hermantown, MN?
KDLH (Duluth, MN), about 3 miles north-northeast. KMPX (Minneapolis, MN) is 149 miles away and also covers the area.
Does radar show snow in Hermantown?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Hermantown the lowest scan from KDLH is about 100 ft up.
Is TALON's radar for Hermantown free?
Yes — the US radar loop, rain/snow/ice colors, flash-flood risk, storm tracks and NWS warnings are free in any browser. Close-up radar, rotation detection and longer forecasts are part of TALON Pro.
Should I rely on radar for my safety?
No app replaces official warnings. When the National Weather Service issues a warning for Hermantown, follow it right away — see watch vs. warning.
Radar for nearby towns
- Proctor, MN radar 4 mi
- Duluth, MN radar 5 mi
- Rice Lake, MN radar 9 mi
- Cloquet, MN radar 13 mi
- Two Harbors, MN radar 31 mi
- Moose Lake, MN radar 35 mi
- Gilbert, MN radar 49 mi
- Eveleth, MN radar 49 mi
- Aurora, MN radar 50 mi
- Virginia, MN radar 52 mi