Heat Advisory — Greene, IL, Macoupin, IL, Montgomery, IL, Fayette, IL, Calhoun, IL, Jersey, IL, Boone, MO, Callaway, MO, Montgomery, MO, Lincoln, MO 8:00 PM

Callaway County, Missouri, United States

Last updated: 6:45 AM CDT  ·  Refresh
22°C
Feels like 26°
Mostly Clear
▲ 36°  /  ▼ 22°
Wind
3 mph ENE
Humidity
90%
Dew Point
21°
Pressure
29.31 inHg
Visibility
8 mi
UV Index
0.0
Cloud Cover
19%
Sunrise
6:51 AM
Sunset
7:10 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Callaway County is currently mostly clear at 22°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1860 J/kg) — isolated convective development possible. Sunrise: 6:51AM · Sunset: 7:10PM.

Alerts

Heat Advisory
Greene, IL, Macoupin, IL, Montgomery, IL, Fayette, IL, Calhoun, IL, Jersey, IL, Boone, MO, Callaway, MO, Montgomery, MO, Lincoln, MO
Expires 8:00 PM
44 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
29%
7 AM
21°
34%
8 AM
23°
31%
9 AM
25°
31%
10 AM
27°
21%
11 AM
29°
21%
12 PM
31°
14%
1 PM
35°
11%
2 PM
35°
11%
3 PM
36°
11%
4 PM
35°
21%
5 PM
34°
24%
6 PM
32°
19%
7 PM
30°
19%
8 PM
29°
20%
9 PM
27°
18%
10 PM
27°
18%
11 PM
26°
18%
12 AM
26°
18%
1 AM
24°
16%
2 AM
24°
16%
3 AM
24°
16%
4 AM
24°
16%
5 AM
23°
12%
7-Day Forecast
Today
36° 22°
Clear with a 31% chance of rain.
Sat
37° 22°
Mostly Cloudy.
Sun
33° 19°
Mostly Cloudy with a 61% chance of rain.
Mon
24° 16°
Overcast with a 80% chance of rain.
Tue
24° 11°
Partly Cloudy with a 33% chance of rain.
Wed
26° 10°
Partly Cloudy.
Thu
25° 11°
Mostly Cloudy.
TimeTempConditionsPrecipWindHumidity
Now 22° Mostly Clear 29% 3 mph ENE 90%
7 AM 21° Clear 34% 3 mph E 87%
8 AM 23° Mostly Clear 31% 3 mph ESE 83%
9 AM 25° Mostly Clear 31% 3 mph SE 79%
10 AM 27° Clear 21% 4 mph SSE 70%
11 AM 29° Clear 21% 4 mph S 62%
12 PM 31° Clear 14% 4 mph S 54%
1 PM 35° Clear 11% 4 mph SSW 49%
2 PM 35° Clear 11% 5 mph SSW 46%
3 PM 36° Clear 11% 5 mph SSW 44%
4 PM 35° Clear 21% 4 mph SSW 45%
5 PM 34° Clear 24% 3 mph S 49%
6 PM 32° Clear 19% 4 mph SE 55%
7 PM 30° Clear 19% 4 mph ESE 61%
8 PM 29° Mostly Clear 20% 5 mph ESE 64%
9 PM 27° Mostly Clear 18% 5 mph ESE 68%
10 PM 27° Mostly Clear 18% 5 mph SE 67%
11 PM 26° Mostly Clear 18% 5 mph SE 69%
12 AM 26° Mostly Clear 18% 6 mph SSE 72%
1 AM 24° Mostly Clear 16% 6 mph SSE 73%
2 AM 24° Partly Cloudy 16% 6 mph SSE 74%
3 AM 24° Partly Cloudy 16% 6 mph SSE 74%
4 AM 24° Partly Cloudy 16% 6 mph S 74%
5 AM 23° Partly Cloudy 12% 6 mph S 72%
15-Day Forecast
Today
9/18
Clear
31%
22°
36°
Sat
9/19
Mostly Cloudy
18%
22°
37°
Sun
9/20
Mostly Cloudy
61%
19°
33°
Mon
9/21
Overcast
80%
16°
24°
Tue
9/22
Partly Cloudy
33%
11°
24°
Wed
9/23
Partly Cloudy
3%
10°
26°
Thu
9/24
Mostly Cloudy
15%
11°
25°
Fri
9/25
Overcast
28%
13°
24°
Sat
9/26
Mostly Cloudy
34%
13°
25°
Sun
9/27
Rain
54%
14°
26°
Mon
9/28
Drizzle
60%
15°
29°
Tue
9/29
Drizzle
60%
16°
28°
Wed
9/30
Drizzle
60%
15°
29°
Thu
10/1
Clear
60%
14°
28°
Fri
10/2
Drizzle
60%
13°
26°
44
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
42 AQI 7.5 µg/m³
O3
Ground-level ozone
Dominant
44 AQI 49 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 44 Good 44 42
Sun 53 Moderate 44 53
Mon 44 Good 44 37
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 Sep 18, 10:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE169 J/kg
MLCAPE283 J/kg
MUCAPE661 J/kg
SBCIN-435 J/kg
MLCIN-281 J/kg
Lifted Index-1.0
Kinematics
0–6 km Shear18 kt
0–1 km Shear11 kt
Eff. Shear11 kt
0–1 km SRH42
0–3 km SRH28
Eff. SRH-13
Storm Motion325° @ 15 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index32.8
Thermo & Levels
PWAT1.61 in
0–3 km LR4.4 °C/km
700–500 LR5.8 °C/km
Total Totals48.3
LCL975 hPa
LFC673 hPa
EL289 hPa
Freezing Lvl14,475 ft