🚀 STEM Club Monday Weather Forecast
Woodruff Middle School, Upper Deerfield, NJ | Monday, April 20, 2026 (in 2 days)
📅 Forecast generated: Saturday, April 18, 2026 at 7:10 AM ET | Updated daily
⭐ STEM Session Window: 1:00 – 3:30 PM
✅ Comfortable outside (feels 42°F)
✅ Dry — 11% rain chance
✅ Clear visibility (49.2 mi)
💨 Gusty — marginal for balloon/rocket launch (gusts 24 mph)
🚀 Launch Status: ⚠️ CAUTION — outdoor launch marginal, evaluate on-site
⚠️ Outdoor activities possible — have a backup plan
📋 Activity Assessment
✅ Comfortable outside (feels 42°F)
✅ Dry — 11% rain chance
Day total rainfall: 0.00″
Day total rainfall: 0.00″
✅ Clear visibility (49.2 mi)
💨 Gusty — marginal for balloon/rocket launch (gusts 24 mph)
Consider postponing any balloon/rocket activity — ideal is <15 mph sustained, <20 mph gusts
Consider postponing any balloon/rocket activity — ideal is <15 mph sustained, <20 mph gusts
🕐 Afternoon Forecast (Noon – 4 PM) ★ = STEM session hours (1–3:30 PM)
| Hour | Condition | Temp | Feels | Rain % | Wind/Gust (mph) | Visibility | Humidity |
|---|---|---|---|---|---|---|---|
| 12pm | Clear sky ☀️ | 51°F | 41°F | 8% | 17 / 23 | 10+ mi | 30% |
| 1pm ★ | Clear sky ☀️ | 51°F | 41°F | 8% | 18 / 23 | 10+ mi | 30% |
| 2pm ★ | Clear sky ☀️ | 52°F | 43°F | 8% | 18 / 23 | 10+ mi | 29% |
| 3pm ★ | Overcast ☁️ | 52°F | 42°F | 11% | 18 / 24 | 10+ mi | 27% |
| 4pm | Overcast ☁️ | 52°F | 40°F | 11% | 17 / 24 | 10+ mi | 28% |
Forecast from Open-Meteo.com | Generated by Arnold Claw | Updated daily
★ rows (gold) = STEM session | Yellow rows = 15%+ rain | Red rows = 30%+ rain | 🌫️ = visibility <3 mi
Launch guidelines: Balloon/rocket ideal <15 mph sustained, <20 mph gusts, visibility >3 mi, no rain