Heat Advisory — Sumter, FL, Pinellas, FL, Polk, FL, Hardee, FL, Highlands, FL, DeSoto, FL, Coastal Hillsborough, FL, Coastal Manatee, FL, Coastal Sarasota, FL, Coastal Charlotte, FL, Coastal Lee, FL, Inland Levy, FL, Inland Citrus, FL, Inland Hernando, FL, Inland Pasco, FL, Inland Hillsborough, FL, Inland Manatee, FL, Inland Sarasota, FL, Inland Charlotte, FL, Inland Lee, FL 6:00 PM

Polk County, Florida, United States

Last updated: 6:13 AM CDT  ·  Refresh
26°C
Feels like 30°
Mostly Clear
▲ 36°  /  ▼ 24°
Wind
3 mph SE
Humidity
87%
Dew Point
24°
Pressure
29.98 inHg
Visibility
10 mi
UV Index
1.6
Cloud Cover
14%
Sunrise
6:55 AM
Sunset
8:08 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Polk County is currently mostly clear at 26°C. Precipitation is likely — peak probability 54% around 4 PM. Atmospheric instability is elevated (CAPE up to 2700 J/kg) — isolated convective development possible. Sunrise: 6:55AM · Sunset: 8:08PM.

Alerts

Heat Advisory
Sumter, FL, Pinellas, FL, Polk, FL, Hardee, FL, Highlands, FL, DeSoto, FL, Coastal Hillsborough, FL, Coastal Manatee, FL, Coastal Sarasota, FL, Coastal Charlotte, FL, Coastal Lee, FL, Inland Levy, FL, Inland Citrus, FL, Inland Hernando, FL, Inland Pasco, FL, Inland Hillsborough, FL, Inland Manatee, FL, Inland Sarasota, FL, Inland Charlotte, FL, Inland Lee, FL
Expires 6:00 PM
30 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
15%
8 AM
25°
31%
9 AM
27°
31%
10 AM
30°
24%
11 AM
31°
46%
12 PM
32°
45%
1 PM
33°
42%
2 PM
34°
44%
3 PM
34°
44%
4 PM
33°
54%
5 PM
32°
50%
6 PM
32°
50%
7 PM
31°
36%
8 PM
30°
17%
9 PM
29°
14%
10 PM
27°
14%
11 PM
26°
14%
12 AM
26°
9%
1 AM
26°
4%
2 AM
26°
3%
3 AM
26°
3%
4 AM
25°
3%
5 AM
25°
3%
6 AM
25°
3%
7-Day Forecast
Today
36° 24°
Partly Cloudy with a 54% chance of rain.
Wed
37° 25°
Partly Cloudy.
Thu
35° 24°
Partly Cloudy with a 52% chance of rain.
Fri
34° 24°
Mostly Clear with a 58% chance of rain.
Sat
34° 24°
Partly Cloudy with a 22% chance of rain.
Sun
35° 25°
Drizzle, 59% chance.
Mon
35° 26°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 26° Mostly Clear 15% 3 mph SE 87%
8 AM 25° Mostly Clear 31% 2 mph SE 84%
9 AM 27° Mostly Clear 31% 3 mph SSE 77%
10 AM 30° Mostly Clear 24% 3 mph SSE 72%
11 AM 31° Clear 46% 3 mph SSE 65%
12 PM 32° Mostly Clear 45% 2 mph S 61%
1 PM 33° Mostly Clear 42% 2 mph S 57%
2 PM 34° Partly Cloudy 44% 3 mph SSW 54%
3 PM 34° Partly Cloudy 44% 3 mph WNW 59%
4 PM 33° Mostly Cloudy 54% 4 mph NW 63%
5 PM 32° Overcast 50% 5 mph NW 67%
6 PM 32° Overcast 50% 4 mph WNW 68%
7 PM 31° Overcast 36% 4 mph WNW 70%
8 PM 30° Overcast 17% 4 mph WSW 72%
9 PM 29° Overcast 14% 3 mph SSW 74%
10 PM 27° Overcast 14% 4 mph S 76%
11 PM 26° Overcast 14% 4 mph SSW 77%
12 AM 26° Mostly Cloudy 9% 4 mph SSW 78%
1 AM 26° Mostly Cloudy 4% 3 mph SW 80%
2 AM 26° Mostly Cloudy 3% 3 mph WSW 81%
3 AM 26° Mostly Cloudy 3% 3 mph WSW 81%
4 AM 25° Mostly Cloudy 3% 3 mph W 81%
5 AM 25° Mostly Cloudy 3% 4 mph W 82%
6 AM 25° Mostly Cloudy 3% 4 mph W 82%
15-Day Forecast
Today
8/11
Partly Cloudy
54%
24°
36°
Wed
8/12
Partly Cloudy
9%
25°
37°
Thu
8/13
Partly Cloudy
52%
24°
35°
Fri
8/14
Mostly Clear
58%
24°
34°
Sat
8/15
Partly Cloudy
22%
24°
34°
Sun
8/16
Drizzle
59%
25°
35°
Mon
8/17
Rain
63%
26°
35°
Tue
8/18
Thunderstorm
66%
25°
36°
Wed
8/19
Rain
90%
23°
35°
Thu
8/20
Rain
68%
23°
33°
Fri
8/21
Rain
72%
23°
34°
Sat
8/22
Drizzle
60%
26°
34°
Sun
8/23
Drizzle
60%
26°
34°
Mon
8/24
Drizzle
60%
26°
34°
Tue
8/25
Drizzle
60%
26°
34°
30
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
30 AQI 5.4 µg/m³
O3
Ground-level ozone
23 AQI 25 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 30 Good 23 30
Wed 31 Good 31 27
Thu 32 Good 25 32
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, 09:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1381 J/kg
MLCAPE353 J/kg
MUCAPE1381 J/kg
SBCIN-143 J/kg
MLCIN0 J/kg
Lifted Index-4.0
Kinematics
0–6 km Shear5 kt
0–1 km Shear3 kt
Eff. Shear3 kt
0–1 km SRH-5
0–3 km SRH6
Eff. SRH6
Storm Motion131° @ 16 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index24.8
Thermo & Levels
PWAT1.61 in
0–3 km LR4.9 °C/km
700–500 LR6.1 °C/km
Total Totals46.0
LCL983 hPa
LFC798 hPa
EL174 hPa
Freezing Lvl16,250 ft