Dune weather summary: Buttercup Valley, 95°, 6 mph, active alert: Extreme Heat Warning. Dumont Dunes, 87°, 8 mph, active alert: Extreme Heat Warning. Hungry Valley SVRA, 68°, 20 mph. Imperial Sand Dunes / Glamis, 93°, 1 mph, active alert: Extreme Heat Warning. Johnson Valley OHV Area, 78°, 0 mph, active alert: Extreme Heat Warning. Oceano Dunes / Pismo Beach, 54°, 3 mph, active alert: Beach Hazards Statement. Ocotillo Wells SVRA, 97°, 0 mph, active alert: Extreme Heat Warning.