Excessive Heat Warning — Greene, IL, Macoupin, IL, Montgomery, IL, Bond, IL, Fayette, IL, Clinton, IL, Marion, IL, Washington, IL, Randolph, IL, Adams, IL, Brown, IL, Pike, IL, Calhoun, IL, Jersey, IL, Knox, MO, Lewis, MO, Shelby, MO, Marion, MO, Monroe, MO, Ralls, MO, Pike, MO, Montgomery, MO, Lincoln, MO, Gasconade, MO, Warren, MO, Franklin, MO, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO 9:00 PM Excessive Heat Watch 7:00 PM

Lewis County, Missouri, United States

Last updated: 7:44 AM CDT  ·  Refresh
26°C
Feels like 32°
Mostly Cloudy
▲ 37°  /  ▼ 24°
Wind
3 mph SW
Humidity
95%
Dew Point
25°
Pressure
29.26 inHg
Visibility
10 mi
UV Index
2.8
Cloud Cover
81%
Sunrise
5:59 AM
Sunset
8:26 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Lewis County is currently mostly cloudy at 26°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 4430 J/kg) — isolated convective development possible. Sunrise: 5:59AM · Sunset: 8:26PM.

Alerts

Excessive Heat Warning
Greene, IL, Macoupin, IL, Montgomery, IL, Bond, IL, Fayette, IL, Clinton, IL, Marion, IL, Washington, IL, Randolph, IL, Adams, IL, Brown, IL, Pike, IL, Calhoun, IL, Jersey, IL, Knox, MO, Lewis, MO, Shelby, MO, Marion, MO, Monroe, MO, Ralls, MO, Pike, MO, Montgomery, MO, Lincoln, MO, Gasconade, MO, Warren, MO, Franklin, MO, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO
Expires 9:00 PM
Excessive Heat Watch
Expires 7:00 PM
54 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
26°
30%
8 AM
28°
29%
9 AM
30°
21%
10 AM
32°
33%
11 AM
33°
33%
12 PM
36°
33%
1 PM
37°
38%
2 PM
37°
45%
3 PM
36°
46%
4 PM
35°
46%
5 PM
34°
39%
6 PM
32°
43%
7 PM
31°
43%
8 PM
30°
31%
9 PM
29°
32%
10 PM
28°
14%
11 PM
28°
14%
12 AM
27°
9%
1 AM
27°
17%
2 AM
27°
14%
3 AM
27°
14%
4 AM
27°
14%
5 AM
26°
14%
6 AM
26°
9%
7-Day Forecast
Today
37° 24°
Mostly Cloudy with a 46% chance of rain.
Mon
38° 26°
Partly Cloudy with a 25% chance of rain.
Tue
33° 21°
Partly Cloudy.
Wed
33° 19°
Mostly Clear with a 42% chance of rain.
Thu
34° 19°
Rain, 64% chance.
Fri
32° 21°
Rain, 64% chance.
Sat
32° 19°
Rain, 63% chance.
TimeTempConditionsPrecipWindHumidity
Now 26° Mostly Cloudy 30% 3 mph SW 95%
8 AM 28° Mostly Cloudy 29% 4 mph WSW 88%
9 AM 30° Mostly Cloudy 21% 6 mph WSW 80%
10 AM 32° Partly Cloudy 33% 6 mph WSW 73%
11 AM 33° Partly Cloudy 33% 7 mph W 66%
12 PM 36° Partly Cloudy 33% 8 mph WSW 58%
1 PM 37° Partly Cloudy 38% 7 mph WSW 55%
2 PM 37° Partly Cloudy 45% 7 mph WSW 54%
3 PM 36° Mostly Cloudy 46% 9 mph WSW 54%
4 PM 35° Mostly Cloudy 46% 9 mph WSW 56%
5 PM 34° Mostly Cloudy 39% 8 mph WSW 58%
6 PM 32° Mostly Cloudy 43% 8 mph ENE 62%
7 PM 31° Partly Cloudy 43% 6 mph ESE 63%
8 PM 30° Partly Cloudy 31% 4 mph SSW 64%
9 PM 29° Partly Cloudy 32% 7 mph SW 64%
10 PM 28° Partly Cloudy 14% 7 mph SW 67%
11 PM 28° Partly Cloudy 14% 6 mph SW 71%
12 AM 27° Partly Cloudy 9% 6 mph SSW 75%
1 AM 27° Partly Cloudy 17% 6 mph SW 76%
2 AM 27° Partly Cloudy 14% 7 mph SW 75%
3 AM 27° Mostly Cloudy 14% 7 mph SW 75%
4 AM 27° Mostly Cloudy 14% 6 mph SW 76%
5 AM 26° Mostly Cloudy 14% 6 mph SSW 77%
6 AM 26° Mostly Cloudy 9% 6 mph S 79%
15-Day Forecast
Today
7/26
Mostly Cloudy
46%
24°
37°
Mon
7/27
Partly Cloudy
25%
26°
38°
Tue
7/28
Partly Cloudy
18%
21°
33°
Wed
7/29
Mostly Clear
42%
19°
33°
Thu
7/30
Rain
64%
19°
34°
Fri
7/31
Rain
64%
21°
32°
Sat
8/1
Rain
63%
19°
32°
Sun
8/2
Clear
18%
18°
33°
Mon
8/3
Drizzle
44%
19°
34°
Tue
8/4
Rain
44%
21°
36°
Wed
8/5
Drizzle
68%
20°
36°
Thu
8/6
Drizzle
60%
20°
34°
Fri
8/7
Drizzle
60%
19°
34°
Sat
8/8
Drizzle
60%
21°
36°
Sun
8/9
Drizzle
60%
21°
37°
54
Moderate
U.S. Air Quality Index · Dominant: PM2.5
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
Dominant
54 AQI 11.0 µg/m³
O3
Ground-level ozone
43 AQI 46 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Mon 54 Moderate 43 54
Tue 53 Moderate 41 53
Wed 54 Moderate 42 54
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 Sun Jul 26, 11:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2974 J/kg
MLCAPE2991 J/kg
MUCAPE3967 J/kg
SBCIN-257 J/kg
MLCIN0 J/kg
Lifted Index-6.0
Kinematics
0–6 km Shear21 kt
0–1 km Shear15 kt
Eff. Shear17 kt
0–1 km SRH-21
0–3 km SRH-34
Eff. SRH-21
Storm Motion267° @ 18 kt
0–1 km EHI-0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index28.8
Thermo & Levels
PWAT1.68 in
0–3 km LR4.5 °C/km
700–500 LR6.4 °C/km
Total Totals45.7
LCL978 hPa
LFC720 hPa
EL158 hPa
Freezing Lvl16,125 ft