Heat Advisory — Suwannee, FL, Baker, FL, Inland Nassau, FL, Union, FL, Bradford, FL, Gilchrist, FL, Inland Flagler, FL, Eastern Hamilton, FL, Coastal Nassau, FL, Coastal Duval, FL, Eastern Clay, FL, Eastern Alachua, FL, Eastern Putnam, FL, Coastal Flagler, FL, Eastern Marion, FL, Western Hamilton, FL, Trout River, FL, Western Clay, FL, Northeast Coastal St. Johns, FL, Western Alachua, FL, Western Putnam, FL, Central Marion, FL, Northern Columbia, FL, South Central Duval, FL, Southeast Coastal St. Johns, FL, Western Marion, FL, Southeastern Columbia, FL, Western Duval, FL, Northern Inland St. Johns, FL, Southwestern Columbia, FL, Southern Inland St. Johns, FL, Western St. Johns, FL, Inland Glynn, GA, Coastal Glynn, GA, Inland Camden, GA, Coastal Camden, GA 6:00 PM

Union County, Florida, United States

Last updated: 5:10 AM CDT  ·  Refresh
24°C
Feels like 29°
Partly Cloudy
▲ 37°  /  ▼ 23°
Wind
2 mph SW
Humidity
91%
Dew Point
23°
Pressure
30.00 inHg
Visibility
8 mi
UV Index
0.0
Cloud Cover
36%
Sunrise
6:54 AM
Sunset
8:14 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently partly cloudy at 24°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2089 J/kg) — isolated convective development possible. Sunrise: 6:54AM · Sunset: 8:14PM.

Alerts

Heat Advisory
Suwannee, FL, Baker, FL, Inland Nassau, FL, Union, FL, Bradford, FL, Gilchrist, FL, Inland Flagler, FL, Eastern Hamilton, FL, Coastal Nassau, FL, Coastal Duval, FL, Eastern Clay, FL, Eastern Alachua, FL, Eastern Putnam, FL, Coastal Flagler, FL, Eastern Marion, FL, Western Hamilton, FL, Trout River, FL, Western Clay, FL, Northeast Coastal St. Johns, FL, Western Alachua, FL, Western Putnam, FL, Central Marion, FL, Northern Columbia, FL, South Central Duval, FL, Southeast Coastal St. Johns, FL, Western Marion, FL, Southeastern Columbia, FL, Western Duval, FL, Northern Inland St. Johns, FL, Southwestern Columbia, FL, Southern Inland St. Johns, FL, Western St. Johns, FL, Inland Glynn, GA, Coastal Glynn, GA, Inland Camden, GA, Coastal Camden, GA
Expires 6:00 PM
32 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
8%
7 AM
23°
23%
8 AM
24°
25%
9 AM
26°
27%
10 AM
29°
23%
11 AM
31°
21%
12 PM
32°
21%
1 PM
33°
15%
2 PM
36°
4%
3 PM
36°
9%
4 PM
36°
21%
5 PM
35°
21%
6 PM
33°
21%
7 PM
31°
25%
8 PM
30°
25%
9 PM
29°
29%
10 PM
28°
29%
11 PM
28°
26%
12 AM
27°
22%
1 AM
26°
17%
2 AM
25°
8%
3 AM
24°
9%
4 AM
24°
9%
5 AM
24°
9%
7-Day Forecast
Today
37° 23°
Mostly Clear with a 29% chance of rain.
Wed
37° 23°
Partly Cloudy with a 54% chance of rain.
Thu
36° 23°
Partly Cloudy with a 57% chance of rain.
Fri
36° 23°
Mostly Clear with a 81% chance of rain.
Sat
36° 23°
Rain, 70% chance.
Sun
36° 23°
Thunderstorm, 67% chance.
Mon
36° 22°
Drizzle, 50% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Partly Cloudy 8% 2 mph SW 91%
7 AM 23° Partly Cloudy 23% 3 mph SW 88%
8 AM 24° Partly Cloudy 25% 2 mph SW 87%
9 AM 26° Mostly Clear 27% 4 mph WSW 79%
10 AM 29° Mostly Clear 23% 4 mph W 71%
11 AM 31° Mostly Clear 21% 5 mph W 64%
12 PM 32° Mostly Clear 21% 6 mph W 57%
1 PM 33° Mostly Clear 15% 7 mph W 50%
2 PM 36° Mostly Clear 4% 7 mph W 44%
3 PM 36° Mostly Clear 9% 7 mph W 42%
4 PM 36° Mostly Clear 21% 7 mph W 41%
5 PM 35° Partly Cloudy 21% 7 mph W 41%
6 PM 33° Partly Cloudy 21% 7 mph WSW 47%
7 PM 31° Partly Cloudy 25% 6 mph WSW 54%
8 PM 30° Mostly Clear 25% 6 mph WSW 62%
9 PM 29° Partly Cloudy 29% 5 mph WSW 67%
10 PM 28° Partly Cloudy 29% 5 mph WSW 72%
11 PM 28° Partly Cloudy 26% 5 mph WSW 76%
12 AM 27° Partly Cloudy 22% 5 mph WSW 79%
1 AM 26° Partly Cloudy 17% 5 mph WSW 83%
2 AM 25° Partly Cloudy 8% 5 mph WSW 86%
3 AM 24° Partly Cloudy 9% 5 mph WSW 87%
4 AM 24° Partly Cloudy 9% 4 mph WSW 87%
5 AM 24° Partly Cloudy 9% 4 mph WSW 88%
15-Day Forecast
Today
8/11
Mostly Clear
29%
23°
37°
Wed
8/12
Partly Cloudy
54%
23°
37°
Thu
8/13
Partly Cloudy
57%
23°
36°
Fri
8/14
Mostly Clear
81%
23°
36°
Sat
8/15
Rain
70%
23°
36°
Sun
8/16
Thunderstorm
67%
23°
36°
Mon
8/17
Drizzle
50%
22°
36°
Tue
8/18
Rain
83%
24°
37°
Wed
8/19
Rain
72%
23°
36°
Thu
8/20
Drizzle
67%
22°
34°
Fri
8/21
Drizzle
67%
24°
35°
Sat
8/22
Drizzle
60%
24°
34°
Sun
8/23
Drizzle
60%
24°
34°
Mon
8/24
Rain
90%
24°
34°
Tue
8/25
Drizzle
60%
24°
34°
32
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
32 AQI 5.8 µg/m³
O3
Ground-level ozone
24 AQI 27 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 32 Good 24 32
Wed 36 Good 27 36
Thu 30 Good 23 30
About the Air Quality Index
0–50 Good
51–100 Moderate
101–150 Unhealthy for Sensitive Groups
151–200 Unhealthy
201–300 Very Unhealthy
301–500 Hazardous

The U.S. AQI runs 0–500. The overall value equals the highest individual pollutant sub-index, and the dominant pollutant is the one driving it. PM2.5 (fine particles) is reported in µg/m³ and ozone (O3) in ppb. Forecast source: NWS NAQFC.

1000850700500400300250200150100 -40-30-20-10010203040 0.41247101624 LCLLFCEL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Tue Aug 11, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE827 J/kg
MLCAPE276 J/kg
MUCAPE1527 J/kg
SBCIN-252 J/kg
MLCIN0 J/kg
Lifted Index-3.2
Kinematics
0–6 km Shear12 kt
0–1 km Shear10 kt
Eff. Shear7 kt
0–1 km SRH34
0–3 km SRH19
Eff. SRH-6
Storm Motion14° @ 12 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index26.6
Thermo & Levels
PWAT1.59 in
0–3 km LR4.3 °C/km
700–500 LR6.3 °C/km
Total Totals41.8
LCL998 hPa
LFC684 hPa
EL193 hPa
Freezing Lvl16,010 ft