Heat Advisory — Houston, TX, Trinity, TX, Madison, TX, Walker, TX, San Jacinto, TX, Polk, TX, Burleson, TX, Brazos, TX, Washington, TX, Grimes, TX, Montgomery, TX, Northern Liberty, TX, Colorado, TX, Austin, TX, Waller, TX, Inland Harris, TX, Chambers, TX, Wharton, TX, Fort Bend, TX, Inland Jackson, TX, Inland Matagorda, TX, Inland Brazoria, TX, Inland Galveston, TX, Southern Liberty, TX, Coastal Harris, TX, Coastal Jackson, TX, Coastal Matagorda, TX, Coastal Brazoria, TX, Coastal Galveston, TX 7:00 PM

Madison County, Texas, United States

Last updated: 11:04 PM CDT  ·  Refresh
28°C
Feels like 31°
Clear
▲ 35°  /  ▼ 22°
Wind
6 mph S
Humidity
68%
Dew Point
22°
Pressure
29.58 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
0%
Sunrise
6:38 AM
Sunset
8:22 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Madison County is currently clear at 28°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 818 J/kg) — isolated convective development possible. Sunrise: 6:38AM · Sunset: 8:22PM.

Alerts

Heat Advisory
Houston, TX, Trinity, TX, Madison, TX, Walker, TX, San Jacinto, TX, Polk, TX, Burleson, TX, Brazos, TX, Washington, TX, Grimes, TX, Montgomery, TX, Northern Liberty, TX, Colorado, TX, Austin, TX, Waller, TX, Inland Harris, TX, Chambers, TX, Wharton, TX, Fort Bend, TX, Inland Jackson, TX, Inland Matagorda, TX, Inland Brazoria, TX, Inland Galveston, TX, Southern Liberty, TX, Coastal Harris, TX, Coastal Jackson, TX, Coastal Matagorda, TX, Coastal Brazoria, TX, Coastal Galveston, TX
Expires 7:00 PM
40 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
28°
3%
12 AM
28°
3%
1 AM
27°
3%
2 AM
26°
3%
3 AM
26°
5%
4 AM
24°
5%
5 AM
24°
6%
6 AM
22°
15%
7 AM
22°
15%
8 AM
24°
15%
9 AM
26°
3%
10 AM
29°
3%
11 AM
30°
3%
12 PM
32°
3%
1 PM
33°
3%
2 PM
35°
3%
3 PM
36°
3%
4 PM
36°
3%
5 PM
36°
3%
6 PM
36°
3%
7 PM
36°
3%
8 PM
34°
3%
9 PM
33°
3%
10 PM
30°
3%
7-Day Forecast
Tonight
35° 22°
Clear.
Tue
38° 22°
Clear.
Wed
39° 23°
Partly Cloudy.
Thu
38° 23°
Partly Cloudy.
Fri
40° 22°
Fog with a 22% chance of rain.
Sat
43° 24°
Clear.
Sun
41° 23°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 28° Clear 3% 6 mph S 68%
12 AM 28° Clear 3% 8 mph S 73%
1 AM 27° Clear 3% 8 mph SSW 78%
2 AM 26° Clear 3% 7 mph SSW 83%
3 AM 26° Mostly Clear 5% 7 mph SSW 89%
4 AM 24° Mostly Clear 5% 7 mph SSW 93%
5 AM 24° Mostly Clear 6% 7 mph SSW 94%
6 AM 22° Mostly Clear 15% 6 mph SSW 95%
7 AM 22° Partly Cloudy 15% 6 mph SSW 95%
8 AM 24° Mostly Clear 15% 9 mph SW 86%
9 AM 26° Mostly Clear 3% 11 mph SW 75%
10 AM 29° Mostly Clear 3% 12 mph SW 66%
11 AM 30° Clear 3% 11 mph SW 59%
12 PM 32° Clear 3% 10 mph SW 53%
1 PM 33° Clear 3% 10 mph SW 47%
2 PM 35° Clear 3% 9 mph SSW 44%
3 PM 36° Clear 3% 9 mph SSW 41%
4 PM 36° Clear 3% 9 mph SSW 38%
5 PM 36° Clear 3% 9 mph SSW 39%
6 PM 36° Clear 3% 9 mph S 40%
7 PM 36° Clear 3% 9 mph S 41%
8 PM 34° Clear 3% 9 mph S 47%
9 PM 33° Clear 3% 9 mph S 53%
10 PM 30° Clear 3% 9 mph S 59%
15-Day Forecast
Today
7/27
Clear
3%
22°
35°
Tue
7/28
Clear
15%
22°
38°
Wed
7/29
Partly Cloudy
7%
23°
39°
Thu
7/30
Partly Cloudy
6%
23°
38°
Fri
7/31
Fog
22%
22°
40°
Sat
8/1
Clear
17%
24°
43°
Sun
8/2
Clear
8%
23°
41°
Mon
8/3
Rain
18%
22°
41°
Tue
8/4
Clear
29%
21°
39°
Wed
8/5
Clear
19%
23°
39°
Thu
8/6
Clear
60%
23°
38°
Fri
8/7
Drizzle
60%
23°
39°
Sat
8/8
Clear
25%
23°
39°
Sun
8/9
Drizzle
60%
23°
39°
Mon
8/10
Drizzle
60%
23°
39°
40
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
40 AQI 7.2 µg/m³
O3
Ground-level ozone
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 40 Good 31 40
Wed 48 Good 29 48
Thu 60 Moderate 29 60
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 Jul 28, 02:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE221 J/kg
MLCAPE731 J/kg
MUCAPE1371 J/kg
SBCIN-595 J/kg
MLCIN0 J/kg
Lifted Index0.6
Kinematics
0–6 km Shear18 kt
0–1 km Shear8 kt
Eff. Shear33 kt
0–1 km SRH50
0–3 km SRH21
Eff. SRH-32
Storm Motion302° @ 14 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index20.2
Thermo & Levels
PWAT1.54 in
0–3 km LR4.8 °C/km
700–500 LR5.6 °C/km
Total Totals38.0
LCL912 hPa
LFC482 hPa
EL241 hPa
Freezing Lvl18,353 ft