Heat Advisory — 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 7:00 PM

Ottawa, Canada

Last updated: 10:57 AM CDT  ·  Refresh
24°C
Feels like 23°
Rain
▲ 26°  /  ▼ 14°
Wind
12 mph SSE
Humidity
72%
Dew Point
17°
Pressure
29.34 inHg
Visibility
10 mi
UV Index
4.5
Cloud Cover
88%
Sunrise
5:34 AM
Sunset
8:42 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Ottawa is currently rain at 24°C. Precipitation is likely — peak probability 90% around 11 AM. Atmospheric instability is elevated (CAPE up to 762 J/kg) — isolated convective development possible. Sunrise: 5:34AM · Sunset: 8:42PM.

70 AQI · Moderate Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
24°
90%
12 PM
24°
90%
1 PM
26°
83%
2 PM
24°
90%
3 PM
23°
90%
4 PM
23°
84%
5 PM
24°
79%
6 PM
24°
60%
7 PM
24°
49%
8 PM
23°
73%
9 PM
22°
70%
10 PM
22°
53%
11 PM
21°
57%
12 AM
21°
58%
1 AM
20°
55%
2 AM
19°
55%
3 AM
19°
56%
4 AM
18°
37%
5 AM
16°
28%
6 AM
16°
15%
7 AM
16°
9%
8 AM
16°
9%
9 AM
17°
9%
10 AM
18°
9%
7-Day Forecast
Today
26° 14°
Rain, 90% chance.
Wed
22° 11°
Overcast with a 55% chance of rain.
Thu
27° 10°
Mostly Clear.
Fri
28° 12°
Mostly Clear.
Sat
31° 12°
Clear.
Sun
31° 16°
Rain, 78% chance.
Mon
32° 15°
Rain, 71% chance.
TimeTempConditionsPrecipWindHumidity
Now 24° Rain 90% 12 mph SSE 72%
12 PM 24° Overcast 90% 12 mph S 68%
1 PM 26° Overcast 83% 13 mph S 67%
2 PM 24° Heavy Rain 90% 12 mph SSW 73%
3 PM 23° Heavy Rain 90% 12 mph SSW 78%
4 PM 23° Heavy Rain 84% 12 mph S 83%
5 PM 24° Overcast 79% 10 mph S 89%
6 PM 24° Partly Cloudy 60% 9 mph S 89%
7 PM 24° Mostly Cloudy 49% 8 mph S 89%
8 PM 23° Rain 73% 7 mph S 91%
9 PM 22° Mostly Cloudy 70% 8 mph S 93%
10 PM 22° Mostly Cloudy 53% 8 mph S 95%
11 PM 21° Overcast 57% 8 mph S 96%
12 AM 21° Rain 58% 6 mph SSW 97%
1 AM 20° Rain 55% 5 mph SSW 97%
2 AM 19° Rain 55% 6 mph SW 96%
3 AM 19° Overcast 56% 7 mph WSW 94%
4 AM 18° Overcast 37% 9 mph WSW 93%
5 AM 16° Overcast 28% 9 mph W 90%
6 AM 16° Mostly Cloudy 15% 9 mph W 87%
7 AM 16° Mostly Cloudy 9% 9 mph W 85%
8 AM 16° Overcast 9% 10 mph W 82%
9 AM 17° Overcast 9% 10 mph WSW 80%
10 AM 18° Overcast 9% 10 mph WSW 77%
15-Day Forecast
Today
7/21
Rain
90%
14°
26°
Wed
7/22
Overcast
55%
11°
22°
Thu
7/23
Mostly Clear
3%
10°
27°
Fri
7/24
Mostly Clear
3%
12°
28°
Sat
7/25
Clear
16%
12°
31°
Sun
7/26
Rain
78%
16°
31°
Mon
7/27
Rain
71%
15°
32°
Tue
7/28
Rain
69%
14°
24°
Wed
7/29
Rain
68%
13°
24°
Thu
7/30
Drizzle
51%
13°
27°
Fri
7/31
Drizzle
60%
14°
28°
Sat
8/1
Drizzle
60%
14°
28°
Sun
8/2
Drizzle
60%
14°
28°
Mon
8/3
Drizzle
60%
15°
29°
Tue
8/4
Drizzle
60%
14°
29°
70
Moderate
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
70 AQI 19.6 µg/m³
O3
Ground-level ozone
48 AQI 52 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Wed 70 Moderate 48 70
Thu 27 Good 27 26
Fri 47 Good 32 47
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 Tue Jul 21, 14:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 50 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE360 J/kg
MLCAPE93 J/kg
MUCAPE360 J/kg
SBCIN0 J/kg
MLCIN0 J/kg
Lifted Index-2.1
Kinematics
0–6 km Shear38 kt
0–1 km Shear20 kt
Eff. Shear30 kt
0–1 km SRH18
0–3 km SRH-35
Eff. SRH-35
Storm Motion194° @ 42 kt
0–1 km EHI0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index28.2
Thermo & Levels
PWAT1.38 in
0–3 km LR6.8 °C/km
700–500 LR5.6 °C/km
Total Totals42.2
LCL903 hPa
LFC993 hPa
EL398 hPa
Freezing Lvl11,588 ft