Heat Advisory — Grayson, TX, Fannin, TX, Lamar, TX, Denton, TX, Collin, TX, Hunt, TX, Delta, TX, Hopkins, TX, Tarrant, TX, Dallas, TX, Rockwall, TX, Kaufman, TX, Van Zandt, TX, Rains, TX, Johnson, TX, Ellis, TX, Henderson, TX, Hill, TX, Navarro, TX, Freestone, TX, Anderson, TX, Bell, TX, McLennan, TX, Falls, TX, Limestone, TX, Leon, TX, Milam, TX, Robertson, TX 8:00 PM

Freestone County, Texas, United States

Last updated: 3:46 PM CDT  ·  Refresh
36°C
Feels like 37°
Clear
▲ 37°  /  ▼ 22°
Wind
9 mph SSE
Humidity
36%
Dew Point
21°
Pressure
29.48 inHg
Visibility
10 mi
UV Index
7.9
Cloud Cover
3%
Sunrise
7:06 AM
Sunset
7:32 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Freestone County is currently clear at 35°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2173 J/kg) — isolated convective development possible. Sunrise: 7:06AM · Sunset: 7:32PM.

Alerts

Heat Advisory
Grayson, TX, Fannin, TX, Lamar, TX, Denton, TX, Collin, TX, Hunt, TX, Delta, TX, Hopkins, TX, Tarrant, TX, Dallas, TX, Rockwall, TX, Kaufman, TX, Van Zandt, TX, Rains, TX, Johnson, TX, Ellis, TX, Henderson, TX, Hill, TX, Navarro, TX, Freestone, TX, Anderson, TX, Bell, TX, McLennan, TX, Falls, TX, Limestone, TX, Leon, TX, Milam, TX, Robertson, TX
Expires 8:00 PM
34 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
36°
3%
4 PM
36°
3%
5 PM
36°
3%
6 PM
34°
3%
7 PM
32°
3%
8 PM
30°
3%
9 PM
28°
3%
10 PM
28°
3%
11 PM
27°
3%
12 AM
26°
3%
1 AM
26°
3%
2 AM
25°
3%
3 AM
24°
3%
4 AM
24°
3%
5 AM
22°
3%
6 AM
22°
3%
7 AM
22°
3%
8 AM
24°
3%
9 AM
25°
3%
10 AM
28°
3%
11 AM
29°
3%
12 PM
30°
3%
1 PM
32°
3%
2 PM
32°
3%
7-Day Forecast
Today
37° 22°
Clear.
Mon
37° 22°
Mostly Clear.
Tue
37° 21°
Mostly Clear.
Wed
35° 21°
Clear.
Thu
36° 22°
Clear.
Fri
36° 22°
Clear.
Sat
37° 22°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 36° Clear 3% 9 mph SSE 36%
4 PM 36° Clear 3% 10 mph SSE 35%
5 PM 36° Clear 3% 11 mph SSE 38%
6 PM 34° Clear 3% 10 mph SE 42%
7 PM 32° Clear 3% 9 mph SE 48%
8 PM 30° Clear 3% 9 mph SSE 55%
9 PM 28° Clear 3% 9 mph SSE 60%
10 PM 28° Clear 3% 9 mph S 63%
11 PM 27° Mostly Clear 3% 8 mph S 66%
12 AM 26° Mostly Clear 3% 8 mph S 70%
1 AM 26° Mostly Clear 3% 7 mph S 75%
2 AM 25° Mostly Clear 3% 6 mph S 79%
3 AM 24° Clear 3% 6 mph S 83%
4 AM 24° Partly Cloudy 3% 5 mph S 86%
5 AM 22° Partly Cloudy 3% 5 mph S 88%
6 AM 22° Partly Cloudy 3% 4 mph S 90%
7 AM 22° Partly Cloudy 3% 5 mph S 87%
8 AM 24° Partly Cloudy 3% 6 mph S 81%
9 AM 25° Mostly Clear 3% 7 mph SSW 76%
10 AM 28° Mostly Clear 3% 7 mph S 70%
11 AM 29° Mostly Clear 3% 7 mph S 64%
12 PM 30° Mostly Clear 3% 8 mph S 58%
1 PM 32° Mostly Clear 3% 8 mph S 55%
2 PM 32° Mostly Clear 3% 9 mph S 54%
15-Day Forecast
Today
9/13
Clear
3%
22°
37°
Mon
9/14
Mostly Clear
3%
22°
37°
Tue
9/15
Mostly Clear
3%
21°
37°
Wed
9/16
Clear
3%
21°
35°
Thu
9/17
Clear
9%
22°
36°
Fri
9/18
Clear
9%
22°
36°
Sat
9/19
Clear
19%
22°
37°
Sun
9/20
Clear
60%
22°
35°
Mon
9/21
Drizzle
60%
21°
34°
Tue
9/22
Drizzle
60%
17°
33°
Wed
9/23
Drizzle
60%
19°
32°
Thu
9/24
Drizzle
60%
21°
32°
Fri
9/25
Clear
25%
20°
32°
Sat
9/26
Clear
25%
19°
32°
Sun
9/27
Clear
25%
19°
32°
34
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
34 AQI 6.2 µg/m³
O3
Ground-level ozone
33 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 34 Good 33 34
Tue 35 Good 35 27
Wed 33 Good 33 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 Sun Sep 13, 19:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2301 J/kg
MLCAPE1136 J/kg
MUCAPE2301 J/kg
SBCIN0 J/kg
MLCIN-36 J/kg
Lifted Index-4.1
Kinematics
0–6 km Shear8 kt
0–1 km Shear2 kt
Eff. Shear12 kt
0–1 km SRH-3
0–3 km SRH19
Eff. SRH19
Storm Motion113° @ 16 kt
0–1 km EHI-0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index30.5
Thermo & Levels
PWAT1.66 in
0–3 km LR8.1 °C/km
700–500 LR5.5 °C/km
Total Totals44.3
LCL811 hPa
LFC998 hPa
EL151 hPa
Freezing Lvl16,480 ft