Weather World
City of Lavon, TXLavon, TX 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Lavon, TX Weather Forecast
Lavon, TX Weather Forecast Date: 1209 PM CDT Wed Sep 09 2026
The area/counties/county of: Collin, including the cities of: Plano, Mckinney, Allen, and Frisco.or toggle through each period.
This Afternoon... Sunny, hot with highs around 100. South winds 5 to 10 mph. Heat index values up to 106.
Tonight... Clear. Lows in the upper 70s. South winds 5 to 10 mph.
Thursday... Sunny. A 50% chance of showers and thunderstorms in the afternoon. Hot with highs in the upper 90s. South winds around 5 mph. Heat index values up to 105.
Thursday Night... Partly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers and thunderstorms after midnight. Lows in the upper 70s. East winds around 5 mph, becoming southeast after midnight. Chance of rain 40%.
Friday... Mostly sunny with a 20% chance of showers and thunderstorms. Hot with highs in the upper 90s. South winds 5 to 10 mph. Heat index values up to 107.
Friday Night... Clear. Lows in the upper 70s.
Saturday... Sunny, hot with highs in the upper 90s. Heat index values up to 110 in the afternoon.
Saturday Night... Clear. Lows in the upper 70s.
Sunday... Sunny, hot with highs in the upper 90s. Heat index values up to 110 in the afternoon.
Sunday Night... Mostly clear. Lows in the upper 70s.
Monday... Sunny, hot with highs in the upper 90s. Heat index values up to 110 in the afternoon.
Monday Night... Mostly clear. Lows in the upper 70s.
POP = Probability of Precipitation
Lavon Radar Loop
Use the map search tool if you want to place a location marker on the radar map...