🌱 US Weather Warriors GrowCast — Saturday, July 4, 2026
Dangerous heat and humidity dominate the holiday across Delmarva, with scattered afternoon storms possible in the north.
Today's Weather Snapshot: Highs range from 87°F at Ocean City to 101°F in Salisbury, with lows near 75°F. Extreme Heat Warnings and Heat Advisories are in effect, alongside Air Quality Alerts. Winds stay manageable near 9-14 mph. Humidity is oppressive — several DEOS stations reporting 92-99% RH this morning. Thunderstorm chances run highest north (Wilmington 70% PoP) and taper south (Cape Charles 12%).
Soil & Recent Rainfall: Six DEOS stations show 2-inch soil temps of 77.8-83.8°F, averaging 81.4°F. No measurable rain in the last 24 hours.
Best Outdoor Work Window: Work before 9 AM. After that, heat index climbs into dangerous territory, and northern zones face rising storm chances by mid-afternoon. Sunday morning likely offers a similar early window if the pattern holds.
Planting & Transplanting: Soil temps are well above the 60-65°F threshold for warm-season crops, but planting_window is Delay — heat stress and storm risk make today a poor day to set out transplants. Hold tender transplants until temperatures moderate.
Watering & Irrigation: No rain fell in the past 24 hours, and none has accumulated at DEOS sites — but with heavy rainfall signals in play and thunderstorms possible, hold irrigation today. Reassess Sunday morning based on what actually falls overnight.
For Gardeners: Prioritize deep morning watering of containers, tomatoes, peppers, and cucurbits before the heat peaks. Skip transplanting, pruning, and any renovation work — plants under this heat load can't recover from added stress. Shade cloth over lettuces or recently set transplants earns its keep today.
For Farmers & Growers: Field workability is Poor due to heat and storm timing, though wind is favorable for spray if you can beat morning inversions and afternoon convection. Push heavy labor and hay operations to early morning; watch northern counties for storm cutoffs. Livestock need shade and water access checked twice today.
Looking Ahead (6-10 day signal): CPC 6-10 day leans above-normal temperatures; 8-14 day trends cooler with above-normal precipitation, and drought is absent region-wide.
Bottom Line: Work at dawn, hydrate everything, and let the fireworks be the only thing you push hard today.
— US Weather Warriors #DelmarvaWeather #GardenWeather #FarmWeather