Grass Valley, OR Live Doppler Radar

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

Open live radar for Grass Valley What TALON shows

What weather hits Grass Valley?

Since 1996, the National Weather Service has logged high winds on 20 days in the North Central Oregon forecast zone and Sherman County — the most common reported hazard around Grass Valley, mostly in January and February. Next come heavy snow & winter storms (19 days) and wildfires (9 days).

Hazard	Days reported	Most recent	Worst on record
High winds	20	Mar 2026	—
Heavy snow & winter storms	19	Feb 2024	—
Wildfires	9	Aug 2018	Jul 17, 2018 · 1 death
Excessive heat	6	Jul 2023	—
Damaging thunderstorm winds	5	Aug 2024	May 19, 2006 · $50,000 damage
Extreme cold & wind chill	3	Dec 2022	—
Ice storms & sleet	1	Dec 2022	—
Flash flooding	1	Aug 2003	—

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 North Central Oregon forecast zone and Sherman County; damage is as reported, not adjusted for inflation.

How much snow does Grass Valley get?

A normal year brings about 17 inches of snow to Grass Valley, based on NOAA's 1991–2020 climate normals for the Moro weather station 9 miles away. The snowiest month is usually December (5.7 in).

Oct	Nov	Dec	Jan	Feb	Mar	Apr	May
0.2	2.2	5.7	5.3	2.5	0.7	0.0	0.0

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

Which radars cover Grass Valley?

The closest NEXRAD Doppler radar is KPDT (Pendleton, OR), about 96 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 Grass Valley	View
KPDT Pendleton, OR	96 mi east-northeast	9,100 ft	Fair — the beam can pass over shallow snow and low-level rotation
KRTX Portland, OR	108 mi west-northwest	10,900 ft	Limited — the beam overshoots the lowest part of storms
KLGX Langley Hill, WA	200 mi northwest	29,200 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 Grass Valley

NOAA has no tornado on record within 25 miles of Grass Valley since 1950.

Hail: 7 reports of 1-inch or larger hail within 25 miles since 1955; the largest was 1.00-inch hail on August 17, 2024.

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 Grass Valley'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.

Grass Valley radar FAQ

Where is the nearest weather radar to Grass Valley, OR?

KPDT (Pendleton, OR), about 96 miles east-northeast. KRTX (Portland, OR) is 108 miles away and also covers the area.

Does radar show snow in Grass Valley?

Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Grass Valley the lowest scan from KPDT is about 9,100 ft up, so light snow from shallow clouds can be under-shown — check NWS winter alerts too.

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

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