Excessive Heat Watch 12:00 AM Heat Advisory — Knox, MO, Lewis, MO, Shelby, MO, Marion, MO, Monroe, MO, Ralls, MO, Pike, MO, Boone, MO, Audrain, MO, Moniteau, MO, Cole, MO, Osage, MO, Callaway, MO, Montgomery, MO, Lincoln, MO, Gasconade, MO, Crawford, MO, Washington, MO, St. Francois, MO, Iron, MO, Madison, MO, Reynolds, MO, Warren, MO, St. Charles, MO, Franklin, MO, St. Louis, MO, St. Louis City, MO, Jefferson, MO, Ste. Genevieve, MO 10:00 PM Excessive Heat Warning — 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, Ste. Genevieve, MO, 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, Iron, MO, Madison, MO, Reynolds, MO 8:00 PM

Saint Francois County, Missouri, United States

Last updated: 7:51 PM CDT  ·  Refresh
29°C
Feels like 33°
Clear
▲ 34°  /  ▼ 21°
Wind
9 mph S
Humidity
68%
Dew Point
22°
Pressure
29.03 inHg
Visibility
10 mi
UV Index
1.8
Cloud Cover
9%
Sunrise
5:44 AM
Sunset
8:27 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Saint Francois County is currently clear at 30°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2625 J/kg) — isolated convective development possible. Sunrise: 5:44AM · Sunset: 8:27PM.

Alerts

Excessive Heat Watch
Expires 12:00 AM
Heat Advisory
Knox, MO, Lewis, MO, Shelby, MO, Marion, MO, Monroe, MO, Ralls, MO, Pike, MO, Boone, MO, Audrain, MO, Moniteau, MO, Cole, MO, Osage, MO, Callaway, MO, Montgomery, MO, Lincoln, MO, Gasconade, MO, Crawford, MO, Washington, MO, St. Francois, MO, Iron, MO, Madison, MO, Reynolds, MO, Warren, MO, St. Charles, MO, Franklin, MO, St. Louis, MO, St. Louis City, MO, Jefferson, MO, Ste. Genevieve, MO
Expires 10:00 PM
Excessive Heat Warning
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, Ste. Genevieve, MO, 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, Iron, MO, Madison, MO, Reynolds, MO
Expires 8:00 PM
58 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
29°
11%
8 PM
28°
31%
9 PM
26°
23%
10 PM
26°
23%
11 PM
25°
16%
12 AM
24°
9%
1 AM
23°
7%
2 AM
23°
7%
3 AM
23°
8%
4 AM
24°
8%
5 AM
21°
8%
6 AM
22°
8%
7 AM
24°
13%
8 AM
26°
14%
9 AM
28°
14%
10 AM
29°
14%
11 AM
31°
20%
12 PM
31°
18%
1 PM
34°
18%
2 PM
34°
18%
3 PM
35°
9%
4 PM
34°
11%
5 PM
33°
12%
6 PM
32°
5%
7-Day Forecast
Tonight
34° 21°
Clear with a 23% chance of rain.
Fri
35° 21°
Mostly Clear.
Sat
36° 22°
Partly Cloudy with a 31% chance of rain.
Sun
33° 21°
Mostly Cloudy with a 68% chance of rain.
Mon
33° 19°
Drizzle, 53% chance.
Tue
33° 18°
Rain, 70% chance.
Wed
34° 19°
Drizzle, 52% chance.
TimeTempConditionsPrecipWindHumidity
Now 29° Clear 11% 9 mph S 68%
8 PM 28° Mostly Clear 31% 9 mph SSE 69%
9 PM 26° Mostly Clear 23% 8 mph S 69%
10 PM 26° Mostly Clear 23% 7 mph S 73%
11 PM 25° Mostly Clear 16% 6 mph S 78%
12 AM 24° Partly Cloudy 9% 5 mph S 83%
1 AM 23° Partly Cloudy 7% 5 mph SSW 82%
2 AM 23° Mostly Clear 7% 4 mph SSW 82%
3 AM 23° Mostly Clear 8% 4 mph SSW 80%
4 AM 24° Mostly Clear 8% 4 mph SSW 82%
5 AM 21° Clear 8% 3 mph S 83%
6 AM 22° Clear 8% 3 mph S 84%
7 AM 24° Clear 13% 4 mph SSW 78%
8 AM 26° Clear 14% 5 mph SSW 70%
9 AM 28° Mostly Clear 14% 6 mph SSW 63%
10 AM 29° Partly Cloudy 14% 6 mph SSW 58%
11 AM 31° Partly Cloudy 20% 7 mph SSW 53%
12 PM 31° Mostly Cloudy 18% 7 mph SSW 48%
1 PM 34° Partly Cloudy 18% 7 mph SSW 47%
2 PM 34° Partly Cloudy 18% 7 mph SSW 46%
3 PM 35° Partly Cloudy 9% 7 mph S 45%
4 PM 34° Partly Cloudy 11% 7 mph SSW 49%
5 PM 33° Mostly Clear 12% 7 mph SSW 52%
6 PM 32° Mostly Clear 5% 7 mph SSW 56%
15-Day Forecast
Today
7/2
Clear
23%
21°
34°
Fri
7/3
Mostly Clear
18%
21°
35°
Sat
7/4
Partly Cloudy
31%
22°
36°
Sun
7/5
Mostly Cloudy
68%
21°
33°
Mon
7/6
Drizzle
53%
19°
33°
Tue
7/7
Rain
70%
18°
33°
Wed
7/8
Drizzle
52%
19°
34°
Thu
7/9
Rain
63%
19°
34°
Fri
7/10
Rain
69%
21°
36°
Sat
7/11
Thunderstorm
51%
21°
37°
Sun
7/12
Rain
68%
19°
31°
Mon
7/13
Drizzle
60%
19°
33°
Tue
7/14
Drizzle
60%
19°
33°
Wed
7/15
Drizzle
60%
19°
33°
Thu
7/16
Drizzle
60%
20°
34°
58
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
58 AQI 12.9 µg/m³
O3
Ground-level ozone
34 AQI 37 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 58 Moderate 34 58
Sat 56 Moderate 28 56
Sun 57 Moderate 28 57
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 Thu Jul 2, 23:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2067 J/kg
MLCAPE2700 J/kg
MUCAPE3163 J/kg
SBCIN-171 J/kg
MLCIN0 J/kg
Lifted Index-5.1
Kinematics
0–6 km Shear2 kt
0–1 km Shear8 kt
Eff. Shear2 kt
0–1 km SRH-29
0–3 km SRH-21
Eff. SRH-21
Storm Motion179° @ 26 kt
0–1 km EHI-0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index29.9
Thermo & Levels
PWAT1.64 in
0–3 km LR6.3 °C/km
700–500 LR6.3 °C/km
Total Totals48.1
LCL879 hPa
LFC740 hPa
EL161 hPa
Freezing Lvl14,869 ft