Johnson City, Tennessee Weather:
Tuesday, September 15, 2026
Stormy Weather
Day 82°
Night 61°
Precipitation 25 %
Wind 4 mph
Weather Forecast History
Last Year's Weather on This Day (September 15, 2025)
Partly Sunny with Showers

Day

81°

Night

59°

Wind

2 mph

UV Index

60

Precipitation

55 %