Saint Augustine Beach, Florida

Last updated: 2:21 AM CDT  ·  Refresh
21°C
Feels like 17°
Clear
▲ 24°  /  ▼ 21°
Wind
13 mph NE
Humidity
55%
Dew Point
12°
Pressure
30.04 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
3%
Sunrise
7:32 AM
Sunset
6:46 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Saint Augustine Beach is currently clear at 21°C. Precipitation is likely — peak probability 54% around 3 AM. Sunrise: 7:32AM · Sunset: 6:46PM.

Alerts

No active alerts for this location.
46 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
21°
3%
4 AM
21°
3%
5 AM
21°
3%
6 AM
19°
3%
7 AM
19°
3%
8 AM
19°
3%
9 AM
20°
3%
10 AM
22°
3%
11 AM
23°
4%
12 PM
23°
5%
1 PM
23°
5%
2 PM
23°
5%
3 PM
23°
5%
4 PM
23°
5%
5 PM
23°
5%
6 PM
22°
5%
7 PM
21°
9%
8 PM
21°
14%
9 PM
21°
24%
10 PM
21°
25%
11 PM
21°
35%
12 AM
21°
38%
1 AM
21°
39%
2 AM
21°
42%
7-Day Forecast
Today
24° 21°
Partly Cloudy with a 24% chance of rain.
Sat
24° 21°
Overcast with a 90% chance of rain.
Sun
26° 22°
Mostly Cloudy with a 83% chance of rain.
Mon
24° 22°
Rain, 68% chance.
Tue
24° 22°
Rain, 64% chance.
Wed
24° 22°
Rain, 29% chance.
Thu
26° 22°
Rain, 28% chance.
TimeTempConditionsPrecipWindHumidity
Now 21° Clear 3% 13 mph NE 55%
4 AM 21° Clear 3% 12 mph NNE 56%
5 AM 21° Clear 3% 12 mph NNE 56%
6 AM 19° Clear 3% 12 mph NNE 58%
7 AM 19° Mostly Clear 3% 12 mph NNE 59%
8 AM 19° Mostly Clear 3% 13 mph NNE 59%
9 AM 20° Mostly Clear 3% 13 mph NNE 58%
10 AM 22° Mostly Clear 3% 14 mph NNE 56%
11 AM 23° Mostly Clear 4% 15 mph NNE 55%
12 PM 23° Mostly Clear 5% 15 mph NNE 54%
1 PM 23° Partly Cloudy 5% 15 mph NNE 54%
2 PM 23° Partly Cloudy 5% 16 mph NNE 54%
3 PM 23° Partly Cloudy 5% 16 mph NNE 57%
4 PM 23° Partly Cloudy 5% 17 mph NNE 59%
5 PM 23° Partly Cloudy 5% 18 mph NNE 61%
6 PM 22° Partly Cloudy 5% 17 mph NNE 61%
7 PM 21° Partly Cloudy 9% 17 mph NNE 62%
8 PM 21° Partly Cloudy 14% 17 mph NNE 63%
9 PM 21° Partly Cloudy 24% 17 mph NNE 64%
10 PM 21° Partly Cloudy 25% 17 mph NNE 65%
11 PM 21° Partly Cloudy 35% 16 mph NNE 66%
12 AM 21° Partly Cloudy 38% 16 mph NNE 67%
1 AM 21° Partly Cloudy 39% 16 mph NNE 68%
2 AM 21° Partly Cloudy 42% 16 mph NNE 69%
15-Day Forecast
Today
10/23
Partly Cloudy
24%
21°
24°
Sat
10/24
Overcast
90%
21°
24°
Sun
10/25
Mostly Cloudy
83%
22°
26°
Mon
10/26
Rain
68%
22°
24°
Tue
10/27
Rain
64%
22°
24°
Wed
10/28
Rain
29%
22°
24°
Thu
10/29
Rain
28%
22°
26°
Fri
10/30
Rain
69%
22°
26°
Sat
10/31
Rain
68%
22°
26°
Sun
11/1
Drizzle
60%
22°
27°
Mon
11/2
Drizzle
60%
22°
27°
Tue
11/3
Drizzle
60%
21°
26°
Wed
11/4
Drizzle
60%
20°
25°
Thu
11/5
Drizzle
60%
19°
23°
Fri
11/6
Drizzle
60%
18°
23°
46
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

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

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
36 AQI 6.6 µg/m³
O3
Ground-level ozone
Dominant
46 AQI 51 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 46 Good 46 36
Sat 41 Good 41 21
Sun 37 Good 37 17
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 Fri Oct 23, 06:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE3 J/kg
MUCAPE0 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index3.1
Kinematics
0–6 km Shear20 kt
0–1 km Shear6 kt
Eff. Shear—
0–1 km SRH-24
0–3 km SRH31
Eff. SRH—
Storm Motion342° @ 22 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-14.2
Thermo & Levels
PWAT0.57 in
0–3 km LR5.3 °C/km
700–500 LR7.2 °C/km
Total Totals31.0
LCL896 hPa
LFC1017 hPa
EL1017 hPa
Freezing Lvl12,375 ft