Severe Thunderstorm Watch 12:00 AM

Rock Island County, Illinois, United States

Last updated: 10:19 PM CDT  ·  Refresh
22°C
Feels like 24°
Clear
▲ 29°  /  ▼ 16°
Wind
6 mph NW
Humidity
90%
Dew Point
20°
Pressure
29.26 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
9%
Sunrise
6:17 AM
Sunset
7:52 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Rock Island County is currently clear at 22°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1550 J/kg) — isolated convective development possible. Sunrise: 6:17AM · Sunset: 7:52PM.

Alerts

Severe Thunderstorm Watch
Expires 12:00 AM
37 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
3%
11 PM
21°
14%
12 AM
21°
14%
1 AM
19°
3%
2 AM
19°
3%
3 AM
18°
3%
4 AM
17°
3%
5 AM
16°
3%
6 AM
16°
3%
7 AM
17°
3%
8 AM
19°
3%
9 AM
22°
3%
10 AM
24°
5%
11 AM
25°
5%
12 PM
26°
5%
1 PM
28°
8%
2 PM
28°
16%
3 PM
28°
16%
4 PM
28°
3%
5 PM
28°
3%
6 PM
27°
3%
7 PM
26°
3%
8 PM
24°
3%
9 PM
22°
3%
7-Day Forecast
Tonight
29° 16°
Clear.
Sat
28° 16°
Clear.
Sun
26° 13°
Partly Cloudy.
Mon
24° 14°
Mostly Cloudy with a 44% chance of rain.
Tue
27° 13°
Drizzle, 51% chance.
Wed
30° 18°
Thunderstorm, 64% chance.
Thu
29° 17°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 22° Clear 3% 6 mph NW 90%
11 PM 21° Clear 14% 6 mph NW 88%
12 AM 21° Clear 14% 6 mph NW 89%
1 AM 19° Clear 3% 6 mph NW 89%
2 AM 19° Clear 3% 5 mph NW 89%
3 AM 18° Clear 3% 5 mph NW 90%
4 AM 17° Clear 3% 5 mph NW 90%
5 AM 16° Clear 3% 4 mph NW 90%
6 AM 16° Clear 3% 4 mph WNW 91%
7 AM 17° Clear 3% 5 mph WNW 89%
8 AM 19° Clear 3% 6 mph WNW 82%
9 AM 22° Clear 3% 7 mph WNW 76%
10 AM 24° Clear 5% 8 mph WNW 69%
11 AM 25° Clear 5% 10 mph WNW 64%
12 PM 26° Clear 5% 12 mph WNW 59%
1 PM 28° Clear 8% 13 mph WNW 55%
2 PM 28° Clear 16% 13 mph NW 55%
3 PM 28° Clear 16% 13 mph NW 55%
4 PM 28° Clear 3% 13 mph NW 55%
5 PM 28° Clear 3% 12 mph NW 58%
6 PM 27° Clear 3% 10 mph NW 63%
7 PM 26° Clear 3% 10 mph NW 64%
8 PM 24° Clear 3% 9 mph NW 68%
9 PM 22° Clear 3% 9 mph NW 71%
15-Day Forecast
Today
8/21
Clear
3%
16°
29°
Sat
8/22
Clear
8%
16°
28°
Sun
8/23
Partly Cloudy
3%
13°
26°
Mon
8/24
Mostly Cloudy
44%
14°
24°
Tue
8/25
Drizzle
51%
13°
27°
Wed
8/26
Thunderstorm
64%
18°
30°
Thu
8/27
Clear
8%
17°
29°
Fri
8/28
Clear
17%
17°
28°
Sat
8/29
Thunderstorm
69%
17°
31°
Sun
8/30
Drizzle
68%
20°
31°
Mon
8/31
Drizzle
60%
19°
33°
Tue
9/1
Drizzle
60%
20°
32°
Wed
9/2
Drizzle
60%
19°
30°
Thu
9/3
Drizzle
60%
19°
29°
Fri
9/4
Drizzle
60%
18°
30°
37
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
27 AQI 4.8 µg/m³
O3
Ground-level ozone
Dominant
37 AQI 40 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 37 Good 37 27
Sun 33 Good 33 27
Mon 30 Good 30 7
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 Sat Aug 22, 02:00'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
SBCAPE1352 J/kg
MLCAPE611 J/kg
MUCAPE1352 J/kg
SBCIN-152 J/kg
MLCIN-188 J/kg
Lifted Index-4.2
Kinematics
0–6 km Shear20 kt
0–1 km Shear15 kt
Eff. Shear21 kt
0–1 km SRH26
0–3 km SRH74
Eff. SRH74
Storm Motion344° @ 27 kt
0–1 km EHI0.2
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell1.1
K-Index18.4
Thermo & Levels
PWAT1.07 in
0–3 km LR4.9 °C/km
700–500 LR7.0 °C/km
Total Totals47.1
LCL962 hPa
LFC698 hPa
EL233 hPa
Freezing Lvl13,120 ft