FPCN11 CWTO 131607 AAA UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA AT 12:05 P.M. EDT FRIDAY 13 MARCH 2026 FOR TODAY AND SATURDAY. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 3:30 P.M. EDT. ST. THOMAS - AYLMER - EASTERN ELGIN COUNTY. TODAY..SNOW ENDING THIS AFTERNOON THEN CLOUDY WITH 60 PERCENT CHANCE OF RAIN SHOWERS OR WET FLURRIES. SNOWFALL AMOUNT 5 CM. WIND SOUTH 40 KM/H GUSTING TO 60 BECOMING WEST 50 GUSTING TO 70 LATE THIS AFTERNOON. HIGH PLUS 3. UV INDEX 2 OR LOW. TONIGHT..CLOUDY. 60 PERCENT CHANCE OF RAIN SHOWERS CHANGING TO 60 PERCENT CHANCE OF FLURRIES THIS EVENING. WIND WEST 50 KM/H GUSTING TO 80 BECOMING NORTHWEST 20 GUSTING TO 40 OVERNIGHT. LOW MINUS 4. WIND CHILL MINUS 9 OVERNIGHT. SATURDAY..CLEARING IN THE MORNING. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE AFTERNOON. HIGH PLUS 2. WIND CHILL MINUS 10 IN THE MORNING. UV INDEX 3 OR MODERATE. LONDON - PARKHILL - EASTERN MIDDLESEX COUNTY. TODAY..SNOW CHANGING TO A FEW RAIN SHOWERS OR WET FLURRIES THIS AFTERNOON. SNOWFALL AMOUNT 5 CM. WIND SOUTH 40 KM/H GUSTING TO 60 BECOMING WEST 50 GUSTING TO 70 LATE THIS AFTERNOON. HIGH PLUS 2. UV INDEX 1 OR LOW. TONIGHT..A FEW RAIN SHOWERS OR WET FLURRIES CHANGING TO A FEW FLURRIES AND ENDING NEAR MIDNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. WIND WEST 50 KM/H GUSTING TO 80 BECOMING NORTHWEST 20 GUSTING TO 40 OVERNIGHT. LOW MINUS 3. WIND CHILL MINUS 10 OVERNIGHT. SATURDAY..CLEARING LATE IN THE MORNING. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE AFTERNOON. HIGH ZERO. WIND CHILL MINUS 9 IN THE MORNING. UV INDEX 3 OR MODERATE. SIMCOE - DELHI - NORFOLK. TODAY..SNOW CHANGING TO A FEW RAIN SHOWERS OR WET FLURRIES THIS AFTERNOON. SNOWFALL AMOUNT 5 CM. WIND SOUTH 40 KM/H GUSTING TO 60 BECOMING WEST 50 GUSTING TO 70 LATE THIS AFTERNOON. HIGH PLUS 3. UV INDEX 1 OR LOW. TONIGHT..A FEW RAIN SHOWERS OR WET FLURRIES ENDING THIS EVENING THEN CLOUDY WITH 60 PERCENT CHANCE OF FLURRIES. WIND WEST 50 KM/H GUSTING TO 80 BECOMING NORTHWEST 20 GUSTING TO 40 OVERNIGHT. LOW MINUS 1. WIND CHILL MINUS 7 OVERNIGHT. SATURDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES IN THE MORNING. CLEARING IN THE AFTERNOON. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE AFTERNOON. HIGH PLUS 2. WIND CHILL MINUS 7 IN THE MORNING. UV INDEX 3 OR MODERATE. DUNNVILLE - CALEDONIA - HALDIMAND. TODAY..SNOW CHANGING TO A FEW RAIN SHOWERS OR WET FLURRIES THIS AFTERNOON. SNOWFALL AMOUNT 5 CM. WIND SOUTHEAST 30 KM/H GUSTING TO 50. HIGH PLUS 3. UV INDEX 1 OR LOW. TONIGHT..A FEW RAIN SHOWERS OR WET FLURRIES ENDING THIS EVENING THEN CLOUDY WITH 60 PERCENT CHANCE OF FLURRIES. WIND SOUTHWEST 50 KM/H GUSTING TO 80. LOW MINUS 3. WIND CHILL MINUS 10 OVERNIGHT. SATURDAY..CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES IN THE MORNING. CLEARING IN THE AFTERNOON. WIND NORTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT IN THE AFTERNOON. HIGH PLUS 3. WIND CHILL MINUS 10 IN THE MORNING. UV INDEX 3 OR MODERATE. WOODSTOCK - TILLSONBURG - OXFORD COUNTY. TODAY..SNOW CHANGING TO A FEW RAIN SHOWERS OR WET FLURRIES THIS AFTERNOON. SNOWFALL AMOUNT 5 CM. WIND SOUTHEAST 20 KM/H BECOMING SOUTH 40 GUSTING TO 60 THIS AFTERNOON THEN WEST 50 GUSTING TO 70. HIGH PLUS 3. UV INDEX 1 OR LOW. TONIGHT..A FEW RAIN SHOWERS OR WET FLURRIES CHANGING TO A FEW FLURRIES THIS EVENING AND ENDING OVERNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. LOCAL BLOWING SNOW OVERNIGHT. WIND WEST 50 KM/H GUSTING TO 70. LOW MINUS 4. WIND CHILL MINUS 11 OVERNIGHT. SATURDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF FLURRIES EARLY IN THE MORNING. CLEARING IN THE AFTERNOON. WIND NORTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT IN THE AFTERNOON. HIGH ZERO. WIND CHILL MINUS 12 IN THE MORNING. UV INDEX 4 OR MODERATE. BRANTFORD - COUNTY OF BRANT. TODAY..SNOW CHANGING TO A FEW RAIN SHOWERS OR WET FLURRIES THIS AFTERNOON. SNOWFALL AMOUNT 5 CM. WIND SOUTHEAST 20 KM/H BECOMING SOUTH 40 GUSTING TO 60 THIS AFTERNOON THEN WEST 50 GUSTING TO 70. HIGH PLUS 3. UV INDEX 1 OR LOW. TONIGHT..A FEW RAIN SHOWERS OR WET FLURRIES CHANGING TO A FEW FLURRIES THIS EVENING AND ENDING OVERNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. LOCAL BLOWING SNOW OVERNIGHT. WIND WEST 50 KM/H GUSTING TO 70. LOW MINUS 3. WIND CHILL MINUS 10 OVERNIGHT. SATURDAY..CLOUDY. 30 PERCENT CHANCE OF FLURRIES EARLY IN THE MORNING. CLEARING NEAR NOON. WIND NORTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT IN THE AFTERNOON. HIGH PLUS 1. WIND CHILL MINUS 10 IN THE MORNING. UV INDEX 3 OR MODERATE. NIAGARA FALLS - WELLAND - SOUTHERN NIAGARA REGION. TODAY..SNOW CHANGING TO A FEW RAIN SHOWERS OR WET FLURRIES THIS AFTERNOON. SNOWFALL AMOUNT 5 CM. WIND SOUTHEAST 30 KM/H GUSTING TO 50. HIGH PLUS 4. UV INDEX 1 OR LOW. TONIGHT..A FEW RAIN SHOWERS OR WET FLURRIES ENDING THIS EVENING THEN CLOUDY WITH 60 PERCENT CHANCE OF FLURRIES. WIND SOUTHWEST 40 KM/H GUSTING TO 70 INCREASING TO 60 GUSTING TO 90 THIS EVENING THEN BECOMING WEST 40 GUSTING TO 60 OVERNIGHT. LOW MINUS 4. WIND CHILL MINUS 9 OVERNIGHT. SATURDAY..CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES IN THE MORNING. CLEARING LATE IN THE AFTERNOON. WIND NORTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT IN THE AFTERNOON. HIGH PLUS 1. WIND CHILL MINUS 12 IN THE MORNING. UV INDEX 3 OR MODERATE. ST. CATHARINES - GRIMSBY - NORTHERN NIAGARA REGION. TODAY..SNOW CHANGING TO A FEW RAIN SHOWERS OR WET FLURRIES THIS AFTERNOON. SNOWFALL AMOUNT 5 CM. WIND SOUTHEAST 30 KM/H GUSTING TO 50. HIGH PLUS 4. UV INDEX 1 OR LOW. TONIGHT..A FEW RAIN SHOWERS OR WET FLURRIES ENDING THIS EVENING THEN CLOUDY WITH 60 PERCENT CHANCE OF FLURRIES. WIND SOUTHWEST 50 KM/H GUSTING TO 80. LOW MINUS 2. WIND CHILL MINUS 9 OVERNIGHT. SATURDAY..CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES IN THE MORNING. CLEARING LATE IN THE AFTERNOON. WIND NORTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT IN THE AFTERNOON. HIGH PLUS 2. WIND CHILL MINUS 9 IN THE MORNING. UV INDEX 3 OR MODERATE. CITY OF HAMILTON. TODAY..SNOW CHANGING TO A FEW RAIN SHOWERS OR WET FLURRIES THIS AFTERNOON. SNOWFALL AMOUNT 5 CM. WIND SOUTHEAST 20 KM/H BECOMING SOUTH 40 GUSTING TO 60 THIS AFTERNOON THEN WEST 50 GUSTING TO 70. HIGH PLUS 3. UV INDEX 1 OR LOW. TONIGHT..A FEW RAIN SHOWERS OR WET FLURRIES CHANGING TO A FEW FLURRIES THIS EVENING AND ENDING OVERNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. LOCAL BLOWING SNOW OVERNIGHT. WIND WEST 50 KM/H GUSTING TO 70. LOW MINUS 3. WIND CHILL MINUS 11 OVERNIGHT. SATURDAY..MAINLY CLOUDY. 30 PERCENT CHANCE OF FLURRIES EARLY IN THE MORNING. CLEARING IN THE AFTERNOON. WIND NORTHWEST 30 KM/H GUSTING TO 50 BECOMING LIGHT IN THE AFTERNOON. HIGH PLUS 2. WIND CHILL MINUS 10 IN THE MORNING. UV INDEX 3 OR MODERATE. REMAINDER UNCHANGED. END