Excessive Heat Warning — Pointe Coupee, LA, West Feliciana, LA, East Feliciana, LA, St. Helena, LA, Washington, LA, Iberville, LA, West Baton Rouge, LA, East Baton Rouge, LA, Assumption, LA, St. James, LA, St. John The Baptist, LA, Upper St. Bernard, LA, Lower St. Bernard, LA, Northern Tangipahoa, LA, Southeast St. Tammany, LA, Western Orleans, LA, Eastern Orleans, LA, Northern St. Tammany, LA, Southwestern St. Tammany, LA, Central Tangipahoa, LA, Lower Tangipahoa, LA, Northern Livingston, LA, Southern Livingston, LA, Western Ascension, LA, Eastern Ascension, LA, Upper Jefferson, LA, Upper Plaquemines, LA, Central Plaquemines, LA, Lower Plaquemines, LA, Central Jefferson, LA, Coastal Jefferson, LA, Upper Lafourche, LA, Lower Lafourche, LA, Upper Terrebonne, LA, Lower Terrebonne, LA, Upper St. Charles, LA, Central St. Charles, LA, Lower St. Charles, LA, Wilkinson, MS, Amite, MS, Pike, MS, Walthall, MS, Pearl River, MS, Northern Hancock, MS, Northern Harrison, MS, Northern Jackson, MS, Southern Hancock, MS, Southern Harrison, MS, Southern Jackson, MS 8:00 PM

Ottawa, Canada

Last updated: 10:07 PM CDT  ·  Refresh
16°C
Feels like 16°
Partly Cloudy
▲ 24°  /  ▼ 12°
Wind
2 mph SSW
Humidity
79%
Dew Point
12°
Pressure
29.90 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
56%
Sunrise
6:02 AM
Sunset
8:09 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Ottawa is currently partly cloudy at 16°C. Precipitation is likely — peak probability 72% around 10 PM. Sunrise: 6:02AM · Sunset: 8:09PM.

20 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
16°
3%
12 AM
16°
21%
1 AM
15°
14%
2 AM
14°
3%
3 AM
14°
3%
4 AM
14°
3%
5 AM
12°
3%
6 AM
13°
3%
7 AM
13°
3%
8 AM
14°
3%
9 AM
18°
8%
10 AM
19°
8%
11 AM
21°
17%
12 PM
22°
17%
1 PM
23°
17%
2 PM
24°
30%
3 PM
24°
49%
4 PM
23°
49%
5 PM
24°
53%
6 PM
23°
66%
7 PM
22°
71%
8 PM
21°
71%
9 PM
19°
72%
10 PM
19°
72%
7-Day Forecast
Tonight
24° 12°
Partly Cloudy.
Sun
24° 12°
Mostly Cloudy with a 58% chance of rain.
Mon
26° 14°
Partly Cloudy with a 34% chance of rain.
Tue
27° 13°
Partly Cloudy with a 73% chance of rain.
Wed
24° 13°
Rain, 68% chance.
Thu
23° 11°
Clear.
Fri
24° 10°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 16° Partly Cloudy 3% 2 mph SSW 79%
12 AM 16° Partly Cloudy 21% 3 mph SW 80%
1 AM 15° Partly Cloudy 14% 2 mph WSW 82%
2 AM 14° Partly Cloudy 3% 2 mph S 82%
3 AM 14° Partly Cloudy 3% 2 mph SE 83%
4 AM 14° Mostly Cloudy 3% 2 mph SE 84%
5 AM 12° Overcast 3% 2 mph SE 86%
6 AM 13° Overcast 3% 2 mph SE 85%
7 AM 13° Overcast 3% 2 mph SE 83%
8 AM 14° Mostly Cloudy 3% 2 mph SE 80%
9 AM 18° Mostly Cloudy 8% 3 mph SE 75%
10 AM 19° Mostly Cloudy 8% 5 mph SE 70%
11 AM 21° Mostly Cloudy 17% 6 mph ESE 66%
12 PM 22° Mostly Cloudy 17% 8 mph SE 62%
1 PM 23° Mostly Cloudy 17% 8 mph SE 59%
2 PM 24° Partly Cloudy 30% 8 mph SE 57%
3 PM 24° Mostly Cloudy 49% 7 mph SE 60%
4 PM 23° Overcast 49% 6 mph SE 64%
5 PM 24° Overcast 53% 6 mph ESE 68%
6 PM 23° Overcast 66% 6 mph ESE 75%
7 PM 22° Overcast 71% 6 mph ESE 82%
8 PM 21° Overcast 71% 7 mph ESE 88%
9 PM 19° Rain 72% 6 mph ESE 87%
10 PM 19° Rain 72% 6 mph ESE 86%
15-Day Forecast
Today
8/15
Partly Cloudy
3%
12°
24°
Sun
8/16
Mostly Cloudy
58%
12°
24°
Mon
8/17
Partly Cloudy
34%
14°
26°
Tue
8/18
Partly Cloudy
73%
13°
27°
Wed
8/19
Rain
68%
13°
24°
Thu
8/20
Clear
3%
11°
23°
Fri
8/21
Clear
8%
10°
24°
Sat
8/22
Clear
17%
12°
27°
Sun
8/23
Drizzle
69%
13°
26°
Mon
8/24
Drizzle
44%
12°
25°
Tue
8/25
Drizzle
60%
12°
24°
Wed
8/26
Drizzle
60%
13°
26°
Thu
8/27
Drizzle
60%
11°
23°
Fri
8/28
Clear
25%
11°
23°
Sat
8/29
Drizzle
60%
11°
24°
20
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
19 AQI 3.4 µg/m³
O3
Ground-level ozone
Dominant
20 AQI 23 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 20 Good 20 19
Mon 23 Good 20 23
Tue 36 Good 21 36
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 LCL0°C Temperature (°C) Pressure (hPa)
Temp Dewpoint Parcel (SB) CAPE CIN Dry adiabat Moist adiabat Mixing ratio
RAP
Valid Sun Aug 16, 01:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 60 70 80 90 100 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE9 J/kg
MUCAPE0 J/kg
SBCIN
MLCIN0 J/kg
Lifted Index11.7
Kinematics
0–6 km Shear32 kt
0–1 km Shear5 kt
Eff. Shear
0–1 km SRH3
0–3 km SRH19
Eff. SRH
Storm Motion2° @ 20 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)
Supercell
K-Index-7.3
Thermo & Levels
PWAT0.77 in
0–3 km LR3.5 °C/km
700–500 LR5.1 °C/km
Total Totals31.9
LCL961 hPa
LFC
EL
Freezing Lvl13,901 ft