Keystone, CO Live Doppler Radar
Live radar for Keystone, Summit County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Keystone?
Since 1996, the National Weather Service has logged heavy snow or a winter storm on 203 days in the South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet forecast zone and Summit County — the most common reported hazard around Keystone, mostly in April and December. Next come high winds (81 days) and avalanches (32 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Heavy snow & winter storms | 203 | May 2026 | — |
| High winds | 81 | Mar 2026 | — |
| Avalanches | 32 | Feb 2025 | Apr 20, 2013 · 5 deaths |
| Lightning casualties & damage | 5 | Jul 2011 | Aug 1, 2004 · 1 death |
| Blizzards | 4 | Jan 2012 | — |
| Damaging thunderstorm winds | 3 | Jul 2022 | Jul 16, 2022 · 1 death |
| Extreme cold & wind chill | 2 | Jan 2025 | — |
| Flash flooding | 1 | Jul 2011 | Jul 18, 2011 · $210,000 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 South and Southeast Grand/West Central and Southwest Boulder/Gilpin/Clear Creek/Summit/North and West Park Counties Above 9000 Feet forecast zone and Summit County; damage is as reported, not adjusted for inflation.
How much snow does Keystone get?
A normal year brings about 115 inches of snow to Keystone, based on NOAA's 1991–2020 climate normals for the Dillon 1 E weather station 6.5 miles away. The snowiest month is usually January (18.0 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 7.1 | 14.6 | 15.8 | 18.0 | 17.0 | 17.5 | 17.3 | 6.4 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover Keystone?
The closest NEXRAD Doppler radar is KFTG (Denver/Boulder, CO), about 75 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 Keystone | View |
|---|---|---|---|
| KFTG Denver/Boulder, CO | 75 mi east-northeast | 6,300 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KPUX Pueblo, CO | 122 mi southeast | 13,000 ft | Limited — the beam overshoots the lowest part of storms |
| KCYS Cheyenne, WY | 124 mi north-northeast | 13,400 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 Keystone
Since 1950, NOAA has recorded 3 tornadoes within 25 miles of Keystone, 1 of them EF2/F2 or stronger. Most came in June and August. The strongest was an F2 on June 13, 1977, which touched down about 22 miles south of town. The most recent was an EF0 on July 28, 2012, which touched down about 16 miles east of town.
Hail: 6 reports of 1-inch or larger hail within 25 miles since 1955; the largest was 1.75-inch hail on June 28, 2013.
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 Keystone'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.
Keystone radar FAQ
Where is the nearest weather radar to Keystone, CO?
KFTG (Denver/Boulder, CO), about 75 miles east-northeast. KPUX (Pueblo, CO) is 122 miles away and also covers the area.
Does radar show snow in Keystone?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Keystone the lowest scan from KFTG is about 6,300 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.
Is TALON's radar for Keystone 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 Keystone, follow it right away — see watch vs. warning.
Radar for nearby towns
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