Hermosa, SD Live Doppler Radar
Live radar for Hermosa, Custer County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Hermosa?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 143 days in the Hermosa Foothills forecast zone and Custer County — the most common reported hazard around Hermosa, mostly in July and June. Next come high winds (39 days) and heavy snow & winter storms (37 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 143 | Jun 2026 | Jul 23, 2013 · $50,000 damage |
| High winds | 39 | May 2024 | — |
| Heavy snow & winter storms | 37 | Mar 2025 | — |
| Flash flooding | 21 | Jun 2026 | Aug 17, 2007 · $3.0 million damage |
| Flooding | 15 | Sep 2023 | May 21, 2019 · $100,000 damage |
| Blizzards | 8 | Mar 2021 | Nov 5, 2008 · $100,000 damage |
| Extreme cold & wind chill | 7 | Jan 2025 | — |
| Lightning casualties & damage | 4 | May 2014 | Aug 1, 2001 · $500,000 damage |
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 Hermosa Foothills forecast zone and Custer County; damage is as reported, not adjusted for inflation.
How much snow does Hermosa get?
A normal year brings about 33 inches of snow to Hermosa, based on NOAA's 1991–2020 climate normals for the Hermosa 3 Ssw weather station 2.6 miles away. The snowiest month is usually February (6.1 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 1.4 | 4.0 | 4.2 | 5.4 | 6.1 | 5.7 | 5.7 | 0.5 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover Hermosa?
The closest NEXRAD Doppler radar is KUDX (Rapid City, SD), about 27 miles 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 Hermosa | View |
|---|---|---|---|
| KUDX Rapid City, SD | 27 mi northeast | 1,600 ft | Excellent — the lowest scan sees close to the ground |
| KLNX North Platte, NE | 186 mi southeast | 25,800 ft | Limited — the beam overshoots the lowest part of storms |
| KCYS Cheyenne, WY | 203 mi south-southwest | 30,000 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 Hermosa
Since 1950, NOAA has recorded 38 tornadoes within 25 miles of Hermosa, 7 of them EF2/F2 or stronger. Most came in June and May. The strongest was an F3 on May 11, 1991, which touched down about 25 miles north of town. The most recent was an EF1 on May 23, 2021, which passed about 17 miles west-southwest of town.
Hail: 1,426 reports of 1-inch or larger hail within 25 miles since 1955, 221 of them 2 inches or more; the largest was 6.00-inch hail on June 22, 1968.
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 Hermosa'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.
Hermosa radar FAQ
Where is the nearest weather radar to Hermosa, SD?
KUDX (Rapid City, SD), about 27 miles northeast. KLNX (North Platte, NE) is 186 miles away and also covers the area.
Does radar show snow in Hermosa?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Hermosa the lowest scan from KUDX is about 1,600 ft up.
Is TALON's radar for Hermosa 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 Hermosa, follow it right away — see watch vs. warning.
Radar for nearby towns
- Rapid City, SD radar 16 mi
- Box Elder, SD radar 19 mi
- Custer, SD radar 21 mi
- Summerset, SD radar 26 mi
- Piedmont, SD radar 28 mi
- Hot Springs, SD radar 32 mi
- Sturgis, SD radar 42 mi
- Lead, SD radar 46 mi
- Deadwood, SD radar 46 mi
- Spearfish, SD radar 55 mi