FPCN11 CWTO 190845
ISSUED BY EC at 5:00 A.M. EDT TUESDAY 19 AUG 2025.

Sarnia - Petrolia - Western Lambton County

Today..cloudy. A few showers beginning this morning. Risk of a thunderstorm. Local amount 10 to 15 mm. High 24.

Tonight..cloudy. 70 percent chance of showers changing to 30 percent chance of showers or drizzle late this evening. Risk of a thunderstorm this evening. Wind becoming north 20 km/h before morning. Low 19.

Wednesday..cloudy. 30 percent chance of showers or drizzle early in the morning. Wind north 20 km/h gusting to 40. High 26.

Watford - Pinery Park - Eastern Lambton County

Today..mainly cloudy. A few showers beginning this morning. Risk of a thunderstorm. Local amount 10 to 15 mm. High 24.

Tonight..cloudy. 70 percent chance of showers changing to 30 percent chance of showers or drizzle late this evening. Risk of a thunderstorm this evening. Low 19.

Wednesday..cloudy. 30 percent chance of showers or drizzle early in the morning. Wind becoming northeast 20 km/h late in the morning. High 26.

Extended 3-7 day forecast.

Past 0-2 day forecasts
Sun Aug 17 08:46 UTC
Sun Aug 17 08:56 UTC
Sun Aug 17 14:48 UTC
Sun Aug 17 19:15 UTC
Mon Aug 18 08:46 UTC
Mon Aug 18 11:52 UTC
Mon Aug 18 14:45 UTC
Mon Aug 18 19:15 UTC
Tue Aug 19 08:45 UTC (current forecast)

Past 3-7 day forecasts
Sun Aug 17 08:54 UTC
Sun Aug 17 14:20 UTC
Sun Aug 17 18:50 UTC
Mon Aug 18 08:54 UTC
Mon Aug 18 14:20 UTC
Mon Aug 18 19:24 UTC
Tue Aug 19 08:20 UTC (current forecast)