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Johnson City, TN 37604 Weather
Current conditions
Observed at Bristol / Johnson / Kingsport, Tri-City Regional Airport · 1 hr ago
Forecast
10-day-
Today
Sunny. High near 75, with temperatures falling to around 71 in the afternoon. North wind 0 to 5 mph.
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Tonight
Clear, with a low around 42. Northeast wind around 0 mph.
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Wednesday
Sunny. High near 74, with temperatures falling to around 70 in the afternoon. Northeast wind 0 to 5 mph.
National Weather Service forecast updated 9 hrs ago.
Hourly
Hourly forecast- Now73°
- 5 PM71°
- 6 PM69°
- 7 PM63°
- 8 PM59°
- 9 PM57°
- 10 PM54°
- 11 PM52°
- Wed12 AM50°
- 1 AM48°
- 2 AM47°
- 3 AM45°
- 4 AM45°
- 5 AM44°
- 6 AM43°
- 7 AM42°
- 8 AM42°
- 9 AM45°
- 10 AM52°
- 11 AM58°
- 12 PM62°
- 1 PM66°
- 2 PM68°
- 3 PM70°
10-day forecast
Details- TodayOct 20Sunny42°75°
- WedOct 21Sunny42°74°
- ThuOct 22Sunny41°72°
- FriOct 23Sunny41°73°
- SatOct 24Sunny39°69°
- SunOct 25Sunny42°71°
- MonOct 26Mostly Sunny45°71°
- TueOct 27Cloudy47°70°
- WedOct 28Cloudy47°71°
- ThuOct 29Mostly sunny50°69°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Johnson City
More weather news-
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Another nice fall day on tap for the Tennessee ValleyLocal 3 News Good morning! We are waking up to quiet conditions and chilly temperatures in the 30s and 40s. Highs will rebound to the mid 70s this afternoon, with plenty of sunshine. It is shaping up to be another…
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- First fall frost possible this weekend for part of Middle Tennessee
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Air quality
Air quality is satisfactory, and air pollution poses little or no risk.
Forecast
- TueGood (39)
- WedGood (47)
- ThuModerate (51)
Tri-Cities, TN reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyBristol-Johnson City Area, records since 1937. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Kingsport 31 km
- Bristol 36 km
- Bristol 36 km
- Greeneville 44 km
- Elizabethton 16 km
- Bloomingdale 32 km
- Chuckey 29 km
- Abingdon 57 km
- Colonial Heights 22 km
- Church Hill 38 km
- Erwin 19 km
- Mount Carmel 36 km
Forecasters' discussion
From the National Weather Service office in MRX, issued 9 hrs ago
Key Messages
Updated at 715 AM EDT Tue Oct 20 2026
- Dry weather dominates the forecast period, with cool mornings and pleasant afternoons each day. Afternoon relative humidity will remain on the lower side as well.
Discussion
Issued at 138 AM EDT Tue Oct 20 2026
Isolated patchy frost for parts of far northeast TN and southwest VA this morning. Increasing morning lows will diminish the potential for frost development for most. However, dense fog near waterways could be possible with colder air over top warmer waters in lakes and rivers.
For the week ahead, longwave troughing will remain well into Canada with ridging poking north between a closed upper low off of the Mid- Atlantic and another closed low off of the west coast. A pseudo- Omega block pattern. The western low eventually phases with the mean flow, meanwhile the Atlantic one expected to bring coastal issues to parts of the Eastern Seaboard due to hardly any movement, will become enveloped and shunted east towards the end of the week. No impacts here except persistent upper level ridging and surface high pressure.
Highs will remain in the low to mid (some upper) 70s range the rest of the forecast period into early next week. A general wash/rinse/repeat each day with light winds, mostly sunny/clear skies, low humidity, and no precipitation for at least the foreseeable future.
Aviation
(12Z TAFS) Issued at 715 AM EDT Tue Oct 20 2026
VFR TAFs expected to continue with persistence the rule. A weak impulse to bring high clouds today but no concerns. Cannot rule out a weak gust at KCHA, but winds expected to remain light otherwise.
Preliminary Point Temps
Chattanooga Airport, TN 74 49 76 49 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 75 46 76 45 / 0 0 0 0 Oak Ridge, TN 75 47 76 46 / 0 0 0 0 Tri Cities Airport, TN 74 40 74 40 / 0 0 0 0
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.