Freeze 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, Madison, IL, St. Clair, IL, Monroe, IL, 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, Warren, MO, St. Charles, MO, Franklin, MO, St. Louis, MO, St. Louis City, MO, Jefferson, MO, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO 8:00 AM

Boone County, Missouri, United States

Last updated: 1:19 PM CDT  ·  Refresh
9°C
Feels like 8°
Mostly Cloudy
▲ 11°  /  ▼ 1°
Wind
7 mph N
Humidity
73%
Dew Point
5°
Pressure
29.40 inHg
Visibility
10 mi
UV Index
3.6
Cloud Cover
83%
Sunrise
6:41 AM
Sunset
5:03 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Boone County is currently mostly cloudy at 10°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:41AM · Sunset: 5:03PM.

Alerts

Freeze 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, Madison, IL, St. Clair, IL, Monroe, IL, 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, Warren, MO, St. Charles, MO, Franklin, MO, St. Louis, MO, St. Louis City, MO, Jefferson, MO, Crawford, MO, Washington, MO, St. Francois, MO, Ste. Genevieve, MO, Iron, MO, Madison, MO, Reynolds, MO
Expires 8:00 AM
31 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
9°
0%
2 PM
10°
0%
3 PM
10°
0%
4 PM
10°
0%
5 PM
9°
0%
6 PM
8°
0%
7 PM
7°
0%
8 PM
7°
0%
9 PM
6°
0%
10 PM
5°
0%
11 PM
4°
0%
12 AM
3°
0%
1 AM
3°
0%
2 AM
3°
0%
3 AM
2°
0%
4 AM
1°
0%
5 AM
1°
0%
6 AM
1°
0%
7 AM
2°
0%
8 AM
2°
0%
9 AM
4°
0%
10 AM
6°
0%
11 AM
7°
0%
12 PM
8°
0%
7-Day Forecast
Today
11° 1°
Mostly Cloudy.
Sat
12° 1°
Mostly Cloudy.
Sun
18° 3°
Mostly Clear.
Mon
19° 6°
Clear.
Tue
18° 7°
Clear.
Wed
16° 4°
Partly Cloudy with a 22% chance of rain.
Thu
11° 2°
Mostly Cloudy with a 31% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 9° Mostly Cloudy 0% 7 mph N 73%
2 PM 10° Mostly Cloudy 0% 6 mph N 71%
3 PM 10° Mostly Cloudy 0% 6 mph N 69%
4 PM 10° Mostly Cloudy 0% 6 mph N 72%
5 PM 9° Mostly Cloudy 0% 5 mph N 76%
6 PM 8° Mostly Cloudy 0% 4 mph N 80%
7 PM 7° Mostly Cloudy 0% 4 mph N 82%
8 PM 7° Partly Cloudy 0% 4 mph N 84%
9 PM 6° Partly Cloudy 0% 4 mph NNE 86%
10 PM 5° Partly Cloudy 0% 3 mph NNE 87%
11 PM 4° Partly Cloudy 0% 3 mph NNE 88%
12 AM 3° Partly Cloudy 0% 2 mph NNE 89%
1 AM 3° Partly Cloudy 0% 2 mph NE 89%
2 AM 3° Mostly Cloudy 0% 1 mph NE 89%
3 AM 2° Partly Cloudy 0% 1 mph N 89%
4 AM 1° Partly Cloudy 0% 1 mph NW 90%
5 AM 1° Mostly Cloudy 0% 1 mph NW 90%
6 AM 1° Mostly Cloudy 0% 1 mph WNW 90%
7 AM 2° Mostly Cloudy 0% 1 mph W 89%
8 AM 2° Mostly Cloudy 0% 1 mph WSW 86%
9 AM 4° Partly Cloudy 0% 2 mph WSW 80%
10 AM 6° Mostly Cloudy 0% 2 mph WSW 74%
11 AM 7° Mostly Cloudy 0% 3 mph W 70%
12 PM 8° Mostly Cloudy 0% 3 mph W 67%
15-Day Forecast
Today
11/6
Mostly Cloudy
0%
1°
11°
Sat
11/7
Mostly Cloudy
0%
1°
12°
Sun
11/8
Mostly Clear
3%
3°
18°
Mon
11/9
Clear
3%
6°
19°
Tue
11/10
Clear
3%
7°
18°
Wed
11/11
Partly Cloudy
22%
4°
16°
Thu
11/12
Mostly Cloudy
31%
2°
11°
Fri
11/13
Partly Cloudy
31%
-1°
9°
Sat
11/14
Clear
35%
-6°
11°
Sun
11/15
Mostly Cloudy
50%
-4°
13°
Mon
11/16
Overcast
61%
2°
14°
Tue
11/17
Drizzle
79%
8°
15°
Wed
11/18
Drizzle
83%
7°
14°
Thu
11/19
Drizzle
71%
6°
13°
Fri
11/20
Drizzle
70%
6°
12°
31
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
19 AQI 3.6 µg/m³
O3
Ground-level ozone
Dominant
31 AQI 35 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 31 Good 31 19
Sun 34 Good 26 34
Mon 54 Moderate 29 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 Fri Nov 6, 18:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE64 J/kg
MLCAPE15 J/kg
MUCAPE0 J/kg
SBCIN0 J/kg
MLCIN-3 J/kg
Lifted Index13.2
Kinematics
0–6 km Shear14 kt
0–1 km Shear3 kt
Eff. Shear—
0–1 km SRH5
0–3 km SRH33
Eff. SRH—
Storm Motion12° @ 24 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-9.8
Thermo & Levels
PWAT0.40 in
0–3 km LR2.5 °C/km
700–500 LR7.7 °C/km
Total Totals31.5
LCL927 hPa
LFC996 hPa
EL866 hPa
Freezing Lvl3,068 ft