Tennessee · NWS MRX office

Knoxville, TN weather

It is 48°F at Knoxville, McGhee Tyson Airport as of Oct 28, 5:05 AM EDT. Overnight: Mostly Cloudy, low near 49°F. Forecast from the National Weather Service, issued Oct 28, 2:26 AM EDT.

Updated Oct 28, 5:14 AM EDT (snapshot)

Current conditions

Temperature

48°F

Cloudy

Wind

Calm

Humidity 93% · dew point 46°F

Pressure · visibility

—

Visibility 10 mi

Observed at Knoxville, McGhee Tyson Airport (KTYS), Oct 28, 5:05 AM EDT. Station readings can lag or be missing.

Alerts for this area

No active NWS alerts cover the Knoxville forecast zone right now.

Around the NWS MRX forecast area

No active alerts in zones served by the MRX office near Knoxville.

From the alert snapshot of Oct 28, 2026, 5:12 AM EDT. No alerts are active anywhere in Tennessee.

For official warnings, check weather.gov and your local authorities. OpenForecast repeats National Weather Service alerts and may be delayed or incomplete. Follow instructions from emergency officials.

Next 24 hours

Hourly forecast for Knoxville (local time)
TimeTempForecastPrecip. chanceWind
Wed 7 AM50°FCloudy0% 0 mph
Wed 8 AM50°FCloudy0% 0 mph
Wed 9 AM51°FCloudy0% 0 mph
Wed 10 AM55°FMostly Cloudy0% 0 mph
Wed 11 AM59°FMostly Cloudy1% 0 mph
Wed 12 PM63°FMostly Cloudy0% 0 mph
Wed 1 PM69°FPartly Sunny0% 0 mph
Wed 2 PM72°FMostly Cloudy0% 0 mph
Wed 3 PM73°FPartly Sunny0% 0 mph
Wed 4 PM74°FMostly Sunny0% 0 mph
Wed 5 PM73°FMostly Sunny0% 0 mph
Wed 6 PM72°FMostly Clear0% 0 mph
Wed 7 PM68°FPartly Cloudy0% 0 mph
Wed 8 PM61°FMostly Cloudy0% 0 mph
Wed 9 PM59°FPartly Cloudy0% 0 mph
Wed 10 PM57°FMostly Clear0% 0 mph
Wed 11 PM55°FMostly Clear0% 0 mph
Thu 12 AM53°FMostly Clear0% 0 mph
Thu 1 AM52°FMostly Clear0% 0 mph
Thu 2 AM51°FMostly Clear0% 0 mph
Thu 3 AM50°FMostly Clear0% 0 mph
Thu 4 AM50°FMostly Clear0% 0 mph
Thu 5 AM48°FPartly Cloudy0% 0 mph
Thu 6 AM48°FPatchy Fog0% 0 mph

Hourly values come from the NWS gridded forecast for the 2.5 km grid square that covers the city's center point. Conditions elsewhere in Knoxville can differ.

7-day forecast

Overnight

Low 49°F

Mostly cloudy, with a low around 49. Wind around 0 mph.

Wednesday

High 74°F·Low 46°F

Mostly cloudy, with a high near 74. Northeast wind around 0 mph.

Wednesday Night: Mostly clear, with a low around 46. Northeast wind around 0 mph.

Thursday

High 75°F·Low 48°F

Patchy fog before 10am. Sunny, with a high near 75. Northeast wind around 0 mph.

Thursday Night: Mostly clear, with a low around 48. Northeast wind around 0 mph.

Friday

High 78°F·Low 55°F

Mostly sunny, with a high near 78. Northeast wind 0 to 5 mph.

Friday Night: Mostly cloudy, with a low around 55. Northeast wind 0 to 5 mph.

Saturday

High 75°F·Low 56°F

Mostly cloudy, with a high near 75.

Saturday Night: A chance of rain showers after 1am. Cloudy, with a low around 56. Chance of precipitation is 30%.

Sunday

High 68°F·Low 56°F

Rain showers likely. Cloudy, with a high near 68. Chance of precipitation is 60%.

Sunday Night: Rain showers likely. Cloudy, with a low around 56. Chance of precipitation is 60%.

Monday

High 73°F·Low 57°F

A chance of rain showers. Cloudy, with a high near 73. Chance of precipitation is 30%.

Monday Night: A slight chance of rain showers. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.

Tuesday

High 75°F

A chance of rain showers. Partly sunny, with a high near 75.

Nearby cities

Other cities in Knox County

See every city we cover in Tennessee, or check all active alerts.

About this forecast

Forecast office
Knoxville is served by the National Weather Service MRX forecast office, forecast zone TNZ069, county zone TNC093.
Location used
The Census Bureau's internal point for Knoxville (35.9707, -83.9493), in Knox County. Population: 198,722 (2024 estimate), number 3 of the 32 Tennessee cities on this site.
Radar
Nearest NWS radar: KMRX. View it on radar.weather.gov.

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Sources

  • Forecast, hourly forecast, observations and alerts: National Weather Service API, api.weather.gov/points/35.9707,-83.9493 (forecast issued Oct 28, 2:26 AM EDT).
  • Official forecast page: forecast.weather.gov.
  • City location and population: U.S. Census Bureau, Vintage 2024 population estimates and 2024 Gazetteer files.
  • Snapshot taken Oct 28, 2026. The NWS and Census Bureau do not endorse OpenForecast.

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