St. Onge, SD Live Doppler Radar
Live radar for St. Onge, Lawrence County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits St. Onge?
Since 1996, the National Weather Service has logged heavy snow or a winter storm on 110 days in the Northern Foothills forecast zone and Lawrence County — the most common reported hazard around St. Onge, mostly in April and December. Next come high winds (85 days) and damaging thunderstorm winds (66 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Heavy snow & winter storms | 110 | Dec 2024 | Apr 18, 2006 · $2.0 million damage |
| High winds | 85 | Dec 2024 | Jan 27, 2008 · $100,000 damage |
| Damaging thunderstorm winds | 66 | Aug 2025 | Aug 1, 2000 · $9.5 million damage |
| Blizzards | 24 | Dec 2022 | Nov 5, 2008 · $100,000 damage |
| Flash flooding | 13 | Aug 2024 | Jul 4, 2019 · $297,000 damage |
| Flooding | 10 | Jun 2023 | Jun 4, 2008 · $1.0 million damage |
| Extreme cold & wind chill | 9 | Feb 2025 | — |
| Lightning casualties & damage | 6 | Jul 2015 | Jul 12, 2015 · 1 death |
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 Northern Foothills forecast zone and Lawrence County; damage is as reported, not adjusted for inflation.
How much snow does St. Onge get?
A normal year brings about 71 inches of snow to St. Onge, based on NOAA's 1991–2020 climate normals for the Spearfish weather station 8.2 miles away. The snowiest month is usually December (14.9 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 5.5 | 6.3 | 14.9 | 8.2 | 12.7 | 12.0 | 8.5 | 2.3 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover St. Onge?
The closest NEXRAD Doppler radar is KUDX (Rapid City, SD), about 53 miles east-southeast. 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 St. Onge | View |
|---|---|---|---|
| KUDX Rapid City, SD | 53 mi east-southeast | 3,800 ft | Good — most storms and steady rain or snow show clearly |
| KBIS Bismarck, ND | 210 mi northeast | 31,700 ft | Limited — the beam overshoots the lowest part of storms |
| KLNX North Platte, NE | 239 mi southeast | 39,500 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 St. Onge
Since 1950, NOAA has recorded 43 tornadoes within 25 miles of St. Onge, 10 of them EF2/F2 or stronger. Most came in June and July. The strongest was an F3 on July 12, 1965, which passed about 23 miles south-southwest of town. The most recent was an EF1 on July 10, 2020, which passed about 15 miles south-southwest of town.
Hail: 681 reports of 1-inch or larger hail within 25 miles since 1955, 88 of them 2 inches or more; the largest was 6.00-inch hail on June 19, 2015.
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 St. Onge'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.
St. Onge radar FAQ
Where is the nearest weather radar to St. Onge, SD?
KUDX (Rapid City, SD), about 53 miles east-southeast. KBIS (Bismarck, ND) is 210 miles away and also covers the area.
Does radar show snow in St. Onge?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over St. Onge the lowest scan from KUDX is about 3,800 ft up.
Is TALON's radar for St. Onge 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 St. Onge, follow it right away — see watch vs. warning.
Radar for nearby towns
- Spearfish, SD radar 6 mi
- Belle Fourche, SD radar 11 mi
- Deadwood, SD radar 11 mi
- Lead, SD radar 14 mi
- Sturgis, SD radar 14 mi
- Piedmont, SD radar 28 mi
- Summerset, SD radar 31 mi
- Rapid City, SD radar 41 mi
- Box Elder, SD radar 44 mi
- Custer, SD radar 54 mi