Greencastle, PA Live Doppler Radar
Live radar for Greencastle, Franklin County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Greencastle?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 151 days in the Franklin forecast zone and Franklin County — the most common reported hazard around Greencastle, mostly in June and July. Next come heavy snow & winter storms (61 days) and flash flooding (43 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 151 | Jun 2026 | Jan 19, 1996 · $500,000 damage |
| Heavy snow & winter storms | 61 | Jan 2026 | Jan 6, 2024 · $60,000 damage |
| Flash flooding | 43 | Aug 2025 | Jun 18, 1996 · $1.0 million damage |
| Flooding | 16 | May 2025 | — |
| High winds | 15 | Apr 2021 | May 3, 1997 · 1 death |
| Excessive heat | 8 | Jul 2025 | — |
| Ice storms & sleet | 6 | Jan 2014 | — |
| Extreme cold & wind chill | 4 | Jan 2025 | — |
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 Franklin forecast zone and Franklin County; damage is as reported, not adjusted for inflation.
How much snow does Greencastle get?
A normal year brings about 31 inches of snow to Greencastle, based on NOAA's 1991–2020 climate normals for the Chambersburg 1 Ese weather station 11 miles away. The snowiest month is usually January (10.0 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.0 | 1.0 | 5.5 | 10.0 | 8.0 | 6.0 | 0.3 | 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 Greencastle?
The closest NEXRAD Doppler radar is KLWX (Sterling, MD), about 58 miles south-southeast. 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 Greencastle | View |
|---|---|---|---|
| KLWX Sterling, MD | 58 mi south-southeast | 4,300 ft | Good — most storms and steady rain or snow show clearly |
| KCCX State College, PA | 80 mi north | 6,800 ft | Fair — the beam can pass over shallow snow and low-level rotation |
| KDOX Dover AFB, DE | 139 mi east-southeast | 16,100 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 Greencastle
Since 1950, NOAA has recorded 49 tornadoes within 25 miles of Greencastle, 3 of them EF2/F2 or stronger. Most came in June and July. The strongest was an F3 on April 16, 1961, which touched down about 21 miles north-northeast of town. The most recent was an EF0 on June 5, 2024, which touched down about 21 miles south of town.
Hail: 172 reports of 1-inch or larger hail within 25 miles since 1955, 9 of them 2 inches or more; the largest was 4.00-inch hail on August 7, 2023.
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 Greencastle'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.
Greencastle radar FAQ
Where is the nearest weather radar to Greencastle, PA?
KLWX (Sterling, MD), about 58 miles south-southeast. KCCX (State College, PA) is 80 miles away and also covers the area.
Does radar show snow in Greencastle?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Greencastle the lowest scan from KLWX is about 4,300 ft up.
Is TALON's radar for Greencastle 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 Greencastle, follow it right away — see watch vs. warning.
Radar for nearby towns
- Waynesboro, PA radar 8 mi
- Mont Alto, PA radar 10 mi
- Mercersburg, PA radar 10 mi
- Chambersburg, PA radar 10 mi
- McConnellsburg, PA radar 17 mi
- Carroll Valley, PA radar 18 mi
- Shippensburg, PA radar 21 mi
- Gettysburg, PA radar 26 mi
- Biglerville, PA radar 27 mi
- Newville, PA radar 31 mi