Severe Thunderstorm Watch 10:00 PM

Clinton County, Iowa, United States

Last updated: 9:10 PM CDT  ·  Refresh
22°C
Feels like 24°
Mostly Clear
▲ 29°  /  ▼ 16°
Wind
7 mph NW
Humidity
89%
Dew Point
20°
Pressure
29.16 inHg
Visibility
3 mi
UV Index
0.0
Cloud Cover
29%
Sunrise
6:16 AM
Sunset
7:53 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Clinton County is currently mostly clear at 22°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1232 J/kg) — isolated convective development possible. Sunrise: 6:16AM · Sunset: 7:53PM.

Alerts

Severe Thunderstorm Watch
Expires 10:00 PM
35 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
22°
15%
10 PM
21°
14%
11 PM
20°
14%
12 AM
19°
14%
1 AM
18°
3%
2 AM
18°
3%
3 AM
17°
3%
4 AM
17°
3%
5 AM
16°
3%
6 AM
16°
3%
7 AM
16°
3%
8 AM
18°
3%
9 AM
21°
3%
10 AM
23°
5%
11 AM
24°
15%
12 PM
25°
15%
1 PM
27°
16%
2 PM
27°
16%
3 PM
27°
5%
4 PM
28°
3%
5 PM
27°
3%
6 PM
26°
3%
7 PM
26°
3%
8 PM
24°
3%
7-Day Forecast
Tonight
29° 16°
Mostly Clear.
Sat
28° 15°
Clear.
Sun
26° 12°
Mostly Clear.
Mon
23° 12°
Overcast with a 44% chance of rain.
Tue
27° 13°
Clear with a 51% chance of rain.
Wed
29° 17°
Clear with a 51% chance of rain.
Thu
28° 16°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 22° Mostly Clear 15% 7 mph NW 89%
10 PM 21° Clear 14% 7 mph NW 88%
11 PM 20° Clear 14% 8 mph NW 88%
12 AM 19° Clear 14% 8 mph NNW 88%
1 AM 18° Clear 3% 7 mph NNW 88%
2 AM 18° Clear 3% 7 mph NNW 89%
3 AM 17° Clear 3% 6 mph NNW 89%
4 AM 17° Clear 3% 6 mph NNW 89%
5 AM 16° Clear 3% 6 mph NW 90%
6 AM 16° Clear 3% 5 mph NW 90%
7 AM 16° Clear 3% 6 mph NW 89%
8 AM 18° Clear 3% 6 mph NW 83%
9 AM 21° Clear 3% 8 mph NW 76%
10 AM 23° Clear 5% 9 mph NW 70%
11 AM 24° Clear 15% 11 mph NW 65%
12 PM 25° Clear 15% 12 mph NW 61%
1 PM 27° Clear 16% 14 mph NW 57%
2 PM 27° Clear 16% 14 mph NW 57%
3 PM 27° Clear 5% 14 mph NW 54%
4 PM 28° Clear 3% 13 mph NW 54%
5 PM 27° Clear 3% 12 mph NW 58%
6 PM 26° Mostly Clear 3% 10 mph NW 63%
7 PM 26° Mostly Clear 3% 10 mph NW 64%
8 PM 24° Mostly Clear 3% 9 mph NW 67%
15-Day Forecast
Today
8/21
Mostly Clear
15%
16°
29°
Sat
8/22
Clear
15%
15°
28°
Sun
8/23
Mostly Clear
3%
12°
26°
Mon
8/24
Overcast
44%
12°
23°
Tue
8/25
Clear
51%
13°
27°
Wed
8/26
Clear
51%
17°
29°
Thu
8/27
Clear
17%
16°
28°
Fri
8/28
Clear
31%
16°
28°
Sat
8/29
Drizzle
68%
16°
30°
Sun
8/30
Rain
68%
19°
31°
Mon
8/31
Drizzle
60%
18°
32°
Tue
9/1
Drizzle
60%
19°
31°
Wed
9/2
Drizzle
60%
18°
29°
Thu
9/3
Drizzle
60%
17°
27°
Fri
9/4
Drizzle
60%
17°
28°
35
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
28 AQI 5.1 µg/m³
O3
Ground-level ozone
Dominant
35 AQI 38 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 35 Good 35 28
Sun 28 Good 28 24
Mon 24 Good 24 6
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 Aug 21, 23:00'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
SBCAPE1501 J/kg
MLCAPE1648 J/kg
MUCAPE2341 J/kg
SBCIN-175 J/kg
MLCIN-62 J/kg
Lifted Index-3.9
Kinematics
0–6 km Shear19 kt
0–1 km Shear16 kt
Eff. Shear19 kt
0–1 km SRH43
0–3 km SRH69
Eff. SRH69
Storm Motion343° @ 24 kt
0–1 km EHI0.4
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index24.0
Thermo & Levels
PWAT1.43 in
0–3 km LR5.3 °C/km
700–500 LR6.3 °C/km
Total Totals51.3
LCL962 hPa
LFC820 hPa
EL226 hPa
Freezing Lvl12,858 ft