Union County, Illinois, United States

Last updated: 2:07 PM CDT  ·  Refresh
27°C
Feels like 27°
Partly Cloudy
▲ 27°  /  ▼ 12°
Wind
6 mph NNE
Humidity
37%
Dew Point
11°
Pressure
29.92 inHg
Visibility
10 mi
UV Index
6.5
Cloud Cover
36%
Sunrise
6:22 AM
Sunset
5:13 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Union County is currently partly cloudy at 27°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:22AM · Sunset: 5:13PM.

Alerts

No active alerts for this location.
47 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
27°
0%
4 PM
27°
0%
5 PM
27°
0%
6 PM
25°
0%
7 PM
23°
0%
8 PM
22°
0%
9 PM
19°
0%
10 PM
19°
0%
11 PM
18°
0%
12 AM
17°
0%
1 AM
17°
0%
2 AM
16°
0%
3 AM
16°
0%
4 AM
15°
0%
5 AM
12°
0%
6 AM
12°
0%
7 AM
12°
0%
8 AM
12°
0%
9 AM
14°
0%
10 AM
17°
0%
11 AM
18°
0%
12 PM
19°
0%
1 PM
22°
0%
2 PM
23°
0%
7-Day Forecast
Today
27° 12°
Mostly Clear.
Sat
25° 11°
Mostly Cloudy.
Sun
24° 8°
Mostly Cloudy.
Mon
25° 11°
Overcast.
Tue
27° 12°
Partly Cloudy.
Wed
27° 12°
Overcast with a 20% chance of rain.
Thu
26° 12°
Overcast with a 58% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 27° Partly Cloudy 0% 6 mph NNE 37%
4 PM 27° Partly Cloudy 0% 6 mph NNE 37%
5 PM 27° Clear 0% 6 mph NNE 39%
6 PM 25° Clear 0% 5 mph N 44%
7 PM 23° Clear 0% 5 mph N 51%
8 PM 22° Clear 0% 6 mph N 57%
9 PM 19° Mostly Clear 0% 6 mph N 62%
10 PM 19° Partly Cloudy 0% 6 mph NNE 69%
11 PM 18° Partly Cloudy 0% 6 mph NNE 74%
12 AM 17° Mostly Cloudy 0% 6 mph NNE 76%
1 AM 17° Mostly Cloudy 0% 6 mph NNE 76%
2 AM 16° Mostly Cloudy 0% 6 mph NNE 76%
3 AM 16° Mostly Cloudy 0% 6 mph NE 78%
4 AM 15° Mostly Cloudy 0% 6 mph NE 79%
5 AM 12° Mostly Cloudy 0% 6 mph NE 80%
6 AM 12° Mostly Cloudy 0% 6 mph NE 81%
7 AM 12° Mostly Cloudy 0% 6 mph NE 82%
8 AM 12° Mostly Cloudy 0% 6 mph NE 81%
9 AM 14° Mostly Cloudy 0% 7 mph NE 76%
10 AM 17° Mostly Cloudy 0% 7 mph NE 70%
11 AM 18° Mostly Cloudy 0% 7 mph NE 64%
12 PM 19° Mostly Cloudy 0% 7 mph NE 60%
1 PM 22° Mostly Cloudy 0% 7 mph NNE 57%
2 PM 23° Partly Cloudy 0% 7 mph NNE 50%
15-Day Forecast
Today
11/6
Mostly Clear
0%
12°
27°
Sat
11/7
Mostly Cloudy
0%
11°
25°
Sun
11/8
Mostly Cloudy
3%
8°
24°
Mon
11/9
Overcast
3%
11°
25°
Tue
11/10
Partly Cloudy
3%
12°
27°
Wed
11/11
Overcast
20%
12°
27°
Thu
11/12
Overcast
58%
12°
26°
Fri
11/13
Clear
21%
8°
22°
Sat
11/14
Mostly Cloudy
22%
2°
21°
Sun
11/15
Clear
47%
1°
23°
Mon
11/16
Clear
70%
2°
24°
Tue
11/17
Drizzle
73%
13°
26°
Wed
11/18
Drizzle
82%
13°
25°
Thu
11/19
Drizzle
86%
13°
24°
Fri
11/20
Drizzle
81%
13°
24°
47
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
47 AQI 8.5 µg/m³
O3
Ground-level ozone
35 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Sat 47 Good 35 47
Sun 46 Good 31 46
Mon 39 Good 31 39
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 70 80 90 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE53 J/kg
MLCAPE8 J/kg
MUCAPE53 J/kg
SBCIN0 J/kg
MLCIN-2 J/kg
Lifted Index4.9
Kinematics
0–6 km Shear30 kt
0–1 km Shear2 kt
Eff. Shear—
0–1 km SRH-9
0–3 km SRH84
Eff. SRH—
Storm Motion313° @ 26 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index11.6
Thermo & Levels
PWAT0.80 in
0–3 km LR7.2 °C/km
700–500 LR5.5 °C/km
Total Totals30.5
LCL805 hPa
LFC1013 hPa
EL868 hPa
Freezing Lvl14,472 ft