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St. James City, Florida Weather

Midyear heat — the wet season grip. Day 14 of summer. Read this microseason across nine climate regions →

St. James City weather forecast — hour by hour, 7-day outlook, NOAA radar

St. James City, FL
Saturday, July 4 at 1:07 PM
91
°
Mostly Clear
Feels like
101°
Humidity
58%
Wind
7 mph
Sunrise
2:40 AM
Sunset
4:25 PM
St. James City, FL
Hour by hour · 24h
24-Hour ForecastSt. James City, FL: 24-hour forecast. Temperatures range from 76 to 91 degrees Fahrenheit with a 39% chance of precipitation at 9 AM.
L 76°H 91°
St. James City, FL
7-day forecast
  1. Today
    Jul 4
    Overcast
    28%
    91°79°
  2. Sunday
    Jul 5
    Heavy Showers
    39%
    1.7″
    85°76°-6°
  3. Monday
    Jul 6
    Thunderstorm
    42%
    91°78°+6°
  4. Tuesday
    Jul 7
    Light Drizzle
    16%
    91°78°
  5. Wednesday
    Jul 8
    Heavy Drizzle
    16%
    92°78°+1°
  6. Thursday
    Jul 9
    Drizzle
    18%
    93°78°+1°
  7. Friday
    Jul 10
    Light Drizzle
    16%
    93°77°
St. James City, FL
Anemometer · 24h winds · from true
NESW
From · True
WSW
245° · backing 78°
Direction
WSW
245°
Sustained
7
mph
Gust
8
mph
Peak 24h
13
avg 5
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 5 · pk 13 @ 12:00a
01020MPHB1B2B3B4B5-21h-18h-15h-12h-9h-6h-3h-24hNOWpk 2010SUSTGUST
−24h−18h−12h−6hnow
A whisper of wind — leaves barely shift on the trees.
St. James City, FL
Barometer · 24h pressure · mb
STORMRAINCHANGEFAIRDRY9901000101010201030
Pressure · mb
1017.3
-0.5 mb in 3h · steady · 30.04 inHg
Now
1017.3
mb
3h
-0.5
mb
12h
-0.5
mb
24h
-0.7
mb
Regime · FAIR
STORM
RAIN
CHANGE
FAIR
DRY
24h · Pressure · mb
range 10161019
1010RAIN|CHG1015CHG|FAIR10201025FAIR|DRY-21h-18h-15h-12h-9h-6h-3h-24hNOW1018.61015.91017.3
−24h−18h−12h−6hnow
Fair, steady air — a quiet anticyclone holds the sky.
St. James City, FL
Air quality
27
AQI
Good
0 in 6h

AQI 27 (Good), driven by Ozone. AQI flat over the last 6 hours (within ±3 points). Ozone at AQI 30 now. With UV 6.5 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 18 around 1 PM.

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

PM 2.5Good
4.2μg/m³
PM 10Good
7μg/m³
NO₂Good
0μg/m³
OzoneDRIVERModerate
63μg/m³
UV IndexHigh
6.5

What's driving it

Ozone × UV × Sky

Ozone at AQI 30 now. With UV 6.5 peaking around 1 PM under partly cloudy skies, surface ozone likely climbs to AQI 18 around 1 PM.

Present
AQI 30
UV peak
6.5 at 1 PM
Sky at peak
partly cloudy
Projected peak
AQI 18
St. James City, FL
Sky cover · visibility · 24h
Cloud cover
22%
CLEAR
100%0%−24h−18h−12h−6hnow

Visibility
61.4mi
UNLIMITED
62 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
17:07 UTC · St. James City, FL · 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
17:07 UTC · St. James City, FL · NOAA NESDIS / STAR · 5-min cadence · up to 10000 px
St. James City, FL
Satellite · infrared · animated
St. James City, FL
Loading IR frames…
IR · cloud-top temp© RainViewer · Carto
St. James City, FL
Almanac · Saturday, July 4
If the first of July be rainy weather, 'twill rain more or less for four weeks together.
Civil dawn
6:14 AM
Sunrise
2:40 AM
Daylight
13h 45m
Sunset
4:25 PM
Civil dusk
8:52 PM
Planting note
Harvest early potatoes. Begin drying onions on the surface.
St. James City, FL
The moon
Waning Gibbous
80% illuminated
Moonrise
11:05 PM
Moonset
10:46 AM
In sign
♓︎ Pisces
St. James City, FL
Microseason
Jul 1–5

Midyear heat — the wet season grip

fish
Jan 151% of the yearDec 31

Read this microseason across nine climate regions →

St. James City at a glance

  • Today vs. normal: 6°F above the seasonal normal for this latitude
  • Last frost: January 25 (climatological average for this latitude)
  • Microseason: Jul 1–5
  • Planting window: Harvest early potatoes. Begin drying onions on the surface.

16-Day Forecast — St. James City

  1. Sat91°79°28%
  2. Sun85°76°39%
  3. Mon91°78°42%
  4. Tue91°78°16%
  5. Wed92°78°16%
  6. Thu93°78°18%
  7. Fri93°77°16%
  8. Sat92°79°22%
  9. Sun93°79°12%
  10. Mon93°81°15%
  11. Tue92°79°24%
  12. Wed97°77°40%
  13. Thu92°76°44%
  14. Fri94°78°45%
  15. Sat95°76°68%
  16. Sun94°80°61%

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 — St. James City

SPC includes St. James City in the general thunderstorm area today — no severe risk, but storms are possible.

  • TODAYTSTMGeneral Thunderstorms
  • TOMORROWTSTMGeneral Thunderstorms
  • DAY 3TSTMGeneral Thunderstorms

Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.

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 St. James City

  • 33956

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.