St. Marie, MT Live Doppler Radar
Live radar for St. Marie, Valley County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits St. Marie?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 190 days in the Central and Southern Valley forecast zone and Valley County — the most common reported hazard around St. Marie, mostly in July and June. Next come high winds (102 days) and heavy snow & winter storms (61 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 190 | May 2026 | Aug 6, 2010 · $750,000 damage |
| High winds | 102 | May 2026 | Jun 26, 2012 · $15,000 damage |
| Heavy snow & winter storms | 61 | Dec 2025 | — |
| Flooding | 61 | Jun 2023 | Aug 24, 2014 · $1.1 million damage |
| Extreme cold & wind chill | 43 | Feb 2025 | — |
| Flash flooding | 27 | Jul 2024 | Jun 7, 2005 · $200,000 damage |
| Blizzards | 18 | Apr 2026 | — |
| Ice storms & sleet | 7 | Jan 2026 | Jan 19, 2010 · $15,000 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 Central and Southern Valley forecast zone and Valley County; damage is as reported, not adjusted for inflation.
How much snow does St. Marie get?
A normal year brings about 41 inches of snow to St. Marie, based on NOAA's 1991–2020 climate normals for the Glasgow Intl Ap weather station 14.4 miles away. The snowiest month is usually January (9.8 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 1.5 | 5.9 | 8.3 | 9.8 | 6.2 | 5.6 | 2.5 | 0.9 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover St. Marie?
The closest NEXRAD Doppler radar is KGGW (Glasgow, MT), about 15 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. Marie | View |
|---|---|---|---|
| KGGW Glasgow, MT | 15 mi south-southwest | 800 ft | Excellent — the lowest scan sees close to the ground |
| KBLX Billings, MT | 202 mi south-southwest | 29,800 ft | Limited — the beam overshoots the lowest part of storms |
| KTFX Great Falls, MT | 236 mi west-southwest | 38,600 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. Marie
Since 1950, NOAA has recorded 22 tornadoes within 25 miles of St. Marie, 4 of them EF2/F2 or stronger. Most came in July and June. The strongest was an F2 on August 4, 1962, which passed about 20 miles north of town. The most recent was an EF0 on July 12, 2024, which touched down about 17 miles north-northeast of town.
Hail: 145 reports of 1-inch or larger hail within 25 miles since 1955, 27 of them 2 inches or more; the largest was 4.50-inch hail on July 21, 1999.
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. Marie'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. Marie radar FAQ
Where is the nearest weather radar to St. Marie, MT?
KGGW (Glasgow, MT), about 15 miles south-southwest. KBLX (Billings, MT) is 202 miles away and also covers the area.
Does radar show snow in St. Marie?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over St. Marie the lowest scan from KGGW is about 800 ft up.
Is TALON's radar for St. Marie 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. Marie, follow it right away — see watch vs. warning.
Radar for nearby towns
- Glasgow, MT radar 16 mi
- Wolf Point, MT radar 45 mi