Weather Window Planner
Day & Event Planner
Pick your city and activity to calculate the optimal 3-hour windows over the next 7 days. Every window is scored from Open-Meteo hourly forecasts with the fixed rules listed below.
Top Windows: Montreal, QC
Activity: Outdoor Event • Local timezone: America/Toronto
RANK #1Score 98
15:00 – 18:00
2026-10-11 (Local)
Optimal window
Temp18°C
Precip Risk2%
Wind Peak9 km/h
RANK #2Score 96
12:00 – 15:00
2026-10-11 (Local)
Optimal window
Temp17°C
Precip Risk1%
Wind Peak10 km/h
RANK #3Score 90
12:00 – 15:00
2026-10-12 (Local)
Optimal window
Temp16°C
Precip Risk5%
Wind Peak15 km/h
Scoring Rules & Methodology
- Precipitation: Up to 50 points deducted proportional to hourly rain probability.
- Temperature: Scored against ideal activity range (18°C to 26°C). Deductions apply linearly outside this band.
- Wind: Up to 20 points deducted when peak gusts exceed 25 km/h.
- Time Zones: Hourly timestamps are evaluated against the target city’s native timezone (America/Toronto) for daytime windows (07:00–22:00).