St. Mary, MT Live Doppler Radar
Live radar for St. Mary, Glacier County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits St. Mary?
Since 1996, the National Weather Service has logged high winds on 56 days in the East Glacier Park Region forecast zone and Glacier County — the most common reported hazard around St. Mary, mostly in November and March. Next come damaging thunderstorm winds (26 days) and heavy snow & winter storms (19 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| High winds | 56 | Mar 2026 | Mar 19, 2026 · $3,000 damage |
| Damaging thunderstorm winds | 26 | May 2026 | — |
| Heavy snow & winter storms | 19 | Nov 2025 | — |
| Flooding | 7 | Jun 2026 | — |
| Extreme cold & wind chill | 5 | Feb 2025 | — |
| Blizzards | 3 | Mar 2026 | — |
| Flash flooding | 2 | Jun 2002 | — |
| Wildfires | 1 | Aug 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 East Glacier Park Region forecast zone and Glacier County; damage is as reported, not adjusted for inflation.
Which radars cover St. Mary?
The closest NEXRAD Doppler radar is KMSX (Missoula, MT), about 120 miles south-southwest. 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. Mary | View |
|---|---|---|---|
| KMSX Missoula, MT | 120 mi south-southwest | 12,800 ft | Limited — the beam overshoots the lowest part of storms |
| KTFX Great Falls, MT | 129 mi southeast | 14,300 ft | Limited — the beam overshoots the lowest part of storms |
| KOTX Spokane, WA | 207 mi west-southwest | 30,900 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. Mary
NOAA has no tornado on record within 25 miles of St. Mary since 1950.
Hail: 26 reports of 1-inch or larger hail within 25 miles since 1955; the largest was 1.75-inch hail on June 18, 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 St. Mary'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. Mary radar FAQ
Where is the nearest weather radar to St. Mary, MT?
KMSX (Missoula, MT), about 120 miles south-southwest. KTFX (Great Falls, MT) is 129 miles away and also covers the area.
Does radar show snow in St. Mary?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over St. Mary the lowest scan from KMSX is about 12,800 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.
Is TALON's radar for St. Mary 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. Mary, follow it right away — see watch vs. warning.
Radar for nearby towns
- Columbia Falls, MT radar 43 mi
- Whitefish, MT radar 47 mi
- Cut Bank, MT radar 51 mi
- Kalispell, MT radar 55 mi