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Mountain City, TN 37688 Weather

It is 57°F and clear in Mountain City, TN 37688, observed at 7:35 PM EDT. Tonight: Clear, low 48°F. Hourly and 7-day forecast from the National Weather Service. Times are local (EDT).

Mountain City, TN 37688 current weather

57°F

Clear

H -- / L 48°Feels like 57°

  • No rain expected in the next 12 hours

Observed at Abingdon (12.7 mi away), 10/29/2026, 7:35 PM EDT

Hourly forecast

NWS, updated 10/29/2026, 4:06 PM PT

  1. Now55°
  2. 9 PM54°
  3. 10 PM53°
  4. 11 PM52°
  5. 12 AM51°Fri
  6. 1 AM51°
  7. 2 AM50°
  8. 3 AM50°
  9. 4 AM50°
  10. 5 AM50°
  11. 6 AM49°
  12. 7 AM49°
  13. 8 AM48°
  14. 9 AM50°
  15. 10 AM57°
  16. 11 AM62°
  17. 12 PM65°
  18. 1 PM66°
  19. 2 PM68°
  20. 3 PM69°
  21. 4 PM69°
  22. 5 PM68°
  23. 6 PM66°
  24. 7 PM62°
  25. 8 PM57°
  26. 9 PM55°
  27. 10 PM54°
  28. 11 PM53°
  29. 12 AM52°Sat
  30. 1 AM50°
  31. 2 AM50°
  32. 3 AM49°
  33. 4 AM49°
  34. 5 AM49°
  35. 6 AM48°
  36. 7 AM48°
  37. 8 AM47°
  38. 9 AM49°
  39. 10 AM54°
  40. 11 AM59°
  41. 12 PM62°
  42. 1 PM63°
  43. 2 PM64°
  44. 3 PM64°
  45. 4 PM64°
  46. 5 PM62°
  47. 6 PM60°
  48. 7 PM57°

7-day forecast

Tap a day for details

  • Today10/29Low 48°High

    Tonight: Clear, with a low around 48. Wind around 0 mph.

    Clear
  • Fri10/30Low 47°High 69°

    Friday: Sunny, with a high near 69. North wind 0 to 5 mph.

    Friday Night: Partly cloudy, with a low around 47. East wind around 5 mph.

    Sunny
  • Sat10/31Low 47°High 64°

    Saturday: Partly sunny, with a high near 64. Southeast wind 5 to 10 mph.

    Saturday Night: Mostly cloudy, with a low around 47. Southeast wind around 5 mph.

    Partly Sunny
  • Sun11/118% chance of precipitationLow 47°High 63°

    Sunday: Mostly cloudy, with a high near 63. Southeast wind around 5 mph.

    Sunday Night: A slight chance of rain showers after 7pm. Mostly cloudy, with a low around 47. Southeast wind around 5 mph. Chance of precipitation is 20%.

    Mostly Cloudy
  • Mon11/218% chance of precipitationLow 46°High 64°

    Monday: A slight chance of rain showers before 7am. Mostly cloudy, with a high near 64. Chance of precipitation is 20%.

    Monday Night: Partly cloudy, with a low around 46.

    Slight Chance Rain Showers then Mostly Cloudy
  • Tue11/315% chance of precipitationLow 53°High 67°

    Tuesday: Mostly sunny, with a high near 67.

    Tuesday Night: A slight chance of rain showers after 1am. Partly cloudy, with a low around 53. Chance of precipitation is 20%.

    Mostly Sunny
  • Wed11/459% chance of precipitationLow 55°High 66°

    Wednesday: A chance of rain showers. Mostly sunny, with a high near 66. Chance of precipitation is 30%.

    Wednesday Night: Rain showers likely. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Chance Rain Showers
  • Thu11/562% chance of precipitationLow High 64°

    Thursday: Rain showers likely. Mostly cloudy, with a high near 64.

    Rain Showers Likely

Forecast for 36.540, -81.891 from the NWS MRX office, updated 10/29/2026, 4:06 PM PT · Official forecast on weather.gov

Forecaster's discussionIssued 10/29/2026, 1:22 PM EDT

: New DISCUSSION, AVIATION:

Key messages

Updated at 103 PM EDT Thu Oct 29 2026

- Dry conditions will continue for the next several days with mild highs in the 70s and seasonally cool lows in the 40s.

- Chance of light rain on Sunday and Sunday night, mainly in the Plateau and southern TN Valley.

- A return to dry and mild weather for the first couple of days next week, then rain chances return for midweek.

Discussion

Issued at 103 PM EDT Thu Oct 29 2026

For the next few days, the pleasant fall weather will continue. A mid/upper level shortwave ridge will be crossing the region through Friday, with a low level ridge over the Appalachians. The main concern each day will be early morning fog, primarily near area lakes and rivers.

The upper ridge shifts east and a shortwave trough approaches from the west on Sunday. Moisture and lift will be mainly in the mid and upper levels, while the sub-850 mb layer remains dry for the eastern half of the area. Some light rain will likely reach the ground in the Plateau and southern TN Valley, maybe a tenth to a quarter inch, but NE sections will probably only see a trace to a couple hundredths through Sunday night. Overcast mid/high clouds on Sunday will hold high temperatures back in the 60s in most spots.

Dry and mild conditions return Monday and continue through at least Tuesday, possibly Wednesday. Another stronger system may bring higher rain chances to the area late Wednesday and Thursday. The ECMWF shows a deep, negatively tilted trough crossing the Plains and MS Valley in this time frame. One thing to keep an eye on with this system will be mountain wave winds, mainly Wednesday night.

Aviation

(18Z TAFS) Issued at 103 PM EDT Thu Oct 29 2026

Not much has changed in the weather pattern over the past few days, so fog will be possible again at CHA and TRI tonight. There is a chance that high clouds spreading over the area may reduce fog potential tonight, which raises uncertainty. For now, will include a TEMPO at both sites for a little MVFR fog, but lower conditions are certainly possible with later TAF issuances.

Preliminary point temps/pops

Chattanooga Airport, TN 50 79 56 75 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 48 78 54 75 / 0 0 0 0 Oak Ridge, TN 47 77 54 74 / 0 0 0 0 Tri Cities Airport, TN 43 76 49 72 / 0 0 0 0

Watches, warnings and advisories

NC: NONE. TN: NONE. VA: NONE.

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now55°Clear0%0 mph
  2. 9 PM54°Clear0%0 mph
  3. 10 PM53°Clear0%0 mph
  4. 11 PM52°Clear0%0 mph
  5. 12 AM51°Clear0%0 mph
  6. 1 AM51°Mostly Clear0%0 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Mountain City, TN 37688 right now?
The latest observation from Abingdon was 57°F and clear, reported at 10/29/2026, 7:35 PM EDT.
Will it rain in Mountain City, TN 37688 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What time is sunrise and sunset in Mountain City, TN 37688 today?
Sunrise is about 7:48 AM EDT and sunset is about 6:34 PM EDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Mountain City, TN 37688?
At Mtn City 2, the 1991 to 2020 normal high in October is 68°F and the normal low is 41°F.

Nearby hazards

Tennessee hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast tomorrow (Ashe County)
53ModeratePM2.5
AQI forecast tomorrow (Ashe County)
40GoodOzone

UV index guide · Air quality

Drought

By county

Johnson County, week of 10/27/2026

92% of the county is abnormally dry. No drought.

Sun and moon

Local time, center of the area

Sunrise
7:48 AM
Sunset
6:34 PM
Daylight
10 hr 46 min
Moon
Waning Gibbous 84% lit
First light (civil dawn)
7:21 AM
Last light (civil dusk)
7 PM
Moonrise
9:09 PM
Moonset
11:52 AM

Normal October weather

Climate

Normal October high 68°, low 41°, precipitation 2.81 in for the month. 1991 to 2020 normals at Mtn City 2, 7 mi away.

Other places nearby

Data sources

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About this data

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