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: 6:53 PM CDT  ·  Refresh
31°C
Feels like 36°
Mostly Clear
▲ 34°  /  ▼ 22°
Wind
9 mph S
Humidity
64%
Dew Point
22°
Pressure
29.03 inHg
Visibility
10 mi
UV Index
4.0
Cloud Cover
16%
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 mostly clear at 31°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 2458 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
31°
11%
7 PM
29°
29%
8 PM
28°
31%
9 PM
26°
23%
10 PM
26°
23%
11 PM
25°
16%
12 AM
24°
9%
1 AM
24°
7%
2 AM
24°
8%
3 AM
23°
8%
4 AM
24°
8%
5 AM
22°
8%
6 AM
22°
8%
7 AM
24°
14%
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°
19%
3 PM
34°
9%
4 PM
34°
12%
5 PM
32°
12%
7-Day Forecast
Tonight
34° 22°
Mostly Clear with a 23% chance of rain.
Fri
35° 22°
Mostly Clear.
Sat
35° 22°
Partly Cloudy with a 31% chance of rain.
Sun
33° 20°
Mostly Cloudy with a 70% chance of rain.
Mon
33° 19°
Drizzle, 53% chance.
Tue
33° 18°
Thunderstorm, 70% chance.
Wed
34° 19°
Drizzle, 52% chance.
TimeTempConditionsPrecipWindHumidity
Now 31° Mostly Clear 11% 9 mph S 64%
7 PM 29° Mostly Clear 29% 9 mph SSE 68%
8 PM 28° Mostly Clear 31% 8 mph SSE 69%
9 PM 26° Mostly Clear 23% 7 mph S 69%
10 PM 26° Mostly Clear 23% 6 mph S 74%
11 PM 25° Partly Cloudy 16% 5 mph SSW 78%
12 AM 24° Partly Cloudy 9% 5 mph SSW 83%
1 AM 24° Partly Cloudy 7% 4 mph SSW 82%
2 AM 24° Mostly Clear 8% 4 mph SSW 81%
3 AM 23° Mostly Clear 8% 4 mph SSW 79%
4 AM 24° Mostly Clear 8% 4 mph SSW 82%
5 AM 22° Mostly Clear 8% 3 mph S 83%
6 AM 22° Clear 8% 3 mph S 84%
7 AM 24° Clear 14% 4 mph SSW 78%
8 AM 26° Mostly 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% 6 mph SSW 53%
12 PM 31° Partly Cloudy 18% 7 mph SSW 48%
1 PM 34° Partly Cloudy 18% 7 mph SSW 46%
2 PM 34° Partly Cloudy 19% 7 mph SSW 46%
3 PM 34° Partly Cloudy 9% 7 mph S 45%
4 PM 34° Partly Cloudy 12% 7 mph SSW 49%
5 PM 32° Mostly Clear 12% 7 mph SSW 52%
15-Day Forecast
Today
7/2
Mostly Clear
23%
22°
34°
Fri
7/3
Mostly Clear
18%
22°
35°
Sat
7/4
Partly Cloudy
31%
22°
35°
Sun
7/5
Mostly Cloudy
70%
20°
33°
Mon
7/6
Drizzle
53%
19°
33°
Tue
7/7
Thunderstorm
70%
18°
33°
Wed
7/8
Drizzle
52%
19°
34°
Thu
7/9
Rain
63%
22°
34°
Fri
7/10
Rain
69%
21°
34°
Sat
7/11
Overcast
44%
21°
35°
Sun
7/12
Rain
68%
19°
31°
Mon
7/13
Drizzle
60%
19°
32°
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
Fri 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, 22:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE2357 J/kg
MLCAPE2726 J/kg
MUCAPE3033 J/kg
SBCIN-106 J/kg
MLCIN0 J/kg
Lifted Index-5.6
Kinematics
0–6 km Shear4 kt
0–1 km Shear7 kt
Eff. Shear1 kt
0–1 km SRH-21
0–3 km SRH-28
Eff. SRH-28
Storm Motion177° @ 25 kt
0–1 km EHI-0.3
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index31.9
Thermo & Levels
PWAT1.72 in
0–3 km LR6.7 °C/km
700–500 LR6.3 °C/km
Total Totals49.1
LCL865 hPa
LFC758 hPa
EL153 hPa
Freezing Lvl14,823 ft