Plainfield, Illinois

Last updated: 11:28 PM CDT  ·  Refresh
24°C
Feels like 28°
Partly Cloudy
▲ 27°  /  ▼ 21°
Wind
5 mph WSW
Humidity
94%
Dew Point
23°
Pressure
29.01 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
37%
Sunrise
5:42 AM
Sunset
8:15 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Plainfield is currently partly cloudy at 24°C. Precipitation is likely — peak probability 52% around 11 PM. Atmospheric instability is elevated (CAPE up to 2040 J/kg) — isolated convective development possible. Sunrise: 5:42AM · Sunset: 8:15PM.

Alerts

No active alerts for this location.
51 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
51%
12 AM
24°
30%
1 AM
23°
4%
2 AM
23°
5%
3 AM
22°
5%
4 AM
22°
6%
5 AM
21°
6%
6 AM
21°
3%
7 AM
21°
3%
8 AM
21°
3%
9 AM
23°
3%
10 AM
23°
3%
11 AM
24°
3%
12 PM
25°
3%
1 PM
23°
3%
2 PM
24°
3%
3 PM
24°
3%
4 PM
24°
3%
5 PM
24°
3%
6 PM
24°
3%
7 PM
23°
3%
8 PM
22°
3%
9 PM
21°
3%
10 PM
20°
3%
7-Day Forecast
Tonight
27° 21°
Partly Cloudy with a 51% chance of rain.
Tue
25° 17°
Partly Cloudy.
Wed
28° 16°
Clear.
Thu
28° 19°
Partly Cloudy with a 21% chance of rain.
Fri
23° 18°
Drizzle, 69% chance.
Sat
28° 17°
Drizzle, 69% chance.
Sun
27° 17°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 24° Partly Cloudy 51% 5 mph WSW 94%
12 AM 24° Clear 30% 6 mph W 92%
1 AM 23° Clear 4% 6 mph NW 92%
2 AM 23° Mostly Clear 5% 8 mph NNW 92%
3 AM 22° Partly Cloudy 5% 10 mph N 92%
4 AM 22° Mostly Cloudy 6% 11 mph N 93%
5 AM 21° Mostly Cloudy 6% 10 mph N 92%
6 AM 21° Mostly Cloudy 3% 10 mph N 92%
7 AM 21° Mostly Cloudy 3% 10 mph N 91%
8 AM 21° Overcast 3% 10 mph N 88%
9 AM 23° Overcast 3% 10 mph N 85%
10 AM 23° Mostly Cloudy 3% 10 mph N 82%
11 AM 24° Partly Cloudy 3% 10 mph N 78%
12 PM 25° Partly Cloudy 3% 10 mph N 74%
1 PM 23° Partly Cloudy 3% 10 mph N 69%
2 PM 24° Mostly Clear 3% 10 mph N 66%
3 PM 24° Clear 3% 11 mph N 63%
4 PM 24° Clear 3% 11 mph N 62%
5 PM 24° Clear 3% 10 mph NNE 63%
6 PM 24° Clear 3% 9 mph NNE 65%
7 PM 23° Clear 3% 8 mph NNE 66%
8 PM 22° Clear 3% 8 mph NNE 66%
9 PM 21° Clear 3% 8 mph NNE 66%
10 PM 20° Clear 3% 8 mph NNE 66%
15-Day Forecast
Today
7/27
Partly Cloudy
51%
21°
27°
Tue
7/28
Partly Cloudy
6%
17°
25°
Wed
7/29
Clear
6%
16°
28°
Thu
7/30
Partly Cloudy
21%
19°
28°
Fri
7/31
Drizzle
69%
18°
23°
Sat
8/1
Drizzle
69%
17°
28°
Sun
8/2
Clear
17%
17°
27°
Mon
8/3
Clear
17%
17°
28°
Tue
8/4
Drizzle
44%
18°
29°
Wed
8/5
Rain
66%
20°
29°
Thu
8/6
Rain
64%
18°
30°
Fri
8/7
Drizzle
60%
18°
30°
Sat
8/8
Drizzle
60%
18°
27°
Sun
8/9
Drizzle
60%
19°
27°
Mon
8/10
Drizzle
60%
19°
27°
51
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
51 AQI 9.1 µg/m³
O3
Ground-level ozone
35 AQI 39 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 51 Moderate 35 51
Wed 38 Good 38 33
Thu 46 Good 46 45
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 Tue Jul 28, 03:00'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
SBCAPE959 J/kg
MLCAPE2403 J/kg
MUCAPE3375 J/kg
SBCIN-256 J/kg
MLCIN0 J/kg
Lifted Index-3.5
Kinematics
0–6 km Shear44 kt
0–1 km Shear22 kt
Eff. Shear54 kt
0–1 km SRH40
0–3 km SRH30
Eff. SRH-15
Storm Motion284° @ 35 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.4
STP (eff)0.0
Supercell0.0
K-Index40.2
Thermo & Levels
PWAT2.18 in
0–3 km LR3.9 °C/km
700–500 LR6.6 °C/km
Total Totals51.5
LCL967 hPa
LFC615 hPa
EL231 hPa
Freezing Lvl16,217 ft