Weather StoryAlmanac, microseasons, and the day's weather story.

Loudon, Tennessee Weather

Cicadas claim the scorching afternoon. Day 15 of summer. Read this microseason across nine climate regions →

Loudon weather forecast — hour by hour, 7-day outlook, NOAA radar

Loudon, TN
Sunday, July 5 at 4:20 PM
85
°
Overcast
Feels like
92°
Humidity
62%
Wind
6 mph
Sunrise
2:27 AM
Sunset
4:57 PM
Loudon, TN
Hour by hour · 24h
24-Hour ForecastLoudon, TN: 24-hour forecast. Temperatures range from 70 to 88 degrees Fahrenheit with a 36% chance of precipitation at 4 PM.
L 70°H 88°
Loudon, TN
7-day forecast
  1. Today
    Jul 5
    Light Drizzle
    38%
    0.02″
    88°73°
  2. Monday
    Jul 6
    Light Showers
    44%
    0.09″
    88°70°
  3. Tuesday
    Jul 7
    Thunderstorm
    49%
    87°70°-1°
  4. Wednesday
    Jul 8
    Light Drizzle
    24%
    94°70°+7°
  5. Thursday
    Jul 9
    Drizzle
    14%
    92°69°-2°
  6. Friday
    Jul 10
    Light Drizzle
    45%
    84°69°-8°
  7. Saturday
    Jul 11
    Thunderstorm
    59%
    0.07″
    89°70°+5°
Loudon, TN
Anemometer · 24h winds · from true
NESW
From · True
WNW
282° · veering 125°
Direction
WNW
282°
Sustained
6
mph
Gust
9
mph
Peak 24h
12
avg 3
Beaufort · 2 · LIGHT BRZ
0
CALM
<1
1
LIGHT AIR
1–3
2
LIGHT BRZ
4–7
3
GENTLE BRZ
8–12
4
MOD BRZ
13–18
5
FRESH BRZ
19–24
6
STRONG BRZ
25–31
7
NEAR GALE
32–38
24h · sust vs gust · mph
avg 3 · pk 12 @ 1:00p
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 212SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
Loudon, TN
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
987.7
-0.4 mb in 3h · steady · 29.17 inHg
Now
987.7
mb
3h
-0.4
mb
12h
+0.5
mb
24h
-0.4
mb
Regime · STORM
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 986989
9809859909951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY1030-21h-18h-15h-12h-9h-6h-3h-24hNOW988.8986.1987.6
−24h−18h−12h−6hnow
Deep low — expect rough seas, strong wind, and persistent rain.
Loudon, TN
Air quality
48
AQI
Good
+14 in 6hPeak ~74 @ 11 PM

AQI 48 (Good), driven by Ozone. AQI up 14 over the last 6 hours (gradual rise). Ozone at AQI 83 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.

OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.

PM 2.5Good
7.1μg/m³
PM 10Good
8μg/m³
NO₂Good
1μg/m³
OzoneDRIVERUnhealthy SG
127μg/m³
UV IndexHigh
5.5

What's driving it

Ozone × UV × Sky

Ozone at AQI 83 — peak already passed at 1 PM under partly cloudy skies. Levels should ease through evening.

Present
AQI 83
UV peak
5.0 at earlier today
Sky at peak
partly cloudy
Projected peak
AQI 83

PM × Wind × Precip

PM scrubbed by 2 hours of recent rain — PM2.5 down to 7.1 µg/m³, PM10 to 7.6 µg/m³.

PM2.5/PM10
0.93
Wind
light
Recent rain
2h in last 6h
Pattern
washed out
Loudon, TN
Sky cover · visibility · 24h
Cloud cover
85%
MOSTLY CLOUDY
100%0%−24h−18h−12h−6hnow

Visibility
52.4mi
UNLIMITED
81 mi0 mi−24h−18h−12h−6hnow
Earth · GOES-19 ABI
Full Disk · Visible · GeoColor
GOES-19 full disk Visible · GeoColor
True-color daytime, blue/IR sandwich at night
20:20 UTC · Loudon, TN · NOAA NESDIS / STAR · up to 10848 px
Continental US · GOES-19 ABI
CONUS Sector · Visible · GeoColor
GOES-19 CONUS Visible · GeoColor
Daytime true-color, blue-light/IR sandwich at night
20:20 UTC · Loudon, TN · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Loudon, TN
Satellite · infrared · animated
Loudon, TN
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Loudon, TN
Almanac · Sunday, July 5
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:58 AM
Sunrise
2:27 AM
Daylight
14h 30m
Sunset
4:57 PM
Civil dusk
9:28 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Loudon, TN
The moon
Waning Gibbous
70% illuminated
Moonrise
11:52 PM
Moonset
11:50 AM
In sign
♓︎ Pisces
Loudon, TN
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

plant
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Loudon at a glance

  • Today vs. normal: 9°F above the seasonal normal for this latitude
  • Last frost: March 21 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 37774

16-Day Forecast — Loudon

  1. Sun88°73°38%
  2. Mon88°70°44%
  3. Tue87°70°49%
  4. Wed94°70°24%
  5. Thu92°69°14%
  6. Fri84°69°45%
  7. Sat89°70°59%
  8. Sun90°68°42%
  9. Mon95°70°18%
  10. Tue82°61°11%
  11. Wed85°58°10%
  12. Thu91°63°31%
  13. Fri93°67°39%
  14. Sat94°67°48%
  15. Sun95°68°37%
  16. Mon90°66°35%

Forecast data from Open-Meteo (CC BY 4.0).

Right now in the garden

Peak growing season

As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.

SPC Convective Outlook

Storm Prediction Center — Loudon

SPC has placed Loudon in the Marginal Risk category for severe thunderstorms today.

  • TODAYMRGLMarginal Risk
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Isolated severe storms possible. Limited threat for hail or damaging wind.

Source: NOAA / NWS Storm Prediction Center categorical convective outlook. Outlooks are re-issued multiple times per day; this page reflects the most recent SPC polygons covering the city’s coordinates.

ZIP codes in Loudon

  • 37774

Climate normals from the Open-Meteo Climate API. Köppen approximation from NOAA NCEI U.S. Climate Regions. See methodology for data sources, editorial rules, and corrections. Maintainer: Brian Tighe.