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

Mason, Tennessee Weather

Cicadas claim the scorching afternoon. Day 14 of summer. Read this microseason across nine climate regions →

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

Mason, TN
Saturday, July 4 at 4:28 PM
86
°
Overcast
Feels like
92°
Humidity
70%
Wind
12 mph
Sunrise
12:48 AM
Sunset
3:16 PM
Mason, TN
Hour by hour · 24h
24-Hour ForecastMason, TN: 24-hour forecast. Temperatures range from 74 to 89 degrees Fahrenheit.
L 74°H 89°
Mason, TN
7-day forecast
  1. Today
    Jul 4
    Overcast
    18%
    93°72°
  2. Sunday
    Jul 5
    Overcast
    25%
    89°74°-4°
  3. Monday
    Jul 6
    Thunderstorm
    21%
    88°70°-1°
  4. Tuesday
    Jul 7
    Overcast
    86°68°-2°
  5. Wednesday
    Jul 8
    Overcast
    89°67°+3°
  6. Thursday
    Jul 9
    Light Drizzle
    15%
    94°71°+5°
  7. Friday
    Jul 10
    Clear
    37%
    96°77°+2°
Mason, TN
Anemometer · 24h winds · from true
NESW
From · True
W
269° · veering 124°
Direction
W
269°
Sustained
12
mph
Gust
16
mph
Peak 24h
21
avg 4
Beaufort · 3 · GENTLE 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 4 · pk 21 @ 8:00p
010203040MPHB1B2B3B4B5B6B7B8-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 3725SUSTGUST
−24h−18h−12h−6hnow
Light breeze veering 124° from the w.
Mason, TN
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1003.2
-2.0 mb in 3h · falling · 29.62 inHg
Now
1003.2
mb
3h
-2.0
mb
12h
-2.4
mb
24h
-2.0
mb
Regime · RAIN
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10031006
9951000STORM|RAIN10051010RAIN|CHG1015CHG|FAIR-21h-18h-15h-12h-9h-6h-3h-24hNOW1006.41003.21003.2
−24h−18h−12h−6hnow
Pressure giving way — clouds thicken and rain edges closer.
Mason, TN
Air quality
55
AQI
Moderate
+26 in 6hPeak ~71 @ 11 PM

AQI 55 (Moderate), driven by Ozone. AQI up 26 in the last 6 hours — air quality is degrading. Ozone at AQI 68 — peak already passed at 1 PM under clear 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
11.2μg/m³
PM 10Good
14μg/m³
NO₂Good
2μg/m³
OzoneDRIVERUnhealthy SG
118μg/m³
UV IndexModerate
3.0

What's driving it

Ozone × UV × Sky

Ozone at AQI 68 — peak already passed at 1 PM under clear skies. Levels should ease through evening.

Present
AQI 68
UV peak
2.7 at earlier today
Sky at peak
clear
Projected peak
AQI 68

PM × Wind × Precip

PM2.5 at 11.2 µg/m³, PM10 at 13.8 µg/m³ — typical background levels with no transport signature.

PM2.5/PM10
0.81
Wind
breezy
Recent rain
0h in last 6h
Pattern
background
Mason, TN
Sky cover · visibility · 24h
Cloud cover
89%
OVERCAST
100%0%−24h−18h−12h−6hnow

Visibility
49.5mi
UNLIMITED
82 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
21:28 UTC · Mason, 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
21:28 UTC · Mason, TN · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
Mason, TN
Satellite · infrared · animated
Mason, TN
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
Mason, TN
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
5:19 AM
Sunrise
12:48 AM
Daylight
14h 28m
Sunset
3:16 PM
Civil dusk
8:47 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
Mason, TN
The moon
Waning Gibbous
78% illuminated
Moonrise
10:47 PM
Moonset
10:09 AM
In sign
♓︎ Pisces
Mason, TN
Microseason
Jul 1–5

Cicadas claim the scorching afternoon

bird
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

Mason at a glance

  • Today vs. normal: 10°F above the seasonal normal for this latitude
  • Last frost: March 19 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

ZIP code: 38049

16-Day Forecast — Mason

  1. Sat93°72°18%
  2. Sun89°74°25%
  3. Mon88°70°21%
  4. Tue86°68°8%
  5. Wed89°67°7%
  6. Thu94°71°15%
  7. Fri96°77°37%
  8. Sat84°74°37%
  9. Sun79°65°24%
  10. Mon79°61°10%
  11. Tue82°62°10%
  12. Wed85°64°21%
  13. Thu84°69°29%
  14. Fri89°70°45%
  15. Sat86°71°27%
  16. Sun75°69°26%

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

Right now in the garden

Peak growing season

As of July 4, 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 — Mason

SPC has placed Mason 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 Mason

  • 38049

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.