Heat Advisory — Greene, IL, Macoupin, IL, Montgomery, IL, Fayette, IL, Calhoun, IL, Jersey, IL, Boone, MO, Callaway, MO, Montgomery, MO, Lincoln, MO 8:00 PM

Montgomery County, Missouri, United States

Last updated: 6:45 AM CDT  ·  Refresh
22°C
Feels like 25°
Mostly Clear
▲ 36°  /  ▼ 22°
Wind
4 mph ENE
Humidity
94%
Dew Point
21°
Pressure
29,31 inHg
Visibility
7 mi
UV Index
0,0
Cloud Cover
17%
Sunrise
6:50 AM
Sunset
7:09 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Montgomery County is currently mostly clear at 22°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1800 J/kg) — isolated convective development possible. Sunrise: 6:50AM · Sunset: 7:09PM.

Alerts

Heat Advisory
Greene, IL, Macoupin, IL, Montgomery, IL, Fayette, IL, Calhoun, IL, Jersey, IL, Boone, MO, Callaway, MO, Montgomery, MO, Lincoln, MO
Expires 8:00 PM
42 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
15%
7 AM
22°
31%
8 AM
23°
29%
9 AM
26°
21%
10 AM
28°
29%
11 AM
30°
29%
12 PM
32°
27%
1 PM
35°
23%
2 PM
35°
28%
3 PM
36°
28%
4 PM
34°
29%
5 PM
33°
41%
6 PM
31°
34%
7 PM
29°
29%
8 PM
28°
17%
9 PM
26°
18%
10 PM
26°
21%
11 PM
26°
21%
12 AM
26°
19%
1 AM
24°
19%
2 AM
24°
16%
3 AM
24°
14%
4 AM
24°
14%
5 AM
23°
14%
7-Day Forecast
Today
36° 22°
Mostly Clear with a 34% chance of rain.
Sat
37° 22°
Overcast with a 21% chance of rain.
Sun
33° 19°
Overcast with a 62% chance of rain.
Mon
25° 16°
Rain, 83% chance.
Tue
23° 11°
Partly Cloudy.
Wed
26° 10°
Mostly Cloudy.
Thu
26° 11°
Partly Cloudy.
TimeTempConditionsPrecipWindHumidity
Now 22° Mostly Clear 15% 4 mph ENE 94%
7 AM 22° Clear 31% 5 mph E 88%
8 AM 23° Mostly Clear 29% 5 mph E 82%
9 AM 26° Mostly Clear 21% 4 mph ESE 75%
10 AM 28° Clear 29% 4 mph SE 65%
11 AM 30° Clear 29% 4 mph SSE 58%
12 PM 32° Clear 27% 5 mph S 51%
1 PM 35° Clear 23% 5 mph SSW 48%
2 PM 35° Clear 28% 5 mph SSW 47%
3 PM 36° Clear 28% 5 mph SSW 45%
4 PM 34° Mostly Clear 29% 5 mph SSW 50%
5 PM 33° Partly Cloudy 41% 5 mph SSW 56%
6 PM 31° Partly Cloudy 34% 5 mph SSW 65%
7 PM 29° Partly Cloudy 29% 5 mph SSE 68%
8 PM 28° Mostly Clear 17% 6 mph SE 68%
9 PM 26° Mostly Clear 18% 7 mph ESE 68%
10 PM 26° Mostly Clear 21% 7 mph SE 69%
11 PM 26° Mostly Clear 21% 7 mph SE 72%
12 AM 26° Mostly Clear 19% 7 mph SSE 74%
1 AM 24° Mostly Clear 19% 7 mph SSE 76%
2 AM 24° Mostly Clear 16% 7 mph SSE 77%
3 AM 24° Mostly Clear 14% 7 mph SSE 78%
4 AM 24° Mostly Clear 14% 7 mph SSE 77%
5 AM 23° Partly Cloudy 14% 7 mph S 76%
15-Day Forecast
Today
9/18
Mostly Clear
34%
22°
36°
Sat
9/19
Overcast
21%
22°
37°
Sun
9/20
Overcast
62%
19°
33°
Mon
9/21
Rain
83%
16°
25°
Tue
9/22
Partly Cloudy
14%
11°
23°
Wed
9/23
Mostly Cloudy
3%
10°
26°
Thu
9/24
Partly Cloudy
8%
11°
26°
Fri
9/25
Overcast
28%
13°
24°
Sat
9/26
Mostly Cloudy
34%
13°
25°
Sun
9/27
Rain
57%
13°
26°
Mon
9/28
Drizzle
60%
15°
29°
Tue
9/29
Drizzle
60%
16°
29°
Wed
9/30
Drizzle
60%
15°
29°
Thu
10/1
Clear
60%
14°
28°
Fri
10/2
Drizzle
60%
13°
26°
42
Good
U.S. Air Quality Index · Dominant: O3
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
42 AQI 7.7 µg/m³
O3
Ground-level ozone
Dominant
42 AQI 46 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 42 Good 42 42
Sun 53 Moderate 39 53
Mon 43 Good 43 41
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 ven. sept. 18, 10:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE227 J/kg
MLCAPE343 J/kg
MUCAPE804 J/kg
SBCIN-407 J/kg
MLCIN-278 J/kg
Lifted Index-1.1
Kinematics
0–6 km Shear19 kt
0–1 km Shear13 kt
Eff. Shear10 kt
0–1 km SRH48
0–3 km SRH25
Eff. SRH-12
Storm Motion328° @ 15 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.6
Thermo & Levels
PWAT1.63 in
0–3 km LR4.3 °C/km
700–500 LR5.8 °C/km
Total Totals48.3
LCL981 hPa
LFC687 hPa
EL274 hPa
Freezing Lvl14,364 ft