Freeze Warning — Jefferson, IL, Wayne, IL, Perry, IL, Franklin, IL, Hamilton, IL, Jackson, IL, Williamson, IL, Saline, IL, Union, IL, Perry, MO, Bollinger, MO, Cape Girardeau, MO, Wayne, MO, Carter, MO, Ripley, MO, Butler, MO, Stoddard, MO 8:00 a. m.

Union County, Illinois, United States

Last updated: 1:18 p. m. CDT  ·  Refresh
13°C
Feels like 8°
Mostly Cloudy
▲ 13°  /  ▼ 2°
Wind
12 mph N
Humidity
62%
Dew Point
6°
Pressure
29,51 inHg
Visibility
10 mi
UV Index
5,4
Cloud Cover
61%
Sunrise
6:26 a. m.
Sunset
4:53 p. m.
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently mostly cloudy at 13°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:26A. M. · Sunset: 4:53P. M..

Alerts

Freeze Warning
Jefferson, IL, Wayne, IL, Perry, IL, Franklin, IL, Hamilton, IL, Jackson, IL, Williamson, IL, Saline, IL, Union, IL, Perry, MO, Bollinger, MO, Cape Girardeau, MO, Wayne, MO, Carter, MO, Ripley, MO, Butler, MO, Stoddard, MO
Expires 8:00 a. m.
31 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
13°
0%
2 p. m.
13°
0%
3 p. m.
13°
0%
4 p. m.
13°
0%
5 p. m.
12°
0%
6 p. m.
11°
0%
7 p. m.
11°
0%
8 p. m.
8°
0%
9 p. m.
7°
0%
10 p. m.
7°
0%
11 p. m.
6°
0%
12 a. m.
4°
0%
1 a. m.
3°
0%
2 a. m.
3°
0%
3 a. m.
3°
0%
4 a. m.
2°
0%
5 a. m.
2°
0%
6 a. m.
2°
0%
7 a. m.
3°
0%
8 a. m.
4°
0%
9 a. m.
6°
0%
10 a. m.
7°
0%
11 a. m.
8°
0%
12 p. m.
10°
0%
7-Day Forecast
Today
13° 2°
Partly Cloudy.
Sat
14° 2°
Mostly Clear.
Sun
19° 4°
Clear.
Mon
19° 7°
Clear.
Tue
21° 8°
Clear with a 31% chance of rain.
Wed
18° 7°
Mostly Clear with a 40% chance of rain.
Thu
14° 4°
Mostly Cloudy with a 38% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 13° Mostly Cloudy 0% 12 mph N 62%
2 p. m. 13° Partly Cloudy 0% 12 mph NNW 59%
3 p. m. 13° Partly Cloudy 0% 11 mph NNW 58%
4 p. m. 13° Partly Cloudy 0% 9 mph N 60%
5 p. m. 12° Mostly Clear 0% 7 mph N 65%
6 p. m. 11° Partly Cloudy 0% 6 mph N 71%
7 p. m. 11° Partly Cloudy 0% 6 mph N 74%
8 p. m. 8° Mostly Clear 0% 6 mph N 77%
9 p. m. 7° Mostly Clear 0% 5 mph N 79%
10 p. m. 7° Clear 0% 5 mph N 80%
11 p. m. 6° Clear 0% 4 mph N 81%
12 a. m. 4° Clear 0% 4 mph N 84%
1 a. m. 3° Clear 0% 4 mph N 86%
2 a. m. 3° Clear 0% 4 mph N 88%
3 a. m. 3° Clear 0% 4 mph N 89%
4 a. m. 2° Clear 0% 4 mph N 89%
5 a. m. 2° Clear 0% 4 mph N 90%
6 a. m. 2° Clear 0% 4 mph N 90%
7 a. m. 3° Mostly Clear 0% 4 mph N 88%
8 a. m. 4° Clear 0% 4 mph N 82%
9 a. m. 6° Mostly Clear 0% 5 mph N 71%
10 a. m. 7° Mostly Clear 0% 5 mph N 63%
11 a. m. 8° Mostly Clear 0% 5 mph N 59%
12 p. m. 10° Mostly Clear 0% 5 mph N 57%
15-Day Forecast
Today
11/6
Partly Cloudy
0%
2°
13°
Sat
11/7
Mostly Clear
0%
2°
14°
Sun
11/8
Clear
3%
4°
19°
Mon
11/9
Clear
3%
7°
19°
Tue
11/10
Clear
31%
8°
21°
Wed
11/11
Mostly Clear
40%
7°
18°
Thu
11/12
Mostly Cloudy
38%
4°
14°
Fri
11/13
Mostly Cloudy
30%
1°
11°
Sat
11/14
Mostly Clear
25%
-2°
11°
Sun
11/15
Partly Cloudy
48%
-2°
13°
Mon
11/16
Overcast
76%
2°
16°
Tue
11/17
Drizzle
80%
8°
16°
Wed
11/18
Drizzle
80%
8°
16°
Thu
11/19
Drizzle
68%
8°
16°
Fri
11/20
Drizzle
74%
7°
14°
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
23 AQI 4.2 µg/m³
O3
Ground-level ozone
Dominant
31 AQI 34 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 31 Good 31 23
Sun 31 Good 31 31
Mon 48 Good 31 48
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 vie. nov. 6, 18:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE58 J/kg
MLCAPE12 J/kg
MUCAPE0 J/kg
SBCIN0 J/kg
MLCIN-4 J/kg
Lifted Index10.4
Kinematics
0–6 km Shear15 kt
0–1 km Shear6 kt
Eff. Shear—
0–1 km SRH1
0–3 km SRH35
Eff. SRH—
Storm Motion340° @ 30 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-13.4
Thermo & Levels
PWAT0.41 in
0–3 km LR3.8 °C/km
700–500 LR7.2 °C/km
Total Totals32.5
LCL903 hPa
LFC999 hPa
EL870 hPa
Freezing Lvl10,692 ft