London, Canada

Last updated: 10:46 PM CDT  ·  Refresh
9°C
Feels like 7°
Clear
▲ 17°  /  ▼ 9°
Wind
10 mph ENE
Humidity
82%
Dew Point
6°
Pressure
29.48 inHg
Visibility
10 mi
UV Index
0.0
Cloud Cover
7%
Sunrise
7:12 AM
Sunset
7:22 PM
Drag to pan · double-click to forecast a point
WeatherAI™ Analysis

WeatherAI Analysis: London is currently clear at 10°C. Dry conditions are expected through the next 24 hours. Sunrise: 7:12AM · Sunset: 7:22PM.

Alerts

No active alerts for this location.
29 AQI · Good Dominant: O3 Air Quality
Hourly Forecast · Next 24 Hours
Now
9°
3%
12 AM
10°
3%
1 AM
10°
3%
2 AM
10°
3%
3 AM
10°
3%
4 AM
10°
3%
5 AM
10°
3%
6 AM
10°
3%
7 AM
11°
3%
8 AM
12°
3%
9 AM
14°
3%
10 AM
16°
3%
11 AM
17°
3%
12 PM
18°
3%
1 PM
19°
3%
2 PM
20°
3%
3 PM
20°
3%
4 PM
20°
3%
5 PM
20°
3%
6 PM
18°
3%
7 PM
17°
3%
8 PM
17°
3%
9 PM
16°
3%
10 PM
15°
3%
7-Day Forecast
Tonight
17° 9°
Clear.
Wed
21° 9°
Mostly Clear.
Thu
22° 8°
Clear.
Fri
24° 4°
Clear.
Sat
26° 9°
Mostly Clear.
Sun
27° 11°
Clear.
Mon
23° 11°
Clear.
TimeTempConditionsPrecipWindHumidity
Now 9° Clear 3% 10 mph ENE 82%
12 AM 10° Clear 3% 10 mph ENE 81%
1 AM 10° Clear 3% 10 mph ENE 84%
2 AM 10° Clear 3% 10 mph ENE 86%
3 AM 10° Clear 3% 10 mph ENE 88%
4 AM 10° Partly Cloudy 3% 11 mph ENE 90%
5 AM 10° Partly Cloudy 3% 11 mph ENE 90%
6 AM 10° Mostly Cloudy 3% 12 mph ENE 90%
7 AM 11° Partly Cloudy 3% 12 mph ENE 89%
8 AM 12° Partly Cloudy 3% 13 mph ENE 80%
9 AM 14° Partly Cloudy 3% 13 mph E 71%
10 AM 16° Partly Cloudy 3% 14 mph E 61%
11 AM 17° Mostly Cloudy 3% 14 mph E 54%
12 PM 18° Mostly Cloudy 3% 15 mph E 49%
1 PM 19° Partly Cloudy 3% 15 mph E 44%
2 PM 20° Clear 3% 15 mph E 42%
3 PM 20° Clear 3% 15 mph E 41%
4 PM 20° Clear 3% 15 mph E 42%
5 PM 20° Clear 3% 15 mph ENE 53%
6 PM 18° Clear 3% 14 mph ENE 62%
7 PM 17° Clear 3% 14 mph ENE 68%
8 PM 17° Clear 3% 13 mph ENE 70%
9 PM 16° Clear 3% 14 mph ENE 70%
10 PM 15° Mostly Clear 3% 14 mph ENE 72%
15-Day Forecast
Today
9/22
Clear
3%
9°
17°
Wed
9/23
Mostly Clear
3%
9°
21°
Thu
9/24
Clear
3%
8°
22°
Fri
9/25
Clear
3%
4°
24°
Sat
9/26
Mostly Clear
3%
9°
26°
Sun
9/27
Clear
3%
11°
27°
Mon
9/28
Clear
3%
11°
23°
Tue
9/29
Clear
17%
12°
26°
Wed
9/30
Drizzle
44%
13°
28°
Thu
10/1
Rain
68%
12°
23°
Fri
10/2
Drizzle
60%
12°
21°
Sat
10/3
Drizzle
60%
13°
23°
Sun
10/4
Drizzle
60%
12°
21°
Mon
10/5
Drizzle
60%
9°
19°
Tue
10/6
Drizzle
60%
9°
19°
29
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
29 AQI 31 ppb
3-Day Outlook
DayAQICategoryO₃PM2.5
Today 29 Good 29 14
Thu 30 Good 30 18
Fri 31 Good 31 11
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 Wed Sep 23, 02:00'Z' · F0 · 130 (13 km CONUS/NA)
Hodograph · kt
10 20 30 40 SM
0–1 1–3 3–6 6–9 km
Instability
SBCAPE0 J/kg
MLCAPE15 J/kg
MUCAPE0 J/kg
SBCIN—
MLCIN0 J/kg
Lifted Index16.2
Kinematics
0–6 km Shear16 kt
0–1 km Shear18 kt
Eff. Shear—
0–1 km SRH-44
0–3 km SRH-20
Eff. SRH—
Storm Motion29° @ 19 kt
0–1 km EHI-0.0
Composite Parameters
Sig. Tornado0.0
STP (eff)—
Supercell—
K-Index-19.9
Thermo & Levels
PWAT0.37 in
0–3 km LR2.5 °C/km
700–500 LR6.1 °C/km
Total Totals24.9
LCL945 hPa
LFC—
EL—
Freezing Lvl11,007 ft