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: Boston, MA

Activity: Outdoor Event • Local timezone: America/New_York

Showing best 3 daytime windows
RANK #1Score 95
15:00 – 18:00
2026-10-25 (Local)

Optimal window

Temp62°F
Precip Risk1%
Wind Peak4 mph
RANK #2Score 94
12:00 – 15:00
2026-10-25 (Local)

Optimal window

Temp61°F
Precip Risk0%
Wind Peak4 mph
RANK #3Score 93
12:00 – 15:00
2026-10-20 (Local)

Optimal window

Temp60°F
Precip Risk0%
Wind Peak13 mph

Scoring Rules & Methodology

  • Precipitation: Up to 50 points deducted proportional to hourly rain probability.
  • Temperature: Scored against ideal activity range (64°F to 79°F). Deductions apply linearly outside this band.
  • Wind: Up to 20 points deducted when peak gusts exceed 16 mph.
  • Time Zones: Hourly timestamps are evaluated against the target city’s native timezone (America/New_York) for daytime windows (07:00–22:00).