FPCN11 CWTO 111645 AAB UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA AT 12:44 P.M. EDT WEDNESDAY 11 MARCH 2026 FOR TODAY AND THURSDAY. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 3:30 P.M. EDT. CITY OF TORONTO. TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 15 TO 25 MM. WIND NORTHEAST 20 KM/H BECOMING LIGHT EARLY THIS AFTERNOON. HIGH 13. UV INDEX 2 OR LOW. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF RAIN SHOWERS CHANGING TO 30 PERCENT CHANCE OF FLURRIES NEAR MIDNIGHT. WIND BECOMING WEST 30 KM/H GUSTING TO 50 THIS EVENING. LOW MINUS 3. WIND CHILL MINUS 9 OVERNIGHT. THURSDAY..CLOUDY. 30 PERCENT CHANCE OF FLURRIES IN THE MORNING. WIND WEST 30 KM/H GUSTING TO 50. HIGH PLUS 3. WIND CHILL MINUS 10 IN THE MORNING. UV INDEX 2 OR LOW. SIMCOE - DELHI - NORFOLK. TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 15 TO 25 MM. WIND BECOMING SOUTHWEST 20 KM/H GUSTING TO 40 THEN WEST 40 GUSTING TO 60 LATE THIS AFTERNOON. HIGH 16. UV INDEX 2 OR LOW. TONIGHT..CLOUDY. 60 PERCENT CHANCE OF RAIN SHOWERS CHANGING TO 30 PERCENT CHANCE OF FLURRIES AFTER MIDNIGHT. WIND WEST 40 KM/H GUSTING TO 60. LOW MINUS 1. THURSDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. WIND WEST 30 KM/H GUSTING TO 50. HIGH PLUS 3. WIND CHILL MINUS 8 IN THE MORNING. UV INDEX 4 OR MODERATE. DUNNVILLE - CALEDONIA - HALDIMAND. TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 15 TO 25 MM. WIND SOUTH 20 KM/H BECOMING WEST 30 GUSTING TO 50 LATE THIS AFTERNOON. HIGH 16. UV INDEX 2 OR LOW. TONIGHT..CLOUDY. 60 PERCENT CHANCE OF RAIN SHOWERS CHANGING TO 30 PERCENT CHANCE OF FLURRIES AFTER MIDNIGHT. WIND WEST 40 KM/H GUSTING TO 60. LOW MINUS 2. WIND CHILL MINUS 10 OVERNIGHT. THURSDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. WIND WEST 30 KM/H GUSTING TO 50. HIGH PLUS 4. WIND CHILL MINUS 9 IN THE MORNING. UV INDEX 3 OR MODERATE. WOODSTOCK - TILLSONBURG - OXFORD COUNTY. TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 15 TO 25 MM. WIND WEST 30 KM/H GUSTING TO 50. HIGH 15. UV INDEX 2 OR LOW. TONIGHT..CLOUDY. 60 PERCENT CHANCE OF RAIN SHOWERS CHANGING TO 30 PERCENT CHANCE OF FLURRIES AFTER MIDNIGHT. WIND WEST 40 KM/H GUSTING TO 60. LOW MINUS 3. WIND CHILL MINUS 10 OVERNIGHT. THURSDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. WIND WEST 30 KM/H GUSTING TO 50. HIGH PLUS 4. WIND CHILL MINUS 10 IN THE MORNING. UV INDEX 3 OR MODERATE. BRANTFORD - COUNTY OF BRANT. TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 15 TO 25 MM. WIND BECOMING WEST 20 KM/H GUSTING TO 40 THIS AFTERNOON. HIGH 15. UV INDEX 2 OR LOW. TONIGHT..CLOUDY. 60 PERCENT CHANCE OF RAIN SHOWERS CHANGING TO 30 PERCENT CHANCE OF FLURRIES AFTER MIDNIGHT. WIND WEST 20 KM/H GUSTING TO 40 INCREASING TO 40 GUSTING TO 60 THIS EVENING. LOW MINUS 3. WIND CHILL MINUS 10 OVERNIGHT. THURSDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. WIND WEST 30 KM/H GUSTING TO 50. HIGH PLUS 4. WIND CHILL MINUS 10 IN THE MORNING. UV INDEX 3 OR MODERATE. CITY OF HAMILTON. TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 15 TO 25 MM. WIND BECOMING WEST 30 KM/H GUSTING TO 50 LATE THIS AFTERNOON. HIGH 14. UV INDEX 2 OR LOW. TONIGHT..CLOUDY. 60 PERCENT CHANCE OF RAIN SHOWERS CHANGING TO 30 PERCENT CHANCE OF FLURRIES AFTER MIDNIGHT. WIND WEST 40 KM/H GUSTING TO 60. LOW MINUS 3. WIND CHILL MINUS 10 OVERNIGHT. THURSDAY..MAINLY CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. WIND WEST 40 KM/H GUSTING TO 60. HIGH PLUS 3. WIND CHILL MINUS 11 IN THE MORNING. UV INDEX 3 OR MODERATE. BURLINGTON - OAKVILLE. TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 15 TO 25 MM. HIGH 14. UV INDEX 2 OR LOW. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF RAIN SHOWERS CHANGING TO 30 PERCENT CHANCE OF FLURRIES NEAR MIDNIGHT. WIND WEST 40 KM/H GUSTING TO 60. LOW MINUS 4. WIND CHILL MINUS 13 OVERNIGHT. THURSDAY..CLOUDY. 30 PERCENT CHANCE OF FLURRIES IN THE MORNING. WIND WEST 40 KM/H GUSTING TO 60. HIGH PLUS 5. WIND CHILL MINUS 13 IN THE MORNING. UV INDEX 2 OR LOW. HALTON HILLS - MILTON. TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 15 TO 25 MM. HIGH 14. UV INDEX 2 OR LOW. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF RAIN SHOWERS CHANGING TO 30 PERCENT CHANCE OF FLURRIES NEAR MIDNIGHT. WIND BECOMING WEST 40 KM/H GUSTING TO 60 THIS EVENING. LOW MINUS 4. WIND CHILL MINUS 12 OVERNIGHT. THURSDAY..CLOUDY. 30 PERCENT CHANCE OF FLURRIES IN THE MORNING. WIND NORTHWEST 30 KM/H GUSTING TO 50. HIGH PLUS 5. WIND CHILL MINUS 12 IN THE MORNING. UV INDEX 2 OR LOW. MISSISSAUGA - BRAMPTON. TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 15 TO 25 MM. HIGH 13. UV INDEX 2 OR LOW. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF RAIN SHOWERS CHANGING TO 30 PERCENT CHANCE OF FLURRIES NEAR MIDNIGHT. WIND BECOMING WEST 30 KM/H GUSTING TO 50 THIS EVENING. LOW MINUS 4. WIND CHILL MINUS 12 OVERNIGHT. THURSDAY..CLOUDY. 30 PERCENT CHANCE OF FLURRIES IN THE MORNING. WIND NORTHWEST 30 KM/H GUSTING TO 50. HIGH PLUS 2. WIND CHILL MINUS 12 IN THE MORNING. UV INDEX 2 OR LOW. VAUGHAN - RICHMOND HILL - MARKHAM. TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 15 TO 25 MM. HIGH 12. UV INDEX 2 OR LOW. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF RAIN SHOWERS CHANGING TO 30 PERCENT CHANCE OF FLURRIES NEAR MIDNIGHT. WIND BECOMING WEST 40 KM/H GUSTING TO 60 THIS EVENING. LOW MINUS 4. WIND CHILL MINUS 13 OVERNIGHT. THURSDAY..CLOUDY. 30 PERCENT CHANCE OF FLURRIES IN THE MORNING. WIND WEST 40 KM/H GUSTING TO 60. HIGH PLUS 2. WIND CHILL MINUS 13 IN THE MORNING. UV INDEX 1 OR LOW. PICKERING - OSHAWA - SOUTHERN DURHAM REGION. TODAY..SHOWERS WITH RISK OF A THUNDERSTORM. AMOUNT 15 TO 25 MM. HIGH 10. UV INDEX 2 OR LOW. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF RAIN SHOWERS CHANGING TO 30 PERCENT CHANCE OF FLURRIES NEAR MIDNIGHT. WIND BECOMING NORTHWEST 30 KM/H GUSTING TO 50 THIS EVENING. LOW MINUS 3. WIND CHILL MINUS 10 OVERNIGHT. THURSDAY..CLOUDY. 30 PERCENT CHANCE OF FLURRIES IN THE MORNING. WIND WEST 30 KM/H GUSTING TO 50. HIGH PLUS 3. WIND CHILL MINUS 10 IN THE MORNING. UV INDEX 1 OR LOW. KITCHENER - CAMBRIDGE - REGION OF WATERLOO. TODAY..RAIN WITH RISK OF A THUNDERSTORM. AMOUNT 15 TO 25 MM. WIND BECOMING WEST 40 KM/H GUSTING TO 60 LATE THIS AFTERNOON. HIGH 12. UV INDEX 1 OR LOW. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF RAIN SHOWERS CHANGING TO 40 PERCENT CHANCE OF FLURRIES NEAR MIDNIGHT. WIND NORTHWEST 40 KM/H GUSTING TO 60. LOW MINUS 4. WIND CHILL MINUS 13 OVERNIGHT. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF FLURRIES IN THE MORNING AND EARLY IN THE AFTERNOON. WIND NORTHWEST 40 KM/H GUSTING TO 60. HIGH PLUS 2. WIND CHILL MINUS 13 IN THE MORNING. UV INDEX 2 OR LOW. GUELPH - ERIN - SOUTHERN WELLINGTON COUNTY. TODAY..RAIN WITH RISK OF A THUNDERSTORM. AMOUNT 15 TO 25 MM. HIGH 12. UV INDEX 1 OR LOW. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF RAIN SHOWERS CHANGING TO 40 PERCENT CHANCE OF FLURRIES NEAR MIDNIGHT. WIND BECOMING WEST 40 KM/H GUSTING TO 60 THIS EVENING. LOW MINUS 4. WIND CHILL MINUS 12 OVERNIGHT. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF FLURRIES IN THE MORNING AND EARLY IN THE AFTERNOON. WIND WEST 30 KM/H GUSTING TO 50. HIGH PLUS 2. WIND CHILL MINUS 12 IN THE MORNING. UV INDEX 2 OR LOW. KALADAR - BANNOCKBURN - BON ECHO PARK. TODAY..CLOUDY. 60 PERCENT CHANCE OF FREEZING DRIZZLE OR DRIZZLE NEAR NOON. FREEZING RAIN BEGINNING EARLY THIS AFTERNOON. WIND NORTHEAST 20 KM/H BECOMING LIGHT THIS AFTERNOON. TEMPERATURE STEADY NEAR ZERO. UV INDEX 2 OR LOW. TONIGHT..FREEZING RAIN CHANGING TO PERIODS OF RAIN OR FREEZING RAIN THIS EVENING AND ENDING AFTER MIDNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. WIND BECOMING WEST 30 KM/H GUSTING TO 50 LATE THIS EVENING. LOW MINUS 4. WIND CHILL MINUS 10 OVERNIGHT. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF FLURRIES IN THE MORNING AND EARLY IN THE AFTERNOON. WIND WEST 30 KM/H GUSTING TO 50. HIGH PLUS 2. WIND CHILL MINUS 12 IN THE MORNING. UV INDEX 2 OR LOW. BANCROFT - HASTINGS HIGHLANDS - DENBIGH. TODAY..CLOUDY. 60 PERCENT CHANCE OF FREEZING DRIZZLE OR DRIZZLE NEAR NOON. FREEZING RAIN BEGINNING EARLY THIS AFTERNOON. HIGH PLUS 1. UV INDEX 2 OR LOW. TONIGHT..FREEZING RAIN CHANGING TO PERIODS OF RAIN OR FREEZING RAIN THIS EVENING AND ENDING AFTER MIDNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. WIND BECOMING WEST 30 KM/H GUSTING TO 50 LATE THIS EVENING. LOW MINUS 6. WIND CHILL MINUS 12 OVERNIGHT. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF FLURRIES IN THE MORNING AND EARLY IN THE AFTERNOON. WIND WEST 30 KM/H GUSTING TO 50. HIGH MINUS 1. WIND CHILL MINUS 14 IN THE MORNING AND MINUS 7 IN THE AFTERNOON. UV INDEX 1 OR LOW. PLEVNA - SHARBOT LAKE - WESTERN LANARK COUNTY. TODAY..CLOUDY. 60 PERCENT CHANCE OF FREEZING DRIZZLE OR DRIZZLE EARLY THIS AFTERNOON. FREEZING RAIN BEGINNING THIS AFTERNOON. TEMPERATURE STEADY NEAR ZERO. UV INDEX 2 OR LOW. TONIGHT..FREEZING RAIN CHANGING TO PERIODS OF RAIN OR FREEZING RAIN THIS EVENING AND ENDING AFTER MIDNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. WIND BECOMING WEST 30 KM/H GUSTING TO 60 LATE THIS EVENING. LOW MINUS 4. WIND CHILL MINUS 10 OVERNIGHT. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF FLURRIES IN THE MORNING AND EARLY IN THE AFTERNOON. WIND WEST 30 KM/H GUSTING TO 60. HIGH ZERO. WIND CHILL MINUS 12 IN THE MORNING. UV INDEX 1 OR LOW. BARRY'S BAY - KILLALOE. TODAY..CLOUDY. 60 PERCENT CHANCE OF FREEZING DRIZZLE OR DRIZZLE NEAR NOON. FREEZING RAIN BEGINNING EARLY THIS AFTERNOON. WIND EAST 20 KM/H BECOMING LIGHT THIS AFTERNOON. HIGH ZERO. WIND CHILL MINUS 7 THIS AFTERNOON. UV INDEX 2 OR LOW. TONIGHT..FREEZING RAIN CHANGING TO PERIODS OF RAIN OR FREEZING RAIN THIS EVENING AND ENDING AFTER MIDNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. WIND BECOMING WEST 30 KM/H GUSTING TO 50 LATE THIS EVENING. LOW MINUS 6. WIND CHILL MINUS 13 OVERNIGHT. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF FLURRIES IN THE MORNING AND EARLY IN THE AFTERNOON. WIND WEST 30 KM/H GUSTING TO 50. HIGH MINUS 2. WIND CHILL MINUS 14 IN THE MORNING AND MINUS 8 IN THE AFTERNOON. UV INDEX 1 OR LOW. PETAWAWA - PEMBROKE - COBDEN. TODAY..PERIODS OF FREEZING RAIN OR ICE PELLETS. WIND UP TO 15 KM/H. TEMPERATURE STEADY NEAR MINUS 1. WIND CHILL MINUS 7 THIS AFTERNOON. UV INDEX 2 OR LOW. TONIGHT..PERIODS OF FREEZING RAIN OR ICE PELLETS CHANGING TO A FEW FLURRIES NEAR MIDNIGHT. LOCAL SNOW AND ICE PELLET AMOUNT 2 CM. WIND BECOMING WEST 30 KM/H GUSTING TO 50 LATE THIS EVENING. LOW MINUS 6. WIND CHILL MINUS 3 THIS EVENING AND MINUS 13 OVERNIGHT. THURSDAY..A FEW FLURRIES ENDING IN THE MORNING THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. WIND WEST 30 KM/H GUSTING TO 50. HIGH MINUS 2. WIND CHILL MINUS 14 IN THE MORNING AND MINUS 9 IN THE AFTERNOON. UV INDEX 1 OR LOW. WESTERN ALGONQUIN PARK - LAKE OF TWO RIVERS. TODAY..PERIODS OF FREEZING RAIN OR ICE PELLETS. WIND EAST 30 KM/H BECOMING LIGHT THIS AFTERNOON. HIGH ZERO. WIND CHILL MINUS 9 THIS AFTERNOON. UV INDEX 2 OR LOW. TONIGHT..PERIODS OF FREEZING RAIN OR ICE PELLETS CHANGING TO A FEW FLURRIES NEAR MIDNIGHT. LOCAL SNOW AND ICE PELLET AMOUNT 2 CM. WIND BECOMING WEST 30 KM/H GUSTING TO 50 LATE THIS EVENING. LOW MINUS 8. WIND CHILL MINUS 6 THIS EVENING AND MINUS 16 OVERNIGHT. THURSDAY..A FEW FLURRIES ENDING IN THE MORNING THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. WIND WEST 30 KM/H GUSTING TO 50. HIGH MINUS 2. WIND CHILL MINUS 17 IN THE MORNING AND MINUS 8 IN THE AFTERNOON. UV INDEX 1 OR LOW. DEEP RIVER - WHITNEY - EASTERN ALGONQUIN PARK. TODAY..PERIODS OF FREEZING RAIN OR ICE PELLETS. WIND EAST 20 KM/H BECOMING LIGHT THIS AFTERNOON. HIGH ZERO. WIND CHILL MINUS 8 THIS AFTERNOON. UV INDEX 2 OR LOW. TONIGHT..PERIODS OF FREEZING RAIN OR ICE PELLETS CHANGING TO A FEW FLURRIES NEAR MIDNIGHT. LOCAL SNOW AND ICE PELLET AMOUNT 2 CM. WIND BECOMING WEST 30 KM/H GUSTING TO 50 LATE THIS EVENING. LOW MINUS 8. WIND CHILL MINUS 4 THIS EVENING AND MINUS 16 OVERNIGHT. THURSDAY..A FEW FLURRIES ENDING IN THE MORNING THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. WIND WEST 30 KM/H GUSTING TO 50. HIGH MINUS 2. WIND CHILL MINUS 17 IN THE MORNING AND MINUS 8 IN THE AFTERNOON. UV INDEX 1 OR LOW. REMAINDER UNCHANGED. END