Johnson City, TN Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Johnson City, TN in one place.
Sunny, with a high near 77. West wind 0 to 5 mph.
Local Weather Overview
This forecast page for Johnson City, TN is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 23, 2026 7:49 PM EDT.
The active forecast window currently covers Aug 24 to Aug 29, 2026 for Johnson City, TN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 24 to Aug 29, 2026
- Latest sync
- Aug 23, 2026 7:49 PM EDT
- Forecast office
- MRX
- Source
- NOAA / NWS
Daily Outlook
This Week in Johnson City
Wednesday looks like the warmest upcoming period in Johnson City at 83 degrees F.
Monday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Monday at about 0 to 5 mph W.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 7:49 PM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- MRX
- Radar station
- KMRX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 57. Southwest wind 0 to 5 mph.
Sunny, with a high near 80. Southwest wind 0 to 5 mph.
Mostly clear, with a low around 61. North wind 0 to 5 mph.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 83. Southwest wind 0 to 5 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64. Chance of precipitation is 20%.
A slight chance of rain showers before 8am, then showers and thunderstorms likely. Partly sunny, with a high near 81. Chance of precipitation is 70%.
Showers and thunderstorms likely before 2am. Partly cloudy, with a low around 64. Chance of precipitation is 70%.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Aug 24
|
Sunny
|
77°F |
0 to 5 mph
W
|
|
Monday Night
Aug 24
|
Partly Cloudy
|
57°F |
0 to 5 mph
SW
|
|
Tuesday
Aug 25
|
Sunny
|
80°F |
0 to 5 mph
SW
|
|
Tuesday Night
Aug 25
|
Mostly Clear
|
61°F |
0 to 5 mph
N
|
|
Wednesday
Aug 26
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
83°F |
0 to 5 mph
SW
|
|
Wednesday Night
Aug 26
|
Slight Chance Showers And Thunderstorms
|
64°F |
0 to 5 mph
S
|
|
Thursday
Aug 27
|
Showers And Thunderstorms Likely
|
81°F |
0 to 5 mph
SW
|
|
Thursday Night
Aug 27
|
Showers And Thunderstorms Likely
|
64°F |
0 mph
|
|
Friday
Aug 28
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
81°F |
0 to 5 mph
SW
|
|
Friday Night
Aug 28
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
63°F |
0 to 5 mph
S
|
|
Saturday
Aug 29
|
Mostly Sunny then Chance Showers And Thunderstorms
|
82°F |
0 mph
|
|
Saturday Night
Aug 29
|
Chance Showers And Thunderstorms then Mostly Clear
|
64°F |
0 to 5 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Johnson City.
