Yellow Warning - Rainfall
5:20 p.m. EDT Saturday 4 April 2026

Impact Level: Moderate

Forecast Confidence: High


Heavy rain expected today.

What:
Rainfall amounts of 20 to 40 mm.
The ground may have little ability to absorb further moisture due to recent rainfall events.

When:
This evening.

Additional Information:
Much of the region has seen a break in rainfall through this afternoon, however a line of heavy showers and possible thunderstorms is expected to track through this evening. The heaviest rain will occur in areas that receive thunderstorms.

For information concerning flooding, please consult your local Conservation Authority or Ontario Ministry of Natural Resources office. Visit Ontario.ca/floods for the latest details.

Water will likely pool on roads and in low-lying areas. Visibility will likely be suddenly reduced at times.

Avoid low-lying areas. Watch for washouts near rivers, creeks and culverts.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@ec.gc.ca or post reports on X using #ONStorm.

In effect for:
  • London - Parkhill - Eastern Middlesex County

CLICK for Environment Canada Ontario South Alerts
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Updated: @ 04/04/2026 20:35 - next update at 20:40  
Summary / Temperature Wind Rain Outlook
Light rain, Showers, Overcast Light rain, Showers, Overcast
Currently: 13.3, Max: 17.7, Min: 3.3 13.3°C
Colder 0.7°C than last hour.

Cool

Feels like: 13°C

24-hr difference
5.9°CWarmer 5.9°C than yesterday at this time.
  Today Yesterday
High: 17.7°C
15:32
23.6°C
14:16
Low: 3.3°C
09:31
4.7°C
23:57
 Wind from N N
6.4
Gust:
23.5 km/h
1 Bft - Light air
Today: 34.2 km/h 08:37
Gust Month: 60.0 km/h April 3
Rain Today: 18.4 mm
Rain Rate (/hr): 1.2 mm
Rain Yesterday: 3.2 mm
This Month: 23.6 mm
Season Total: 174.8 mm
0 day since last rain.
Sun, 5 Apr
Chance of showers (60%)
Chance of showers
Humidity & Barometer Almanac Moon
Humidity: 65 % Decreased 2.0% since last hour.
Dew Point: 2.8°C Decreased 1.0°C since last hour.
Barometer: 1007.72 hPa Falling 0.3  hPa/hr
Baro Trend: Falling slowly
Sunrise: 07:02
Sunset: 19:56
Moonset: 07:48
Moonrise: 23:06
Waning Gibbous
Waning Gibbous, Moon at 17 days in cycle
93%
Illuminated
UV Index Solar Radiation
   0.0    None
High: 4.6 @ 13:10
0 W/m2
High: 923 @  13:21
 EC Weather Forecast  - Outlook: Tonight & Sun, 5 Apr
Tonight
Showers
Showers

Min: 4°C
EC forecast: Showers ending overnight then cloudy with 40 percent chance of showers. Risk of a thunderstorm this evening and after midnight. Amount 15 to 25 mm. Wind west 30 km/h gusting to 50. Low plus 4.
Davis VP+ forecast: Mostly cloudy and cooler. Precipitation continuing. Windy with possible wind shift to the W, NW, or N.
 
Sun, 5 Apr
Chance of showers (60%)
Chance of showers

Max: 4°C
EC forecast: Cloudy with 60 percent chance of showers. Wind west 30 km/h gusting to 50. High plus 4. UV index 2 or low.


For longer term forecast click here





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