Flood Watch 6:00 AM Flood Warning — Johnson County, IA, Louisa County, IA, Washington County, IA 3:00 PM Flood Warning — Louisa County, IA, Muscatine County, IA 6:00 PM Flood Warning — Des Moines County, IA, Louisa County, IA, Henderson County, IL, Mercer County, IL 7:00 PM Flood Warning — Louisa County, IA 3:00 AM Flood Warning — Louisa County, IA 9:00 AM

Louisa County, Iowa, United States

Last updated: 8:32 PM CDT  ·  Refresh
15°C
Feels like 13°
Partly Cloudy
▲ 18°  /  ▼ 10°
Wind
7 mph NE
Humidity
82%
Dew Point
12°
Pressure
29,60 inHg
Visibility
10 mi
UV Index
0,0
Cloud Cover
58%
Sunrise
6:52 AM
Sunset
7:02 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Louisa County is currently partly cloudy at 15°C. Dry conditions are expected through the next 24 hours. Sunrise: 6:52AM · Sunset: 7:02PM.

Alerts

Flood Watch
Expires 6:00 AM
Flood Warning
Johnson County, IA, Louisa County, IA, Washington County, IA
Expires 3:00 PM
Flood Warning
Louisa County, IA, Muscatine County, IA
Expires 6:00 PM
Flood Warning
Des Moines County, IA, Louisa County, IA, Henderson County, IL, Mercer County, IL
Expires 7:00 PM
Flood Warning
Louisa County, IA
Expires 3:00 AM
Flood Warning
Louisa County, IA
Expires 9:00 AM
19 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
15°
11%
9 PM
14°
14%
10 PM
14°
14%
11 PM
13°
7%
12 AM
13°
7%
1 AM
12°
3%
2 AM
12°
3%
3 AM
12°
3%
4 AM
12°
3%
5 AM
11°
3%
6 AM
10°
3%
7 AM
11°
3%
8 AM
12°
3%
9 AM
14°
3%
10 AM
16°
5%
11 AM
17°
5%
12 PM
18°
5%
1 PM
19°
5%
2 PM
19°
5%
3 PM
21°
5%
4 PM
21°
3%
5 PM
19°
3%
6 PM
19°
3%
7 PM
18°
3%
7-Day Forecast
Tonight
18° 10°
Partly Cloudy.
Wed
21° 10°
Partly Cloudy.
Thu
22° 11°
Mostly Cloudy.
Fri
22° 14°
Overcast with a 28% chance of rain.
Sat
19° 13°
Drizzle, 60% chance.
Sun
23° 13°
Clear with a 60% chance of rain.
Mon
22° 13°
Clear with a 52% chance of rain.
TimeTempConditionsPrecipWindHumidity
Now 15° Partly Cloudy 11% 7 mph ENE 82%
9 PM 14° Partly Cloudy 14% 7 mph NE 81%
10 PM 14° Partly Cloudy 14% 8 mph ENE 82%
11 PM 13° Partly Cloudy 7% 6 mph NE 84%
12 AM 13° Partly Cloudy 7% 6 mph NE 86%
1 AM 12° Partly Cloudy 3% 5 mph NE 86%
2 AM 12° Mostly Cloudy 3% 4 mph NE 86%
3 AM 12° Overcast 3% 4 mph NNE 86%
4 AM 12° Mostly Cloudy 3% 4 mph NNE 86%
5 AM 11° Partly Cloudy 3% 4 mph NNE 88%
6 AM 10° Partly Cloudy 3% 5 mph N 91%
7 AM 11° Partly Cloudy 3% 5 mph NNE 91%
8 AM 12° Partly Cloudy 3% 6 mph NE 86%
9 AM 14° Partly Cloudy 3% 6 mph NE 81%
10 AM 16° Partly Cloudy 5% 7 mph ENE 77%
11 AM 17° Partly Cloudy 5% 8 mph ENE 74%
12 PM 18° Mostly Cloudy 5% 8 mph ENE 70%
1 PM 19° Partly Cloudy 5% 8 mph ENE 68%
2 PM 19° Partly Cloudy 5% 8 mph ENE 68%
3 PM 21° Mostly Cloudy 5% 8 mph ENE 68%
4 PM 21° Mostly Cloudy 3% 8 mph ENE 69%
5 PM 19° Mostly Cloudy 3% 8 mph ENE 72%
6 PM 19° Partly Cloudy 3% 8 mph ENE 75%
7 PM 18° Partly Cloudy 3% 8 mph ENE 78%
15-Day Forecast
Today
9/22
Partly Cloudy
11%
10°
18°
Wed
9/23
Partly Cloudy
5%
10°
21°
Thu
9/24
Mostly Cloudy
8%
11°
22°
Fri
9/25
Overcast
28%
14°
22°
Sat
9/26
Drizzle
60%
13°
19°
Sun
9/27
Clear
60%
13°
23°
Mon
9/28
Clear
52%
13°
22°
Tue
9/29
Rain
82%
14°
24°
Wed
9/30
Rain
69%
12°
20°
Thu
10/1
Drizzle
44%
11°
20°
Fri
10/2
Drizzle
36%
9°
21°
Sat
10/3
Drizzle
60%
12°
23°
Sun
10/4
Drizzle
60%
11°
20°
Mon
10/5
Drizzle
60%
10°
20°
Tue
10/6
Drizzle
60%
11°
21°
19
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
14 AQI 2.6 µg/m³
O3
Ground-level ozone
Dominant
19 AQI 21 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 19 Good 19 14
Thu 28 Good 28 21
Fri 27 Good 27 18
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 mar. sept. 22, 23:00'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
SBCAPE0 J/kg
MLCAPE2 J/kg
MUCAPE0 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index8.7
Kinematics
0–6 km Shear14 kt
0–1 km Shear14 kt
Eff. Shear—
0–1 km SRH-34
0–3 km SRH-6
Eff. SRH—
Storm Motion33° @ 21 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index19.3
Thermo & Levels
PWAT1.09 in
0–3 km LR4.4 °C/km
700–500 LR5.3 °C/km
Total Totals33.4
LCL955 hPa
LFC1002 hPa
EL1002 hPa
Freezing Lvl10,965 ft