Montgomery County, Virginia, United States

Last updated: 6:48 AM CDT  ·  Refresh
21°C
Feels like 22°
Mostly Clear
▲ 29°  /  ▼ 17°
Wind
4 mph WSW
Humidity
86%
Dew Point
18°
Pressure
27.92 inHg
Visibility
10 mi
UV Index
2.7
Cloud Cover
22%
Sunrise
6:55 AM
Sunset
7:44 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Montgomery County is currently mostly clear at 21°C. Precipitation is likely — peak probability 80% around 12 PM. Atmospheric instability is elevated (CAPE up to 1603 J/kg) — isolated convective development possible. Sunrise: 6:55AM · Sunset: 7:44PM.

Alerts

No active alerts for this location.
38 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
21°
11%
8 AM
21°
42%
9 AM
22°
49%
10 AM
24°
41%
11 AM
25°
72%
12 PM
24°
79%
1 PM
26°
71%
2 PM
27°
49%
3 PM
28°
41%
4 PM
27°
44%
5 PM
28°
39%
6 PM
26°
24%
7 PM
24°
22%
8 PM
23°
22%
9 PM
21°
18%
10 PM
21°
15%
11 PM
20°
13%
12 AM
19°
13%
1 AM
19°
10%
2 AM
19°
16%
3 AM
19°
25%
4 AM
19°
25%
5 AM
18°
32%
6 AM
18°
37%
7-Day Forecast
Today
29° 17°
Partly Cloudy with a 71% chance of rain.
Sun
24° 16°
Mostly Cloudy with a 67% chance of rain.
Mon
27° 14°
Mostly Cloudy.
Tue
28° 13°
Partly Cloudy.
Wed
32° 14°
Partly Cloudy.
Thu
32° 15°
Partly Cloudy with a 38% chance of rain.
Fri
29° 14°
Drizzle, 50% chance.
TimeTempConditionsPrecipWindHumidity
Now 21° Mostly Clear 11% 4 mph WSW 86%
8 AM 21° Mostly Clear 42% 4 mph W 77%
9 AM 22° Partly Cloudy 49% 6 mph WNW 72%
10 AM 24° Mostly Cloudy 41% 9 mph NW 66%
11 AM 25° Mostly Cloudy 72% 9 mph NW 64%
12 PM 24° Thunderstorm 79% 8 mph NW 63%
1 PM 26° Mostly Cloudy 71% 6 mph WNW 60%
2 PM 27° Mostly Cloudy 49% 7 mph WNW 58%
3 PM 28° Mostly Cloudy 41% 8 mph WNW 58%
4 PM 27° Partly Cloudy 44% 8 mph WNW 61%
5 PM 28° Partly Cloudy 39% 8 mph NW 65%
6 PM 26° Partly Cloudy 24% 7 mph NW 71%
7 PM 24° Mostly Cloudy 22% 5 mph NW 77%
8 PM 23° Mostly Cloudy 22% 4 mph NW 80%
9 PM 21° Mostly Cloudy 18% 4 mph WNW 83%
10 PM 21° Mostly Cloudy 15% 3 mph WNW 85%
11 PM 20° Mostly Cloudy 13% 3 mph WNW 87%
12 AM 19° Mostly Cloudy 13% 2 mph WNW 89%
1 AM 19° Mostly Cloudy 10% 2 mph WNW 92%
2 AM 19° Mostly Cloudy 16% 2 mph NW 93%
3 AM 19° Mostly Cloudy 25% 2 mph NW 94%
4 AM 19° Mostly Cloudy 25% 2 mph NW 95%
5 AM 18° Mostly Cloudy 32% 2 mph NNW 95%
6 AM 18° Mostly Cloudy 37% 1 mph N 95%
15-Day Forecast
Today
9/5
Partly Cloudy
71%
17°
29°
Sun
9/6
Mostly Cloudy
67%
16°
24°
Mon
9/7
Mostly Cloudy
6%
14°
27°
Tue
9/8
Partly Cloudy
3%
13°
28°
Wed
9/9
Partly Cloudy
7%
14°
32°
Thu
9/10
Partly Cloudy
38%
15°
32°
Fri
9/11
Drizzle
50%
14°
29°
Sat
9/12
Partly Cloudy
34%
13°
29°
Sun
9/13
Drizzle
54%
16°
32°
Mon
9/14
Drizzle
47%
17°
32°
Tue
9/15
Drizzle
60%
16°
30°
Wed
9/16
Drizzle
60%
14°
28°
Thu
9/17
Drizzle
60%
13°
27°
Fri
9/18
Drizzle
60%
13°
27°
Sat
9/19
Drizzle
60%
13°
27°
38
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
38 AQI 7.0 µg/m³
O3
Ground-level ozone
35 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sun 38 Good 35 38
Mon 38 Good 38 34
Tue 42 Good 42 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 Sat Sep 5, 10:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE39 J/kg
MLCAPE234 J/kg
MUCAPE421 J/kg
SBCIN-410 J/kg
MLCIN-222 J/kg
Lifted Index0.3
Kinematics
0–6 km Shear26 kt
0–1 km Shear16 kt
Eff. Shear17 kt
0–1 km SRH45
0–3 km SRH43
Eff. SRH13
Storm Motion342° @ 24 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index31.5
Thermo & Levels
PWAT1.30 in
0–3 km LR4.6 °C/km
700–500 LR6.1 °C/km
Total Totals46.5
LCL914 hPa
LFC633 hPa
EL513 hPa
Freezing Lvl12,746 ft