Harriman, TN Weather

Roane County6:41 AM EDT35.93°N, 84.55°WElevation 801 ft

Current conditions

Sunny
44°
Sunny
Feels like 44°
High 72°·Low 44°
WindCalm
Humidity100%
Dew point44°
Cloud cover7%
Sunrise7:55 AM
Sunset6:51 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day

  • Sunday

    Sunny, with a high near 72. Northeast wind around 0 mph.

  • Sunday Night

    Mostly clear, with a low around 44.

  • Monday

    Sunny, with a high near 72.

National Weather Service forecast updated 2 days ago.

Hourly

Hourly forecast
  1. Now Sunny 44°
  2. 7 AM Sunny 43°
  3. 8 AM Sunny 44°
  4. 9 AM Sunny 47°
  5. 10 AM Sunny 52°
  6. 11 AM Sunny 57°
  7. 12 PM Sunny 61°
  8. 1 PM Sunny 65°
  9. 2 PM Sunny 69°
  10. 3 PM Sunny 71°
  11. 4 PM Sunny 72°
  12. 5 PM Sunny 71°
  13. 6 PM Clear 68°
  14. 7 PM Clear 64°
  15. 8 PM Mostly Clear 59°
  16. 9 PM Mostly Clear 55°
  17. 10 PM Mostly Clear 52°
  18. 11 PM Mostly Clear 50°
  19. Mon12 AM Mostly Clear 49°
  20. 1 AM Mostly Clear 48°
  21. 2 AM Mostly Clear 48°
  22. 3 AM Mostly Clear 47°
  23. 4 AM Mostly Clear 47°
  24. 5 AM Mostly Clear 46°

10-day forecast

Details
  1. ThuOct 22 Sunny Sunny43°72°
  2. FriOct 23 Sunny Sunny42°71°
  3. SatOct 24 Sunny Sunny43°73°
  4. TodayOct 25 Sunny Sunny44°72°
  5. MonOct 26 Sunny Sunny45°72°
  6. TueOct 27 Mostly Sunny Mostly Sunny47°72°
  7. WedOct 28 Partly Sunny Partly Sunny46°71°
  8. ThuOct 29 Partly cloudy Partly cloudy53°74°
  9. FriOct 30 Sunny Sunny46°67°
  10. SatOct 31 Partly cloudy Partly cloudy44°71°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

Weather news in Tennessee

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Air quality

58
Moderate
Fine particles (PM2.5)

Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Forecast

  • SunModerate (51)
  • MonModerate (51)

Knoxville, TN reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:55 AM
Sunset 6:51 PM
Daylight 10 h 56 min (−2 min 4 s tomorrow)
Waxing Gibbous · 99% lit
Moonrise 6:13 PM Moonset 7:16 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low69° / 45°
Month to date2.71 in (normal 2.38 in)

Oak Ridge Area, records since 1947. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in MRX, issued 4 hrs ago

Key Messages

Updated at 132 AM EDT Sun Oct 25 2026

- Dry weather will continue over the forecast period with cool mornings and mild afternoon highs.

- Low relative humidity values in the 30s to upper 20s are also expected most days but with light winds overall.

Discussion

Issued at 132 AM EDT Sun Oct 25 2026

Currently, a strong upper ridge of high pressure is centered to our southwest over the southern Mississippi River Valley with surface high pressure over New England. This will continue to promote subsidence with cool morning lows and mild daytime highs. Efficient mixing will allow RH's to drop into the 30s and upper 20s with weak flow and MSLP gradient keeping winds light. Early in the week, the ridge will progress eastward with surface high pressure shifting almost directly over the area. The height rises will lead to a slight warming trend and continued daytime mixing keeping RH values low.

This same general pattern will continue through the end of the week and into the weekend for Halloween with additional height rises potentially pushing highs closer to 80 degrees for some. Otherwise, low RHs and light winds will keep limited fire weather concerns in the forecast each day, but thankfully only about 10 percent of the area is in drought at this time.

Aviation

(06Z TAFS) Issued at 132 AM EDT Sun Oct 25 2026

Surface high pressure and upper level ridging to persist through the TAF term. Thus, VFR, dry, mostly sunny/clear skies, and light winds or calm conditions can be expected.

Preliminary Point Temps

Chattanooga Airport, TN 73 47 74 47 / 0 0 0 0 Knoxville McGhee Tyson Airport, TN 72 45 73 45 / 0 0 0 0 Oak Ridge, TN 72 45 73 45 / 0 0 0 0 Tri Cities Airport, TN 70 40 72 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 4Conservative index and reflects what the press published. Terms of use.