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, Matagorda Islands, TX, Brazoria Islands, TX, Galveston Island, TX, Bolivar Peninsula, TX 7:00 PM

Montgomery County, Texas, United States

Last updated: 3:41 AM CDT  ·  Refresh
27°C
Feels like 29°
Mostly Clear
▲ 38°  /  ▼ 26°
Wind
6 mph SSW
Humidity
84%
Dew Point
24°
Pressure
29.79 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
21%
Sunrise
6:54 AM
Sunset
7:52 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Montgomery County is currently mostly clear at 27°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2023 J/kg) — isolated convective development possible. Sunrise: 6:54AM · Sunset: 7:52PM.

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, Matagorda Islands, TX, Brazoria Islands, TX, Galveston Island, TX, Bolivar Peninsula, TX
Expires 7:00 PM
61 AQI · Moderate Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
3%
4 AM
27°
3%
5 AM
24°
3%
6 AM
24°
3%
7 AM
24°
3%
8 AM
27°
3%
9 AM
27°
3%
10 AM
29°
3%
11 AM
31°
3%
12 PM
32°
3%
1 PM
36°
3%
2 PM
36°
6%
3 PM
37°
15%
4 PM
37°
3%
5 PM
38°
13%
6 PM
37°
13%
7 PM
36°
3%
8 PM
35°
3%
9 PM
34°
3%
10 PM
32°
3%
11 PM
31°
3%
12 AM
31°
3%
1 AM
31°
3%
2 AM
30°
3%
7-Day Forecast
Today
38° 26°
Partly Cloudy.
Wed
39° 26°
Mostly Clear.
Thu
41° 26°
Partly Cloudy with a 43% chance of rain.
Fri
38° 25°
Mostly Cloudy with a 45% chance of rain.
Sat
40° 24°
Clear.
Sun
39° 25°
Clear.
Mon
38° 24°
Rain.
TimeTempConditionsPrecipWindHumidity
Now 27° Mostly Clear 3% 6 mph SSW 84%
4 AM 27° Mostly Clear 3% 6 mph SSW 85%
5 AM 24° Mostly Clear 3% 6 mph SSW 87%
6 AM 24° Mostly Clear 3% 5 mph SSW 89%
7 AM 24° Mostly Clear 3% 5 mph SSW 87%
8 AM 27° Partly Cloudy 3% 6 mph SW 82%
9 AM 27° Partly Cloudy 3% 7 mph SW 76%
10 AM 29° Partly Cloudy 3% 6 mph WSW 67%
11 AM 31° Mostly Clear 3% 4 mph WSW 59%
12 PM 32° Partly Cloudy 3% 3 mph WSW 51%
1 PM 36° Mostly Clear 3% 2 mph WSW 46%
2 PM 36° Mostly Clear 6% 3 mph S 42%
3 PM 37° Partly Cloudy 15% 4 mph SE 39%
4 PM 37° Mostly Clear 3% 5 mph SE 39%
5 PM 38° Mostly Clear 13% 6 mph SSE 42%
6 PM 37° Mostly Clear 13% 7 mph SSE 44%
7 PM 36° Mostly Clear 3% 7 mph SSE 48%
8 PM 35° Clear 3% 8 mph SSE 54%
9 PM 34° Clear 3% 9 mph S 60%
10 PM 32° Clear 3% 9 mph S 64%
11 PM 31° Clear 3% 8 mph S 67%
12 AM 31° Clear 3% 8 mph SSW 68%
1 AM 31° Clear 3% 7 mph SSW 71%
2 AM 30° Clear 3% 7 mph SSW 74%
15-Day Forecast
Today
8/25
Partly Cloudy
15%
26°
38°
Wed
8/26
Mostly Clear
12%
26°
39°
Thu
8/27
Partly Cloudy
43%
26°
41°
Fri
8/28
Mostly Cloudy
45%
25°
38°
Sat
8/29
Clear
16%
24°
40°
Sun
8/30
Clear
16%
25°
39°
Mon
8/31
Rain
19%
24°
38°
Tue
9/1
Clear
18%
24°
39°
Wed
9/2
Clear
44%
24°
39°
Thu
9/3
Clear
36%
24°
38°
Fri
9/4
Drizzle
60%
24°
39°
Sat
9/5
Drizzle
60%
24°
39°
Sun
9/6
Drizzle
60%
24°
38°
Mon
9/7
Drizzle
60%
25°
38°
Tue
9/8
Drizzle
60%
25°
38°
61
Moderate
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
56 AQI 11.8 µg/m³
O3
Ground-level ozone
Dominant
61 AQI 58 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 61 Moderate 61 56
Wed 51 Moderate 50 51
Thu 52 Moderate 48 52
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 25, 07:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE1753 J/kg
MLCAPE979 J/kg
MUCAPE1753 J/kg
SBCIN-265 J/kg
MLCIN-356 J/kg
Lifted Index-5.4
Kinematics
0–6 km Shear22 kt
0–1 km Shear11 kt
Eff. Shear—
0–1 km SRH-60
0–3 km SRH-38
Eff. SRH—
Storm Motion108° @ 19 kt
0–1 km EHI-0.7
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index21.9
Thermo & Levels
PWAT1.72 in
0–3 km LR4.4 °C/km
700–500 LR7.0 °C/km
Total Totals40.1
LCL968 hPa
LFC670 hPa
EL172 hPa
Freezing Lvl16,191 ft