Severe Thunderstorm Watch 12:00 AM

Clinton County, Iowa, United States

Last updated: 10:09 PM CDT  ·  Refresh
21°C
Feels like 22°
Clear
▲ 29°  /  ▼ 15°
Wind
5 mph NW
Humidity
90%
Dew Point
19°
Pressure
29.17 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
9%
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 clear at 21°C. Dry conditions are expected through the next 24 hours. Atmospheric instability is elevated (CAPE up to 1087 J/kg) — isolated convective development possible. Sunrise: 6:16AM · Sunset: 7:53PM.

Alerts

Severe Thunderstorm Watch
Expires 12:00 AM
35 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
21°
3%
11 PM
20°
14%
12 AM
19°
14%
1 AM
19°
3%
2 AM
18°
3%
3 AM
17°
3%
4 AM
17°
3%
5 AM
16°
3%
6 AM
15°
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
27°
3%
5 PM
27°
3%
6 PM
26°
3%
7 PM
26°
3%
8 PM
24°
3%
9 PM
21°
3%
7-Day Forecast
Tonight
29° 15°
Clear.
Sat
27° 15°
Clear.
Sun
26° 12°
Mostly Clear.
Mon
23° 12°
Overcast with a 44% chance of rain.
Tue
27° 13°
Drizzle, 51% chance.
Wed
29° 17°
Rain, 64% chance.
Thu
28° 16°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 21° Clear 3% 5 mph NW 90%
11 PM 20° Clear 14% 7 mph NW 88%
12 AM 19° Clear 14% 8 mph NW 88%
1 AM 19° Clear 3% 7 mph NW 89%
2 AM 18° Clear 3% 7 mph NNW 89%
3 AM 17° Clear 3% 7 mph NNW 90%
4 AM 17° Clear 3% 6 mph NNW 90%
5 AM 16° Clear 3% 6 mph NW 90%
6 AM 15° Clear 3% 5 mph NW 90%
7 AM 16° Clear 3% 5 mph NW 89%
8 AM 18° Clear 3% 6 mph NW 83%
9 AM 21° Clear 3% 7 mph WNW 77%
10 AM 23° Clear 5% 9 mph WNW 72%
11 AM 24° Clear 15% 11 mph NW 67%
12 PM 25° Clear 15% 12 mph NW 63%
1 PM 27° Clear 16% 14 mph NW 59%
2 PM 27° Clear 16% 14 mph NW 58%
3 PM 27° Clear 5% 14 mph NW 55%
4 PM 27° Clear 3% 14 mph NW 54%
5 PM 27° Clear 3% 13 mph NW 58%
6 PM 26° Mostly Clear 3% 11 mph NW 62%
7 PM 26° Mostly Clear 3% 11 mph NW 63%
8 PM 24° Mostly Clear 3% 11 mph NW 66%
9 PM 21° Clear 3% 9 mph NW 68%
15-Day Forecast
Today
8/21
Clear
3%
15°
29°
Sat
8/22
Clear
16%
15°
27°
Sun
8/23
Mostly Clear
3%
12°
26°
Mon
8/24
Overcast
44%
12°
23°
Tue
8/25
Drizzle
51%
13°
27°
Wed
8/26
Rain
64%
17°
29°
Thu
8/27
Clear
17%
16°
28°
Fri
8/28
Clear
22%
16°
28°
Sat
8/29
Thunderstorm
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 Sat Aug 22, 01:00'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
SBCAPE643 J/kg
MLCAPE474 J/kg
MUCAPE1159 J/kg
SBCIN-289 J/kg
MLCIN-205 J/kg
Lifted Index-1.8
Kinematics
0–6 km Shear21 kt
0–1 km Shear16 kt
Eff. Shear9 kt
0–1 km SRH36
0–3 km SRH73
Eff. SRH47
Storm Motion345° @ 25 kt
0–1 km EHI0.1
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index11.3
Thermo & Levels
PWAT1.04 in
0–3 km LR4.4 °C/km
700–500 LR6.9 °C/km
Total Totals45.6
LCL966 hPa
LFC644 hPa
EL247 hPa
Freezing Lvl12,972 ft