FPCN11 CWTO 120124 AAC UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL REGION ISSUED BY ENVIRONMENT CANADA AT 9:23 P.M. EDT WEDNESDAY 11 MARCH 2026 FOR TONIGHT THURSDAY AND THURSDAY NIGHT. THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 5:00 A.M. EDT THURSDAY. BELLEVILLE - QUINTE WEST - EASTERN NORTHUMBERLAND COUNTY. TONIGHT..A FEW RAIN SHOWERS ENDING AFTER MIDNIGHT THEN CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. FOG PATCHES DISSIPATING NEAR MIDNIGHT. WIND BECOMING WEST 40 KM/H GUSTING TO 60 LATE THIS EVENING. LOW MINUS 2. THURSDAY..CLOUDY. 30 PERCENT CHANCE OF FLURRIES EARLY IN THE MORNING. WIND WEST 30 KM/H GUSTING TO 50. HIGH PLUS 1. WIND CHILL MINUS 9 IN THE MORNING. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..PARTLY CLOUDY. WIND WEST 30 KM/H GUSTING TO 50 BECOMING LIGHT NEAR MIDNIGHT. LOW MINUS 6. WIND CHILL MINUS 9 OVERNIGHT. PICTON - SANDBANKS PARK. TONIGHT..A FEW RAIN SHOWERS ENDING AFTER MIDNIGHT THEN CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. FOG PATCHES DISSIPATING NEAR MIDNIGHT. WIND BECOMING WEST 40 KM/H GUSTING TO 60 LATE THIS EVENING. LOW MINUS 2. THURSDAY..CLOUDY. 30 PERCENT CHANCE OF FLURRIES EARLY IN THE MORNING. WIND WEST 30 KM/H GUSTING TO 50. HIGH PLUS 1. WIND CHILL MINUS 9 IN THE MORNING. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..PARTLY CLOUDY. WIND WEST 30 KM/H GUSTING TO 50 BECOMING LIGHT NEAR MIDNIGHT. LOW MINUS 6. WIND CHILL MINUS 9 OVERNIGHT. NAPANEE - CONSECON. TONIGHT..A FEW RAIN SHOWERS ENDING AFTER MIDNIGHT THEN CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. FOG PATCHES DISSIPATING NEAR MIDNIGHT. WIND BECOMING WEST 40 KM/H GUSTING TO 60 LATE THIS EVENING. LOW MINUS 2. THURSDAY..CLOUDY. 30 PERCENT CHANCE OF FLURRIES EARLY IN THE MORNING. WIND WEST 30 KM/H GUSTING TO 50. HIGH PLUS 1. WIND CHILL MINUS 9 IN THE MORNING. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..PARTLY CLOUDY. WIND WEST 30 KM/H GUSTING TO 50 BECOMING LIGHT NEAR MIDNIGHT. LOW MINUS 6. WIND CHILL MINUS 9 OVERNIGHT. KINGSTON - ODESSA - FRONTENAC ISLANDS. TONIGHT..A FEW RAIN SHOWERS ENDING AFTER MIDNIGHT THEN CLOUDY WITH 30 PERCENT CHANCE OF FLURRIES. FOG PATCHES DISSIPATING BEFORE MORNING. WIND BECOMING WEST 40 KM/H GUSTING TO 60 LATE THIS EVENING. LOW MINUS 2. THURSDAY..CLOUDY. 30 PERCENT CHANCE OF FLURRIES EARLY IN THE MORNING. WIND WEST 30 KM/H GUSTING TO 50. HIGH PLUS 1. WIND CHILL MINUS 9 IN THE MORNING. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..CLOUDY. BECOMING PARTLY CLOUDY IN THE EVENING. WIND WEST 30 KM/H GUSTING TO 50 BECOMING LIGHT NEAR MIDNIGHT. LOW MINUS 6. WIND CHILL MINUS 9 OVERNIGHT. STIRLING - TWEED - MADOC. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF RAIN SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT THEN 40 PERCENT CHANCE OF FLURRIES OVERNIGHT. FOG PATCHES DISSIPATING NEAR MIDNIGHT. WIND BECOMING WEST 40 KM/H GUSTING TO 60 LATE THIS EVENING. LOW MINUS 3. WIND CHILL MINUS 9 OVERNIGHT. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF FLURRIES IN THE MORNING. WIND WEST 30 KM/H GUSTING TO 60. HIGH PLUS 1. WIND CHILL MINUS 10 IN THE MORNING. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..CLEARING IN THE EVENING. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT AFTER MIDNIGHT. LOW MINUS 7. WIND CHILL NEAR MINUS 9. TAMWORTH - SYDENHAM - SOUTH FRONTENAC. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF RAIN SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT THEN 40 PERCENT CHANCE OF FLURRIES OVERNIGHT. FOG PATCHES DISSIPATING AFTER MIDNIGHT. WIND BECOMING WEST 40 KM/H GUSTING TO 60 AFTER MIDNIGHT. LOW MINUS 3. WIND CHILL MINUS 9 OVERNIGHT. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF FLURRIES IN THE MORNING. WIND WEST 30 KM/H GUSTING TO 60. HIGH PLUS 1. WIND CHILL MINUS 10 IN THE MORNING. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..CLOUDY. CLEARING NEAR MIDNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT AFTER MIDNIGHT. LOW MINUS 7. WIND CHILL NEAR MINUS 9. KALADAR - BANNOCKBURN - BON ECHO PARK. TONIGHT..PERIODS OF RAIN OR FREEZING RAIN ENDING AFTER MIDNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. FOG PATCHES DISSIPATING AFTER MIDNIGHT. WIND BECOMING WEST 30 KM/H GUSTING TO 50 AFTER MIDNIGHT. 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 2 OR LOW. THURSDAY NIGHT..CLEARING NEAR MIDNIGHT. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW MINUS 10. WIND CHILL MINUS 10 IN THE EVENING. GANANOQUE - MALLORYTOWN. TONIGHT..CLOUDY. 40 PERCENT CHANCE OF RAIN SHOWERS LATE THIS EVENING AND AFTER MIDNIGHT THEN 40 PERCENT CHANCE OF FLURRIES OVERNIGHT. FOG PATCHES DISSIPATING AFTER MIDNIGHT. WIND BECOMING WEST 30 KM/H GUSTING TO 50 AFTER MIDNIGHT. LOW MINUS 3. WIND CHILL MINUS 9 OVERNIGHT. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF FLURRIES IN THE MORNING. WIND WEST 30 KM/H GUSTING TO 50. HIGH PLUS 1. WIND CHILL MINUS 10 IN THE MORNING. UV INDEX 4 OR MODERATE. THURSDAY NIGHT..CLOUDY. CLEARING AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT AFTER MIDNIGHT. LOW MINUS 7. WIND CHILL NEAR MINUS 9. BROCKVILLE - PRESCOTT. TONIGHT..PERIODS OF RAIN ENDING NEAR MIDNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OVERNIGHT THEN 40 PERCENT CHANCE OF FLURRIES BEFORE MORNING. FOG PATCHES DISSIPATING AFTER MIDNIGHT. WIND BECOMING SOUTHWEST 30 KM/H GUSTING TO 50 AFTER MIDNIGHT. LOW MINUS 3. THURSDAY..CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. WIND WEST 30 KM/H GUSTING TO 50. HIGH ZERO. WIND CHILL MINUS 10 IN THE MORNING. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..CLOUDY. BECOMING PARTLY CLOUDY AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW MINUS 7. WIND CHILL NEAR MINUS 10. WESTPORT - CHARLESTON LAKE. TONIGHT..PERIODS OF RAIN ENDING NEAR MIDNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OVERNIGHT THEN 40 PERCENT CHANCE OF FLURRIES BEFORE MORNING. FOG PATCHES DISSIPATING AFTER MIDNIGHT. WIND BECOMING SOUTHWEST 30 KM/H GUSTING TO 50 AFTER MIDNIGHT. LOW MINUS 3. THURSDAY..CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. WIND WEST 30 KM/H GUSTING TO 50. HIGH ZERO. WIND CHILL MINUS 10 IN THE MORNING. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. CLEARING BEFORE MORNING. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW MINUS 7. WIND CHILL NEAR MINUS 10. MERRICKVILLE-WOLFORD - KEMPTVILLE. TONIGHT..PERIODS OF RAIN ENDING NEAR MIDNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OVERNIGHT THEN 40 PERCENT CHANCE OF FLURRIES BEFORE MORNING. FOG PATCHES DISSIPATING OVERNIGHT. WIND SOUTHWEST 30 KM/H GUSTING TO 50. LOW MINUS 3. THURSDAY..CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. WIND WEST 30 KM/H GUSTING TO 50. HIGH ZERO. WIND CHILL MINUS 10 IN THE MORNING. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW MINUS 7. WIND CHILL NEAR MINUS 10. OTTAWA NORTH - KANATA - ORLEANS. TONIGHT..PERIODS OF RAIN OR FREEZING RAIN ENDING OVERNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. FOG PATCHES DISSIPATING OVERNIGHT. WIND BECOMING WEST 30 KM/H GUSTING TO 50 AFTER MIDNIGHT. LOW MINUS 4. WIND CHILL NEAR MINUS 10. 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 NEAR MINUS 12. UV INDEX 2 OR LOW. THURSDAY NIGHT..MAINLY CLOUDY. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW MINUS 8. WIND CHILL NEAR MINUS 11. OTTAWA SOUTH - RICHMOND - METCALFE. TONIGHT..PERIODS OF RAIN OR FREEZING RAIN ENDING OVERNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. FOG PATCHES DISSIPATING AFTER MIDNIGHT. WIND WEST 30 KM/H GUSTING TO 60. LOW MINUS 4. WIND CHILL NEAR MINUS 10. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF FLURRIES IN THE MORNING AND EARLY IN THE AFTERNOON. WIND WEST 30 KM/H GUSTING TO 60. HIGH MINUS 2. WIND CHILL NEAR MINUS 12. UV INDEX 2 OR LOW. THURSDAY NIGHT..MAINLY CLOUDY. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW MINUS 8. WIND CHILL NEAR MINUS 11. GATINEAU. TONIGHT..PERIODS OF RAIN OR FREEZING RAIN ENDING OVERNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. FOG PATCHES DISSIPATING AFTER MIDNIGHT. WIND BECOMING WEST 30 KM/H GUSTING TO 60 AFTER MIDNIGHT. LOW MINUS 4. WIND CHILL NEAR MINUS 10. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF FLURRIES IN THE MORNING AND EARLY IN THE AFTERNOON. WIND WEST 30 KM/H GUSTING TO 60. HIGH MINUS 2. WIND CHILL NEAR MINUS 12. UV INDEX 2 OR LOW. THURSDAY NIGHT..PARTLY CLOUDY. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW MINUS 8. WIND CHILL NEAR MINUS 11. PRESCOTT AND RUSSELL. TONIGHT..PERIODS OF RAIN OR FREEZING RAIN ENDING OVERNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. FOG PATCHES DISSIPATING AFTER MIDNIGHT. WIND BECOMING WEST 30 KM/H GUSTING TO 60 AFTER MIDNIGHT. LOW MINUS 4. WIND CHILL NEAR MINUS 10. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF FLURRIES IN THE MORNING AND EARLY IN THE AFTERNOON. WIND WEST 30 KM/H GUSTING TO 60. HIGH MINUS 2. WIND CHILL NEAR MINUS 12. UV INDEX 2 OR LOW. THURSDAY NIGHT..PARTLY CLOUDY. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW MINUS 8. WIND CHILL NEAR MINUS 11. MORRISBURG - LONG SAULT. TONIGHT..PERIODS OF RAIN ENDING NEAR MIDNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OVERNIGHT THEN 40 PERCENT CHANCE OF FLURRIES BEFORE MORNING. FOG PATCHES DISSIPATING AFTER MIDNIGHT. WIND BECOMING WEST 40 KM/H GUSTING TO 60 AFTER MIDNIGHT. TEMPERATURE RISING TO PLUS 3 BY MORNING. THURSDAY..CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. WIND WEST 40 KM/H GUSTING TO 60. HIGH MINUS 1. WIND CHILL NEAR MINUS 10. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW MINUS 8. WIND CHILL NEAR MINUS 12. CORNWALL - LANCASTER. TONIGHT..PERIODS OF RAIN ENDING NEAR MIDNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OVERNIGHT THEN 40 PERCENT CHANCE OF FLURRIES BEFORE MORNING. FOG PATCHES DISSIPATING OVERNIGHT. WIND BECOMING WEST 40 KM/H GUSTING TO 60 AFTER MIDNIGHT. TEMPERATURE RISING TO PLUS 3 BY MORNING. THURSDAY..CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. WIND WEST 40 KM/H GUSTING TO 60. HIGH MINUS 1. WIND CHILL NEAR MINUS 10. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW MINUS 8. WIND CHILL NEAR MINUS 12. WINCHESTER - NEWINGTON. TONIGHT..PERIODS OF RAIN ENDING NEAR MIDNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OVERNIGHT THEN 40 PERCENT CHANCE OF FLURRIES BEFORE MORNING. FOG PATCHES DISSIPATING AFTER MIDNIGHT. WIND BECOMING WEST 40 KM/H GUSTING TO 60 AFTER MIDNIGHT. TEMPERATURE RISING TO PLUS 3 BY MORNING. THURSDAY..CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. WIND WEST 40 KM/H GUSTING TO 60. HIGH MINUS 1. WIND CHILL NEAR MINUS 10. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW MINUS 8. WIND CHILL NEAR MINUS 12. MAXVILLE - ALEXANDRIA. TONIGHT..PERIODS OF RAIN ENDING NEAR MIDNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF RAIN SHOWERS OVERNIGHT THEN 40 PERCENT CHANCE OF FLURRIES BEFORE MORNING. FOG PATCHES DISSIPATING AFTER MIDNIGHT. WIND BECOMING WEST 40 KM/H GUSTING TO 60 AFTER MIDNIGHT. TEMPERATURE RISING TO PLUS 3 BY MORNING. THURSDAY..CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. WIND WEST 40 KM/H GUSTING TO 60. HIGH MINUS 1. WIND CHILL NEAR MINUS 10. UV INDEX 3 OR MODERATE. THURSDAY NIGHT..MAINLY CLOUDY. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW MINUS 8. WIND CHILL NEAR MINUS 12. PLEVNA - SHARBOT LAKE - WESTERN LANARK COUNTY. TONIGHT..PERIODS OF RAIN OR FREEZING RAIN ENDING AFTER MIDNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. FOG PATCHES DISSIPATING AFTER MIDNIGHT. WIND BECOMING WEST 30 KM/H GUSTING TO 50 AFTER MIDNIGHT. 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 2 OR LOW. THURSDAY NIGHT..CLOUDY. CLEARING AFTER MIDNIGHT. WIND NORTHWEST 20 KM/H BECOMING LIGHT IN THE EVENING. LOW MINUS 10. WIND CHILL MINUS 10 IN THE EVENING. SMITHS FALLS - PERTH - EASTERN LANARK COUNTY. TONIGHT..PERIODS OF RAIN OR FREEZING RAIN ENDING OVERNIGHT THEN CLOUDY WITH 40 PERCENT CHANCE OF FLURRIES. FOG PATCHES DISSIPATING AFTER MIDNIGHT. WIND BECOMING WEST 30 KM/H GUSTING TO 60 AFTER MIDNIGHT. LOW MINUS 4. WIND CHILL NEAR MINUS 10. THURSDAY..CLOUDY. 40 PERCENT CHANCE OF FLURRIES IN THE MORNING AND EARLY IN THE AFTERNOON. WIND WEST 30 KM/H GUSTING TO 60. HIGH MINUS 2. WIND CHILL NEAR MINUS 12. UV INDEX 2 OR LOW. THURSDAY NIGHT..CLOUDY. BECOMING PARTLY CLOUDY OVERNIGHT. WIND NORTHWEST 20 KM/H GUSTING TO 40 BECOMING LIGHT IN THE EVENING. LOW MINUS 8. WIND CHILL NEAR MINUS 11. REMAINDER UNCHANGED. END