Yellow Advisory - Frost
7:54 a.m. EDT Friday 1 May 2026

Impact Level: Moderate

Forecast Confidence: High


Frost may damage some crops in frost-prone areas.

Patchy frost is expected again tonight as temperatures drop to near or below freezing.

Patchy frost is likely again Saturday night for some areas that remain clear.

Damage to plants, trees, and crops is possible.

Cover up plants, especially those in frost-prone areas.

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: @ 01/05/2026 10:05 - next update at 10:10  
Summary / Temperature Wind Rain Outlook
Mostly cloudy Mostly cloudy
Currently: 6.8, Max: 6.8, Min: -0.1 6.8°C
Warmer 1.2°C than last hour.

Cold

Feels like: 6°C

24-hr difference
-1.4°CColder 1.4°C than yesterday at this time.
  Today Yesterday
High: 6.8°C
09:39
12.2°C
15:27
Low: -0.1°C
00:54
0.7°C
23:59
 Wind from N N
4.3
Gust:
10.6 km/h
1 Bft - Light air
Today: 12.9 km/h 09:30
Gust Month: 12.9 km/h May 1
Rain Today: 0 mm
Rain Rate (/hr): 0 mm
Rain Yesterday: 0 mm
This Month: 0 mm
Season Total: 240.6 mm
2 days since last rain.
Tonight
Chance of showers (30%)
Chance of showers
Humidity & Barometer Almanac Moon
Humidity: 59 % Decreased 7.0% since last hour.
Dew Point: -4.3°C Decreased 0.4°C since last hour.
Barometer: 1013.92 hPa  
Baro Trend: Steady
Sunrise: 06:20
Sunset: 20:27
Moonset: 05:51
Moonrise: 20:54
Full Moon
Full Moon, Moon at 14 days in cycle
100%
Illuminated
UV Index Solar Radiation
   1.0     Low 
High: 1.0 @ 09:02
246 W/m2
High: 417 @  09:04
 EC Weather Forecast  - Outlook: Today & Tonight
Today
Chance of showers (40%)
Chance of showers

Max: 10°C
EC forecast: Mainly cloudy with 40 percent chance of showers this morning and early this afternoon. Clearing this afternoon. Wind becoming north 20 km/h gusting to 40 near noon. High 10. UV index 6 or high.
Davis VP+ forecast: Increasing clouds with little temperature change.
 
Tonight
Chance of showers (30%)
Chance of showers

Min: -1°C
EC forecast: Increasing cloudiness early this evening. 30 percent chance of showers this evening. Wind north 20 km/h gusting to 40 becoming light near midnight. Low minus 1 with frost. Wind chill minus 5 overnight.


For longer term forecast click here





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