SXUS41 KLWX 190900 RECLWX VAZ507-508-191300- Forecast for Shenandoah National Park Above 2000 Feet National Weather Service Baltimore MD/Washington DC 500 AM EDT Sun Apr 19 2026 ...FREEZE WATCH IN EFFECT FROM LATE MONDAY NIGHT THROUGH TUESDAY MORNING... .REST OF THE OVERNIGHT...Patchy fog. Numerous showers. Lows in the mid 40s. Breezy. .TODAY...Much cooler. Cloudy in the morning, then clearing. Showers in the morning. Highs around 50. Breezy. .TONIGHT...Mostly clear. Lows in the upper 30s. .MONDAY...Mostly sunny. Highs in the mid 40s. .TUESDAY...Mostly clear. Widespread frost through the day. Lows in the upper 20s. Highs in the upper 50s. .WEDNESDAY...Partly cloudy. A chance of showers through the night. Lows in the mid 40s. Highs in the upper 60s. .THURSDAY...Mostly clear. Lows in the upper 40s. Highs in the mid 70s. $$