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: 9:32 PM CDT  ·  Refresh
30°C
Feels like 33°
Clear
▲ 35°  /  ▼ 22°
Wind
6 mph S
Humidity
58%
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 30°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 838 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
30°
3%
10 PM
29°
3%
11 PM
28°
3%
12 AM
28°
3%
1 AM
27°
3%
2 AM
26°
3%
3 AM
25°
3%
4 AM
24°
3%
5 AM
22°
3%
6 AM
22°
3%
7 AM
23°
3%
8 AM
25°
3%
9 AM
27°
3%
10 AM
28°
3%
11 AM
30°
3%
12 PM
32°
3%
1 PM
34°
3%
2 PM
34°
3%
3 PM
36°
3%
4 PM
38°
3%
5 PM
36°
3%
6 PM
36°
3%
7 PM
35°
3%
8 PM
34°
3%
7-Day Forecast
Tonight
35° 22°
Clear.
Tue
38° 22°
Mostly Clear.
Wed
39° 23°
Partly Cloudy.
Thu
39° 24°
Partly Cloudy.
Fri
40° 23°
Clear.
Sat
43° 24°
Clear with a 21% chance of rain.
Sun
40° 23°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 30° Clear 3% 6 mph S 58%
10 PM 29° Clear 3% 7 mph S 63%
11 PM 28° Clear 3% 8 mph S 70%
12 AM 28° Clear 3% 8 mph S 76%
1 AM 27° Clear 3% 8 mph SSW 81%
2 AM 26° Mostly Clear 3% 8 mph SSW 86%
3 AM 25° Mostly Clear 3% 7 mph SSW 91%
4 AM 24° Partly Cloudy 3% 7 mph SSW 93%
5 AM 22° Partly Cloudy 3% 6 mph SSW 94%
6 AM 22° Partly Cloudy 3% 6 mph SSW 94%
7 AM 23° Partly Cloudy 3% 8 mph SSW 90%
8 AM 25° Partly Cloudy 3% 10 mph SW 83%
9 AM 27° Partly Cloudy 3% 11 mph SW 74%
10 AM 28° Partly Cloudy 3% 11 mph SW 67%
11 AM 30° Partly Cloudy 3% 10 mph SW 60%
12 PM 32° Mostly Clear 3% 10 mph SW 54%
1 PM 34° Clear 3% 9 mph SSW 48%
2 PM 34° Clear 3% 9 mph SSW 44%
3 PM 36° Clear 3% 9 mph SSW 41%
4 PM 38° Clear 3% 9 mph SSW 39%
5 PM 36° Clear 3% 9 mph SSW 40%
6 PM 36° Clear 3% 9 mph S 40%
7 PM 35° Clear 3% 9 mph S 44%
8 PM 34° Clear 3% 9 mph S 50%
15-Day Forecast
Today
7/27
Clear
3%
22°
35°
Tue
7/28
Mostly Clear
3%
22°
38°
Wed
7/29
Partly Cloudy
7%
23°
39°
Thu
7/30
Partly Cloudy
3%
24°
39°
Fri
7/31
Clear
8%
23°
40°
Sat
8/1
Clear
21%
24°
43°
Sun
8/2
Clear
8%
23°
40°
Mon
8/3
Rain
18%
22°
41°
Tue
8/4
Rain
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
60%
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, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE463 J/kg
MLCAPE688 J/kg
MUCAPE946 J/kg
SBCIN-433 J/kg
MLCIN0 J/kg
Lifted Index-0.1
Kinematics
0–6 km Shear18 kt
0–1 km Shear9 kt
Eff. Shear29 kt
0–1 km SRH46
0–3 km SRH15
Eff. SRH-30
Storm Motion303° @ 14 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index19.4
Thermo & Levels
PWAT1.51 in
0–3 km LR5.4 °C/km
700–500 LR5.6 °C/km
Total Totals38.0
LCL884 hPa
LFC503 hPa
EL213 hPa
Freezing Lvl18,304 ft