HAPPY VALLEY, TN 37878 Weather Forecast & Current Conditions
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  37878 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)
 CURRENT WEATHER

KNOXVILLE, TN
Current Weather
1:53 AM EDT JUN 9, 2026
Overcast
Mist
72°F
Feels Like: 72°F
Dewpoint: 70°F
Rel. Hum.: 93%
Visibility: 5 miles
Wind: NE at 3 mph
Pressure: 30.15 inches
Last 72 hours

Local Area Snow Depth

Tennessee Current Weather

Tennessee MOS Forecast Weather


Weather Map

(Automated weather data from NWS/FAA)
  37878 WEATHER FORECAST
10-Day model forecast maps
2025 Hurricanes

HAPPY VALLEY, TN 37878
Weather Forecast

 Snowfall Forecast pages
Snow Depth pages
REST OF TONIGHT
Mostly cloudy. A slight chance of showers and thunderstorms, then a chance of showers with a slight chance of thunderstorms late. Lows in the 60s. Light winds. Chance of rain 30 percent.
TUESDAY
Showers likely with a chance of thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. Highs in the 70s to mid 80s. Light winds. Chance of rain 80 percent.
TUESDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms in the evening. A chance of showers late. Lows in the 60s to lower 70s. Light winds. Chance of rain 50 percent.
WEDNESDAY
Mostly sunny with a chance of showers and thunderstorms. Highs in the 70s and 80s. Southwest winds 10 mph or less. Chance of rain 50 percent.
WEDNESDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Lows in the 60s to lower 70s. Light winds.
THURSDAY
Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 70s to upper 80s. Chance of rain 50 percent.
THURSDAY NIGHT
Partly cloudy in the evening, then mostly clear with a slight chance of showers after midnight. Lows in the mid 60s to lower 70s. Chance of rain 20 percent.
FRIDAY
Mostly sunny. A slight chance of showers and thunderstorms in the morning, then showers and thunderstorms likely in the afternoon. Highs in the mid 70s to lower 90s. Chance of rain 70 percent.
FRIDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms in the evening, then a slight chance of showers after midnight. Lows in the 60s to lower 70s. Chance of rain 50 percent.
SATURDAY
Partly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 70s to upper 80s. Chance of rain 40 percent.
SATURDAY NIGHT
Mostly cloudy with a chance of showers and thunderstorms in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the 60s. Chance of rain 30 percent.
SUNDAY
Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the 70s and 80s. Chance of rain 50 percent.
SUNDAY NIGHT
Mostly cloudy. A chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the 60s. Chance of rain 40 percent.

  37878 WEATHER SATELLITE LOOPS
Visible Weather Satellite
HAPPY VALLEY, TN 37878
Infrared Weather Satellite
HAPPY VALLEY, TN 37878
  37878 WEATHER RADAR LOOP
NEXRAD Weather Radar
HAPPY VALLEY, TN 37878
 MOS COMPUTER WEATHER FORECAST

KNOXVILLE, TN 3 hourly weather forecast
weather forecast created  7:00 PM CDT  6/ 8/2026
Tuesday
9 JUN 2026		 HAPPY VALLEY, TN 37878 weather forecast Day 1, 0 hours 2 AM 71° 71° Mostly Cloudy 16%
RAIN
.01–.1 in		 0% Thunder
( 10% severe)		   CALM 97% 70°
Low 69° HAPPY VALLEY, TN 37878 weather forecast Day 1, 3 hours 5 AM 70° 70° Mostly Cloudy   CALM 100% 70°
High 85° HAPPY VALLEY, TN 37878 weather forecast Day 1, 6 hours 8 AM 70° 70° Mostly Cloudy 46%
RAIN
.25–.5 in		 0% Thunder
( 30% severe)		   CALM 100% 70°

Mostly Cloudy

Rain Likely

 HAPPY VALLEY, TN 37878 weather forecast Day 1, 9 hours 11 AM 77° 79° Mostly Cloudy SW   9 79% 70°
HAPPY VALLEY, TN 37878 weather forecast Day 1, 12 hours 2 PM 81° 85° Mostly Cloudy 64%
RAIN
***		 0% Thunder
( 66% severe)		 WSW   12 72% 71°
HAPPY VALLEY, TN 37878 weather forecast Day 1, 15 hours 5 PM 83° 88° Mostly Cloudy SW   10 67% 71°
HAPPY VALLEY, TN 37878 weather forecast Day 1, 18 hours 8 PM 80° 83° Mostly Cloudy 24%
RAIN
.01–.1 in		 0% Thunder
( 19% severe)		 SW   8 74% 71°
HAPPY VALLEY, TN 37878 weather forecast Day 1, 21 hours 11 PM 74° 74° Mostly Cloudy SSW   8 87% 70°
Wednesday
10 JUN 2026		 HAPPY VALLEY, TN 37878 weather forecast Day 2, 0 hours 2 AM 72° 72° Mostly Cloudy 17%
RAIN
<.01 in		 0% Thunder
( 11% severe)		 WSW   7 90% 69°
Low 70° HAPPY VALLEY, TN 37878 weather forecast Day 2, 3 hours 5 AM 71° 71° Mostly Cloudy SW   8 93% 69°
High 88° HAPPY VALLEY, TN 37878 weather forecast Day 2, 6 hours 8 AM 72° 72° Mostly Cloudy 27%
RAIN
.25–.5 in		 0% Thunder
( 25% severe)		 SW   8 90% 69°

Mostly Cloudy

Chance of Rain

 HAPPY VALLEY, TN 37878 weather forecast Day 2, 9 hours 11 AM 79° 82° Mostly Cloudy SW   12 74% 70°
HAPPY VALLEY, TN 37878 weather forecast Day 2, 12 hours 2 PM 84° 89° Mostly Cloudy 24%
RAIN
.25–.5 in		 0% Thunder
( 48% severe)		 SW   10 65% 71°
HAPPY VALLEY, TN 37878 weather forecast Day 2, 15 hours 5 PM 87° 92° Partly Cloudy WSW   10 57% 70°
HAPPY VALLEY, TN 37878 weather forecast Day 2, 18 hours 8 PM 83° 88° Partly Cloudy 6%

 0% Thunder
( 14% severe)		 SW   8 70% 72°
HAPPY VALLEY, TN 37878 weather forecast Day 2, 21 hours 11 PM 76° 77° Partly Cloudy SSW   8 85% 71°

KNOXVILLE, TN extended weather forecast
Thursday
11 JUN 2026		 Friday
12 JUN 2026		 Saturday
13 JUN 2026		 Sunday
14 JUN 2026		 Monday
15 JUN 2026
Low 72° Low 72° Low 70° Low 66° Low 68°
High 92° High 92° High 89° High 88° High 83°
HAPPY VALLEY, TN 37878 weather forecast Day 3 HAPPY VALLEY, TN 37878 weather forecast Day 4 HAPPY VALLEY, TN 37878 weather forecast Day 5 HAPPY VALLEY, TN 37878 weather forecast Day 6 HAPPY VALLEY, TN 37878 weather forecast Day 7
Partly Cloudy
53% Rain		 Mostly Cloudy
55% Rain		 Mostly Cloudy
45% Rain		 Mostly Cloudy
46% Rain		 Overcast
70% Rain
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