Extreme Heat Warning — Clinton, IL, Washington, IL, Randolph, IL, Madison, IL, St. Clair, IL, Monroe, IL, Boone, MO, Moniteau, MO, Cole, MO, Osage, MO, Callaway, MO, Montgomery, MO, Gasconade, MO, Warren, MO, St. Charles, MO, Franklin, MO, St. Louis, MO, St. Louis City, MO, Jefferson, MO 8:00 PM Heat Advisory — Greene, IL, Macoupin, IL, Montgomery, IL, Bond, IL, Fayette, IL, Marion, 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, Audrain, MO, Lincoln, MO, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO 8:00 PM

Saint Francois County, Missouri, United States

Last updated: 5:13 AM CDT  ·  Refresh
24°C
Feels like 26°
Clear
▲ 36°  /  ▼ 24°
Wind
6 mph SSW
Humidity
73%
Dew Point
20°
Pressure
28.99 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
8%
Sunrise
6:14 AM
Sunset
7:59 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Saint Francois County is currently clear at 24°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2809 J/kg) — isolated convective development possible. Sunrise: 6:14AM · Sunset: 7:59PM.

Alerts

Extreme Heat Warning
Clinton, IL, Washington, IL, Randolph, IL, Madison, IL, St. Clair, IL, Monroe, IL, Boone, MO, Moniteau, MO, Cole, MO, Osage, MO, Callaway, MO, Montgomery, MO, Gasconade, MO, Warren, MO, St. Charles, MO, Franklin, MO, St. Louis, MO, St. Louis City, MO, Jefferson, MO
Expires 8:00 PM
Heat Advisory
Greene, IL, Macoupin, IL, Montgomery, IL, Bond, IL, Fayette, IL, Marion, 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, Audrain, MO, Lincoln, MO, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO
Expires 8:00 PM
39 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
7%
6 AM
22°
18%
7 AM
23°
14%
8 AM
25°
14%
9 AM
27°
14%
10 AM
29°
14%
11 AM
31°
14%
12 PM
32°
14%
1 PM
34°
3%
2 PM
34°
3%
3 PM
35°
3%
4 PM
35°
3%
5 PM
35°
3%
6 PM
34°
3%
7 PM
33°
3%
8 PM
31°
5%
9 PM
29°
10%
10 PM
28°
14%
11 PM
28°
14%
12 AM
27°
14%
1 AM
26°
23%
2 AM
26°
24%
3 AM
26°
24%
4 AM
26°
26%
7-Day Forecast
Today
36° 24°
Clear.
Wed
38° 24°
Mostly Clear with a 32% chance of rain.
Thu
38° 24°
Mostly Clear with a 28% chance of rain.
Fri
36° 23°
Clear.
Sat
40° 23°
Clear.
Sun
41° 23°
Mostly Clear.
Mon
36° 21°
Overcast with a 27% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 24° Clear 7% 6 mph SSW 73%
6 AM 22° Clear 18% 7 mph SSW 71%
7 AM 23° Clear 14% 7 mph SSW 71%
8 AM 25° Clear 14% 8 mph SW 66%
9 AM 27° Clear 14% 10 mph SW 60%
10 AM 29° Clear 14% 10 mph SW 56%
11 AM 31° Clear 14% 10 mph SW 52%
12 PM 32° Clear 14% 10 mph SW 48%
1 PM 34° Clear 3% 10 mph SW 44%
2 PM 34° Clear 3% 10 mph SW 43%
3 PM 35° Clear 3% 9 mph SW 42%
4 PM 35° Clear 3% 9 mph SW 42%
5 PM 35° Mostly Clear 3% 8 mph SW 46%
6 PM 34° Mostly Clear 3% 6 mph SW 50%
7 PM 33° Mostly Clear 3% 5 mph SSW 56%
8 PM 31° Mostly Clear 5% 5 mph SSW 59%
9 PM 29° Mostly Clear 10% 6 mph SSW 61%
10 PM 28° Mostly Clear 14% 6 mph SSW 64%
11 PM 28° Mostly Clear 14% 6 mph SSW 65%
12 AM 27° Mostly Clear 14% 7 mph SSW 66%
1 AM 26° Clear 23% 7 mph SSW 67%
2 AM 26° Clear 24% 7 mph SSW 67%
3 AM 26° Clear 24% 7 mph SW 68%
4 AM 26° Clear 26% 7 mph SW 68%
15-Day Forecast
Today
8/11
Clear
14%
24°
36°
Wed
8/12
Mostly Clear
32%
24°
38°
Thu
8/13
Mostly Clear
28%
24°
38°
Fri
8/14
Clear
15%
23°
36°
Sat
8/15
Clear
7%
23°
40°
Sun
8/16
Mostly Clear
18%
23°
41°
Mon
8/17
Overcast
27%
21°
36°
Tue
8/18
Drizzle
53%
19°
38°
Wed
8/19
Drizzle
53%
22°
39°
Thu
8/20
Clear
35%
23°
38°
Fri
8/21
Clear
60%
21°
37°
Sat
8/22
Drizzle
60%
21°
36°
Sun
8/23
Clear
60%
21°
36°
Mon
8/24
Drizzle
60%
20°
34°
Tue
8/25
Drizzle
60%
19°
34°
39
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
39 AQI 7.0 µg/m³
O3
Ground-level ozone
34 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 39 Good 34 39
Wed 29 Good 29 19
Thu 32 Good 32 24
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 11, 08:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE915 J/kg
MLCAPE1312 J/kg
MUCAPE1789 J/kg
SBCIN-534 J/kg
MLCIN0 J/kg
Lifted Index-4.4
Kinematics
0–6 km Shear14 kt
0–1 km Shear19 kt
Eff. Shear18 kt
0–1 km SRH150
0–3 km SRH95
Eff. SRH-36
Storm Motion323° @ 15 kt
0–1 km EHI0.9
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index28.8
Thermo & Levels
PWAT1.55 in
0–3 km LR4.2 °C/km
700–500 LR8.0 °C/km
Total Totals53.6
LCL924 hPa
LFC626 hPa
EL218 hPa
Freezing Lvl14,373 ft