Boulder, WY Live Doppler Radar
Live radar for Boulder, Sublette County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Boulder?
Since 1996, the National Weather Service has logged heavy snow or a winter storm on 68 days in the Upper Green River Basin Foothills forecast zone and Sublette County — the most common reported hazard around Boulder, mostly in January and February. Next come damaging thunderstorm winds (36 days) and extreme cold & wind chill (13 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Heavy snow & winter storms | 68 | Apr 2025 | — |
| Damaging thunderstorm winds | 36 | Jun 2026 | Jul 2, 1998 · $400,000 damage |
| Extreme cold & wind chill | 13 | Jan 2024 | — |
| High winds | 7 | Jun 2026 | — |
| Flash flooding | 5 | Jul 2018 | Aug 17, 2007 · $10,000 damage |
| Lightning casualties & damage | 4 | May 2010 | Jun 16, 2003 · 1 death |
| Blizzards | 3 | May 2001 | — |
| Wildfires | 3 | Oct 2018 | Sep 18, 2018 · $10 million 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 Upper Green River Basin Foothills forecast zone and Sublette County; damage is as reported, not adjusted for inflation.
How much snow does Boulder get?
A normal year brings about 42 inches of snow to Boulder, based on NOAA's 1991–2020 climate normals for the Boulder Rearing Stn weather station 2.3 miles away. The snowiest month is usually February (7.3 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 3.6 | 4.9 | 6.9 | 6.8 | 7.3 | 5.3 | 4.9 | 1.9 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover Boulder?
The closest NEXRAD Doppler radar is KRIW (Riverton, WY), about 66 miles east-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 Boulder | View |
|---|---|---|---|
| KRIW Riverton, WY | 66 mi east-northeast | 5,200 ft | Good — most storms and steady rain or snow show clearly |
| KSFX Pocatello, ID | 153 mi west | 18,700 ft | Limited — the beam overshoots the lowest part of storms |
| KMTX Salt Lake City, UT | 174 mi southwest | 23,200 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 Boulder
Since 1950, NOAA has recorded 4 tornadoes within 25 miles of Boulder. Most came in July and April. The strongest was an F1 on July 30, 1975, which touched down about 23 miles west-northwest of town. The most recent was an EF0 on September 4, 2024, which touched down about 11 miles southwest of town.
Hail: 5 reports of 1-inch or larger hail within 25 miles since 1955; the largest was 1.50-inch hail on June 19, 2004.
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 Boulder'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.
Boulder radar FAQ
Where is the nearest weather radar to Boulder, WY?
KRIW (Riverton, WY), about 66 miles east-northeast. KSFX (Pocatello, ID) is 153 miles away and also covers the area.
Does radar show snow in Boulder?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Boulder the lowest scan from KRIW is about 5,200 ft up.
Is TALON's radar for Boulder 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 Boulder, follow it right away — see watch vs. warning.
Radar for nearby towns
- Pinedale, WY radar 12 mi
- Lander, WY radar 50 mi