See more current weather Plano Extended Forecast with high and low temperatures °F Sep 17 – Sep 23. Now 56 °F Clear. Feels Like: 53 °F Forecast: 69 / 54 °F Wind: 13 mph ↑ from North Upcoming 5 hours See more hour-by-hour weather Forecast for the next 48 hours 14 day forecast, day-by-day Hour-by-hour forecast for next week Forecast for the next 2 weeks Detailed forecast for 14 days Need some help?.