Heat Advisory — Williams, ND, Mountrail, ND, McKenzie, ND, Dunn, ND, Mercer, ND, Oliver, ND, Golden Valley, ND, Billings, ND, Stark, ND, Burleigh, ND, Hettinger, ND, Grant, ND, Emmons, ND, Western McLean, ND, Eastern McLean, ND, Western Morton, ND, Eastern Morton, ND, Western Sioux, ND, Eastern Sioux, ND, McHenry, ND, Pierce, ND, Sheridan, ND, Wells, ND, Foster, ND, Kidder, ND, Stutsman, ND, Adams, ND, Logan, ND, La Moure, ND, McIntosh, ND, Dickey, ND, Central and Southern Ward/Minot Area, ND 8:00 PM

Ottawa, Canada

Last updated: 5:17 PM CDT  ·  Refresh
21°C
Feels like 22°
Mostly Cloudy
▲ 22°  /  ▼ 17°
Wind
7 mph NNW
Humidity
91%
Dew Point
18°
Pressure
29.44 inHg
Visibility
10 mi
UV Index
3.0
Cloud Cover
80%
Sunrise
5:44 AM
Sunset
8:34 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: Ottawa is currently mostly cloudy at 21°C. Precipitation is likely — peak probability 82% around 9 PM. Atmospheric instability is elevated (CAPE up to 696 J/kg) — isolated convective development possible. Sunrise: 5:44AM · Sunset: 8:34PM.

Alerts

Heat Advisory
Williams, ND, Mountrail, ND, McKenzie, ND, Dunn, ND, Mercer, ND, Oliver, ND, Golden Valley, ND, Billings, ND, Stark, ND, Burleigh, ND, Hettinger, ND, Grant, ND, Emmons, ND, Western McLean, ND, Eastern McLean, ND, Western Morton, ND, Eastern Morton, ND, Western Sioux, ND, Eastern Sioux, ND, McHenry, ND, Pierce, ND, Sheridan, ND, Wells, ND, Foster, ND, Kidder, ND, Stutsman, ND, Adams, ND, Logan, ND, La Moure, ND, McIntosh, ND, Dickey, ND, Central and Southern Ward/Minot Area, ND
Expires 8:00 PM
47 AQI · Good Dominant: PM2.5 Air Quality
Hourly Forecast · Next 24 Hours
Now
21°
59%
7 PM
22°
66%
8 PM
22°
67%
9 PM
21°
81%
10 PM
21°
80%
11 PM
21°
48%
12 AM
21°
50%
1 AM
20°
57%
2 AM
19°
51%
3 AM
19°
51%
4 AM
19°
41%
5 AM
17°
38%
6 AM
18°
51%
7 AM
18°
47%
8 AM
19°
48%
9 AM
20°
39%
10 AM
21°
39%
11 AM
22°
46%
12 PM
22°
50%
1 PM
24°
56%
2 PM
24°
56%
3 PM
24°
56%
4 PM
24°
51%
5 PM
26°
44%
7-Day Forecast
Tonight
22° 17°
Mostly Cloudy with a 81% chance of rain.
Thu
26° 17°
Partly Cloudy with a 51% chance of rain.
Fri
29° 16°
Fog with a 30% chance of rain.
Sat
27° 18°
Heavy Rain, 83% chance.
Sun
26° 16°
Rain, 82% chance.
Mon
27° 14°
Clear with a 64% chance of rain.
Tue
29° 14°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 21° Mostly Cloudy 59% 7 mph NNW 91%
7 PM 22° Mostly Cloudy 66% 6 mph N 92%
8 PM 22° Overcast 67% 5 mph NNW 94%
9 PM 21° Heavy Rain 81% 4 mph N 95%
10 PM 21° Overcast 80% 4 mph N 96%
11 PM 21° Overcast 48% 4 mph N 96%
12 AM 21° Mostly Cloudy 50% 4 mph N 96%
1 AM 20° Mostly Cloudy 57% 4 mph N 96%
2 AM 19° Partly Cloudy 51% 5 mph N 96%
3 AM 19° Partly Cloudy 51% 4 mph N 96%
4 AM 19° Mostly Cloudy 41% 4 mph N 96%
5 AM 17° Mostly Cloudy 38% 4 mph N 96%
6 AM 18° Mostly Cloudy 51% 4 mph N 95%
7 AM 18° Mostly Cloudy 47% 4 mph N 94%
8 AM 19° Mostly Cloudy 48% 5 mph N 92%
9 AM 20° Partly Cloudy 39% 5 mph N 87%
10 AM 21° Partly Cloudy 39% 6 mph N 82%
11 AM 22° Partly Cloudy 46% 6 mph N 78%
12 PM 22° Partly Cloudy 50% 6 mph N 75%
1 PM 24° Partly Cloudy 56% 6 mph N 72%
2 PM 24° Partly Cloudy 56% 6 mph N 71%
3 PM 24° Partly Cloudy 56% 6 mph N 72%
4 PM 24° Partly Cloudy 51% 6 mph N 72%
5 PM 26° Mostly Clear 44% 5 mph N 74%
15-Day Forecast
Today
7/29
Mostly Cloudy
81%
17°
22°
Thu
7/30
Partly Cloudy
51%
17°
26°
Fri
7/31
Fog
30%
16°
29°
Sat
8/1
Heavy Rain
83%
18°
27°
Sun
8/2
Rain
82%
16°
26°
Mon
8/3
Clear
64%
14°
27°
Tue
8/4
Clear
17%
14°
29°
Wed
8/5
Mostly Clear
17%
16°
31°
Thu
8/6
Drizzle
60%
18°
30°
Fri
8/7
Drizzle
60%
17°
28°
Sat
8/8
Drizzle
51%
16°
28°
Sun
8/9
Drizzle
60%
14°
27°
Mon
8/10
Drizzle
60%
14°
26°
Tue
8/11
Drizzle
60%
13°
25°
Wed
8/12
Drizzle
60%
13°
24°
47
Good
U.S. Air Quality Index · Dominant: PM2.5
50 100 150 200

Air quality is satisfactory and poses little or no health risk.

Pollutant Breakdown · Today
PM2.5
Fine particulate matter
Dominant
47 AQI 8.6 µg/m³
O3
Ground-level ozone
24 AQI 27 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Thu 47 Good 24 47
Fri 47 Good 42 47
Sat 50 Good 32 50
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 Wed Jul 29, 21:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE165 J/kg
MLCAPE109 J/kg
MUCAPE165 J/kg
SBCIN-17 J/kg
MLCIN0 J/kg
Lifted Index-0.3
Kinematics
0–6 km Shear9 kt
0–1 km Shear12 kt
Eff. Shear11 kt
0–1 km SRH-38
0–3 km SRH-33
Eff. SRH-33
Storm Motion337° @ 23 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)0.0
Supercell0.0
K-Index33.1
Thermo & Levels
PWAT1.78 in
0–3 km LR5.8 °C/km
700–500 LR5.1 °C/km
Total Totals44.0
LCL961 hPa
LFC905 hPa
EL407 hPa
Freezing Lvl12,572 ft