Roundup, MT Live Doppler Radar

Live radar for Roundup, Musselshell County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.

Open live radar for Roundup What TALON shows

What weather hits Roundup?

Since 1996, the National Weather Service has logged heavy snow or a winter storm on 73 days in the Musselshell forecast zone and Musselshell County — the most common reported hazard around Roundup, mostly in March and February. Next come high winds (73 days) and damaging thunderstorm winds (32 days).

Hazard	Days reported	Most recent	Worst on record
Heavy snow & winter storms	73	Mar 2026	—
High winds	73	May 2026	—
Damaging thunderstorm winds	32	Jun 2024	Aug 14, 1998 · $10,000 damage
Flash flooding	19	Jun 2023	Jul 3, 1998 · $200,000 damage
Flooding	8	Jul 2025	May 23, 2011 · $6.0 million damage
Wildfires	5	Sep 2020	—
Extreme cold & wind chill	2	Dec 2000	—
Blizzards	2	Dec 2008	—

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 Musselshell forecast zone and Musselshell County; damage is as reported, not adjusted for inflation.

How much snow does Roundup get?

A normal year brings about 24 inches of snow to Roundup, based on NOAA's 1991–2020 climate normals for the Roundup weather station in town. The snowiest month is usually December (5.6 in).

Oct	Nov	Dec	Jan	Feb	Mar	Apr	May
1.0	2.8	5.6	5.2	3.9	4.4	1.4	0.1

Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.

Which radars cover Roundup?

The closest NEXRAD Doppler radar is KBLX (Billings, MT), about 41 miles south. 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 Roundup	View
KBLX Billings, MT	41 mi south	2,700 ft	Excellent — the lowest scan sees close to the ground
KGGW Glasgow, MT	151 mi northeast	18,400 ft	Limited — the beam overshoots the lowest part of storms
KTFX Great Falls, MT	151 mi west-northwest	18,400 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 Roundup

Since 1950, NOAA has recorded 5 tornadoes within 25 miles of Roundup, 1 of them EF2/F2 or stronger. Most came in May and July. The strongest was an F2 on May 4, 1986, which touched down about 23 miles east-southeast of town. The most recent was an F0 on August 26, 2004, which touched down about 12 miles south of town.

Hail: 160 reports of 1-inch or larger hail within 25 miles since 1955, 17 of them 2 inches or more; the largest was 4.50-inch hail on June 26, 1996.

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 Roundup'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.

Roundup radar FAQ

Where is the nearest weather radar to Roundup, MT?

KBLX (Billings, MT), about 41 miles south. KGGW (Glasgow, MT) is 151 miles away and also covers the area.

Does radar show snow in Roundup?

Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Roundup the lowest scan from KBLX is about 2,700 ft up.

Is TALON's radar for Roundup 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 Roundup, follow it right away — see watch vs. warning.

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