Storm Surge Watch Flood Watch 2:00 AM

Saint Augustine, Florida

Last updated: 7:50 PM CDT  ·  Refresh
23°C
Feels like 25°
Rain
▲ 26°  /  ▼ 23°
Wind
7 mph E
Humidity
83%
Dew Point
21°
Pressure
29.94 inHg
Visibility
8 mi
UV Index
0.0
Cloud Cover
93%
Sunrise
7:22 AM
Sunset
7:02 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Saint Augustine is currently rain at 24°C. Precipitation is likely — peak probability 90% around 5 AM. Atmospheric instability is elevated (CAPE up to 1018 J/kg) — isolated convective development possible. Sunrise: 7:22AM · Sunset: 7:02PM.

Alerts

Storm Surge Watch
Expires
Flood Watch
Expires 2:00 AM
34 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
23°
58%
9 PM
24°
57%
10 PM
24°
53%
11 PM
24°
70%
12 AM
24°
60%
1 AM
25°
68%
2 AM
25°
66%
3 AM
25°
73%
4 AM
25°
73%
5 AM
25°
90%
6 AM
25°
90%
7 AM
26°
85%
8 AM
26°
90%
9 AM
26°
80%
10 AM
26°
82%
11 AM
26°
78%
12 PM
26°
74%
1 PM
26°
81%
2 PM
26°
79%
3 PM
26°
71%
4 PM
26°
71%
5 PM
26°
71%
6 PM
26°
71%
7 PM
26°
70%
7-Day Forecast
Tonight
26° 23°
Heavy Rain, 70% chance.
Fri
28° 23°
Rain, 90% chance.
Sat
31° 25°
Partly Cloudy with a 84% chance of rain.
Sun
29° 23°
Mostly Cloudy with a 47% chance of rain.
Mon
29° 21°
Partly Cloudy.
Tue
28° 21°
Clear.
Wed
28° 21°
Mostly Clear.
TimeTempConditionsPrecipWindHumidity
Now 23° Rain 58% 7 mph E 83%
9 PM 24° Rain 57% 9 mph E 80%
10 PM 24° Heavy Rain 53% 8 mph E 79%
11 PM 24° Heavy Rain 70% 7 mph E 80%
12 AM 24° Heavy Rain 60% 8 mph ENE 80%
1 AM 25° Rain 68% 8 mph E 81%
2 AM 25° Rain 66% 9 mph E 80%
3 AM 25° Rain 73% 10 mph E 80%
4 AM 25° Rain 73% 11 mph ENE 79%
5 AM 25° Rain 90% 10 mph ENE 80%
6 AM 25° Overcast 90% 11 mph ENE 81%
7 AM 26° Overcast 85% 12 mph ENE 81%
8 AM 26° Rain 90% 12 mph ENE 81%
9 AM 26° Rain 80% 12 mph E 83%
10 AM 26° Rain 82% 11 mph E 84%
11 AM 26° Rain 78% 10 mph E 85%
12 PM 26° Rain 74% 10 mph ENE 84%
1 PM 26° Overcast 81% 9 mph ENE 83%
2 PM 26° Overcast 79% 9 mph ENE 84%
3 PM 26° Rain 71% 9 mph ENE 85%
4 PM 26° Rain 71% 9 mph ENE 85%
5 PM 26° Rain 71% 10 mph ENE 86%
6 PM 26° Drizzle 71% 10 mph E 86%
7 PM 26° Rain 70% 10 mph E 86%
15-Day Forecast
Today
10/8
Heavy Rain
70%
23°
26°
Fri
10/9
Rain
90%
23°
28°
Sat
10/10
Partly Cloudy
84%
25°
31°
Sun
10/11
Mostly Cloudy
47%
23°
29°
Mon
10/12
Partly Cloudy
15%
21°
29°
Tue
10/13
Clear
3%
21°
28°
Wed
10/14
Mostly Clear
7%
21°
28°
Thu
10/15
Mostly Clear
30%
22°
28°
Fri
10/16
Rain
66%
23°
28°
Sat
10/17
Rain
54%
21°
27°
Sun
10/18
Rain
60%
20°
27°
Mon
10/19
Drizzle
60%
20°
27°
Tue
10/20
Drizzle
60%
21°
26°
Wed
10/21
Drizzle
60%
21°
25°
Thu
10/22
Drizzle
60%
21°
26°
34
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
12 AQI 2.3 µg/m³
O3
Ground-level ozone
Dominant
34 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 34 Good 34 12
Sat 39 Good 39 13
Sun 19 Good 19 13
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 Thu Oct 8, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE115 J/kg
MLCAPE23 J/kg
MUCAPE115 J/kg
SBCIN-56 J/kg
MLCIN-98 J/kg
Lifted Index-0.1
Kinematics
0–6 km Shear32 kt
0–1 km Shear14 kt
Eff. Shear3 kt
0–1 km SRH-43
0–3 km SRH-38
Eff. SRH-38
Storm Motion306° @ 10 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index31.4
Thermo & Levels
PWAT2.08 in
0–3 km LR5.0 °C/km
700–500 LR5.0 °C/km
Total Totals39.7
LCL981 hPa
LFC795 hPa
EL493 hPa
Freezing Lvl14,934 ft