009
FPCN11 CWTO 031018 AAA
UPDATED FORECASTS FOR SOUTHERN ONTARIO AND THE NATIONAL CAPITAL
REGION ISSUED BY ENVIRONMENT CANADA AT 6:17 A.M. EDT MONDAY 3 AUGUST
2026 FOR TODAY AND TUESDAY.
THE NEXT SCHEDULED FORECAST WILL BE ISSUED AT 11:00 A.M. EDT.
WINDSOR - LEAMINGTON - ESSEX COUNTY.
TODAY..SUNNY. FOG PATCHES DISSIPATING THIS MORNING. WIND NORTH
20 KM/H BECOMING LIGHT THIS AFTERNOON. HIGH 26. HUMIDEX 31. UV
INDEX 8 OR VERY HIGH.
TONIGHT..CLEAR. LOW 13.
TUESDAY..SUNNY. HIGH 28. HUMIDEX 31. UV INDEX 9 OR VERY HIGH.
CHATHAM-KENT - RONDEAU PARK.
TODAY..SUNNY. FOG PATCHES DISSIPATING THIS MORNING. WIND NORTH
20 KM/H BECOMING LIGHT THIS AFTERNOON. HIGH 25. HUMIDEX 30. UV
INDEX 8 OR VERY HIGH.
TONIGHT..CLEAR. LOW 11.
TUESDAY..SUNNY. HIGH 26. HUMIDEX 30. UV INDEX 9 OR VERY HIGH.
SIMCOE - DELHI - NORFOLK.
TODAY..CLEARING THIS MORNING. WIND BECOMING NORTHWEST 20 KM/H GUSTING
TO 40 THIS MORNING. HIGH 26. HUMIDEX 31. UV INDEX 8 OR VERY HIGH.
TONIGHT..CLEAR. LOW 10.
TUESDAY..SUNNY. HIGH 27. HUMIDEX 31. UV INDEX 9 OR VERY HIGH.
DUNNVILLE - CALEDONIA - HALDIMAND.
TODAY..CLEARING THIS MORNING. WIND BECOMING NORTHWEST 20 KM/H GUSTING
TO 40 THIS MORNING. HIGH 26. HUMIDEX 31. UV INDEX 7 OR HIGH.
TONIGHT..CLEAR. LOW 11.
TUESDAY..SUNNY. HIGH 27. HUMIDEX 31. UV INDEX 9 OR VERY HIGH.
WOODSTOCK - TILLSONBURG - OXFORD COUNTY.
TODAY..SUNNY. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40 THIS
MORNING. HIGH 26. HUMIDEX 31. UV INDEX 8 OR VERY HIGH.
TONIGHT..CLEAR. LOW 10.
TUESDAY..SUNNY. HIGH 27. HUMIDEX 30. UV INDEX 9 OR VERY HIGH.
BRANTFORD - COUNTY OF BRANT.
TODAY..MAINLY SUNNY. WIND BECOMING NORTHWEST 20 KM/H GUSTING TO 40
THIS MORNING. HIGH 26. HUMIDEX 31. UV INDEX 8 OR VERY HIGH.
TONIGHT..CLEAR. LOW 10.
TUESDAY..SUNNY. HIGH 27. HUMIDEX 31. UV INDEX 9 OR VERY HIGH.
CITY OF HAMILTON.
TODAY..A MIX OF SUN AND CLOUD. CLEARING EARLY THIS AFTERNOON. WIND
NORTHWEST 20 KM/H GUSTING TO 40. HIGH 26. HUMIDEX 31. UV INDEX 7 OR
HIGH.
TONIGHT..CLEAR. LOW 12.
TUESDAY..SUNNY. HIGH 27. HUMIDEX 30. UV INDEX 9 OR VERY HIGH.
BURLINGTON - OAKVILLE.
TODAY..CLEARING. WIND NORTHWEST 20 KM/H GUSTING TO 40. HIGH 26.
HUMIDEX 31. UV INDEX 7 OR HIGH.
TONIGHT..CLEAR. LOW 14.
TUESDAY..SUNNY. HIGH 27. HUMIDEX 31. UV INDEX 9 OR VERY HIGH.
HALTON HILLS - MILTON.
TODAY..CLEARING THIS MORNING. WIND NORTHWEST 20 KM/H GUSTING TO 40.
HIGH 26. HUMIDEX 31. UV INDEX 7 OR HIGH.
TONIGHT..CLEAR. LOW 12.
TUESDAY..SUNNY. HIGH 27. HUMIDEX 30. UV INDEX 9 OR VERY HIGH.
MISSISSAUGA - BRAMPTON.
TODAY..CLEARING. WIND NORTHWEST 20 KM/H GUSTING TO 40. HIGH 26.
HUMIDEX 31. UV INDEX 7 OR HIGH.
TONIGHT..CLEAR. LOW 14.
TUESDAY..SUNNY. HIGH 28. HUMIDEX 31. UV INDEX 9 OR VERY HIGH.
CALEDON.
TODAY..CLEARING. WIND NORTHWEST 20 KM/H GUSTING TO 40. HIGH 24.
HUMIDEX 28. UV INDEX 7 OR HIGH.
TONIGHT..CLEAR. LOW 12.
TUESDAY..SUNNY. HIGH 27. HUMIDEX 30. UV INDEX 9 OR VERY HIGH.
KITCHENER - CAMBRIDGE - REGION OF WATERLOO.
TODAY..CLEARING THIS MORNING. WIND NORTHWEST 20 KM/H GUSTING TO 40.
HIGH 25. HUMIDEX 29. UV INDEX 7 OR HIGH.
TONIGHT..CLEAR. LOW 10.
TUESDAY..SUNNY. HIGH 27. HUMIDEX 30. UV INDEX 9 OR VERY HIGH.
GUELPH - ERIN - SOUTHERN WELLINGTON COUNTY.
TODAY..CLEARING THIS MORNING. WIND NORTHWEST 20 KM/H GUSTING TO 40.
HIGH 25. HUMIDEX 29. UV INDEX 7 OR HIGH.
TONIGHT..CLEAR. LOW 10.
TUESDAY..SUNNY. HIGH 27. HUMIDEX 30. UV INDEX 9 OR VERY HIGH.
MOUNT FOREST - ARTHUR - NORTHERN WELLINGTON COUNTY.
TODAY..CLEARING. WIND NORTHWEST 20 KM/H GUSTING TO 40. HIGH 23.
HUMIDEX 26. UV INDEX 7 OR HIGH.
TONIGHT..CLEAR. LOW 10.
TUESDAY..SUNNY. HIGH 25. HUMIDEX 28. UV INDEX 9 OR VERY HIGH.
ORANGEVILLE - GRAND VALLEY - SOUTHERN DUFFERIN COUNTY.
TODAY..CLEARING. WIND NORTHWEST 20 KM/H GUSTING TO 40. HIGH 23.
HUMIDEX 26. UV INDEX 7 OR HIGH.
TONIGHT..CLEAR. LOW 10.
TUESDAY..SUNNY. HIGH 26. HUMIDEX 29. UV INDEX 9 OR VERY HIGH.
SHELBURNE - MANSFIELD - NORTHERN DUFFERIN COUNTY.
TODAY..CLEARING. WIND NORTHWEST 20 KM/H GUSTING TO 40. HIGH 23.
HUMIDEX 26. UV INDEX 7 OR HIGH.
TONIGHT..CLEAR. LOW 10.
TUESDAY..SUNNY. HIGH 26. HUMIDEX 29. UV INDEX 9 OR VERY HIGH.
INNISFIL - NEW TECUMSETH - ANGUS.
TODAY..CLEARING. WIND NORTHWEST 20 KM/H GUSTING TO 40. HIGH 24.
HUMIDEX 28. UV INDEX 7 OR HIGH.
TONIGHT..CLEAR. LOW 11.
TUESDAY..SUNNY. HIGH 27. HUMIDEX 31. UV INDEX 9 OR VERY HIGH.
BARRIE - COLLINGWOOD - HILLSDALE.
TODAY..CLEARING THIS MORNING. WIND NORTH 20 KM/H GUSTING TO 40.
HIGH 23. HUMIDEX 27. UV INDEX 7 OR HIGH.
TONIGHT..CLEAR. LOW 12.
TUESDAY..SUNNY. HIGH 27. HUMIDEX 31. UV INDEX 8 OR VERY HIGH.
MIDLAND - COLDWATER - ORR LAKE.
TODAY..SUNNY. WIND NORTHWEST 20 KM/H GUSTING TO 40. HIGH 23. HUMIDEX
27. UV INDEX 7 OR HIGH.
TONIGHT..CLEAR. LOW 12.
TUESDAY..SUNNY. HIGH 27. HUMIDEX 30. UV INDEX 9 OR VERY HIGH.
ORILLIA - LAGOON CITY - WASHAGO.
TODAY..A MIX OF SUN AND CLOUD. CLEARING THIS AFTERNOON. WIND
NORTHWEST 20 KM/H GUSTING TO 40. HIGH 24. HUMIDEX 28. UV INDEX 7 OR
HIGH.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW 12.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 27.
HUMIDEX 30. UV INDEX 9 OR VERY HIGH.
BRACEBRIDGE - GRAVENHURST.
TODAY..MAINLY SUNNY. WIND NORTHWEST 20 KM/H GUSTING TO 40. HIGH 25.
HUMIDEX 28. UV INDEX 7 OR HIGH.
TONIGHT..CLEAR. FOG PATCHES DEVELOPING OVERNIGHT. LOW 11.
TUESDAY..SUNNY. FOG PATCHES DISSIPATING IN THE MORNING. HIGH 27.
HUMIDEX 30. UV INDEX 8 OR VERY HIGH.
REMAINDER UNCHANGED.
END
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