720
AWCN10 CWTO 051724
WEATHER SUMMARY
FOR ONTARIO AND THE NATIONAL CAPITAL REGION
ISSUED BY ENVIRONMENT CANADA
AT 1:24 P.M. EDT SUNDAY 5 OCTOBER 2025.
DISCUSSION.
A WEATHER PATTERN MORE TYPICAL OF JULY OR AUGUST HAS SET UP OVER
ONTARIO, BRINGING WARM AIR AND SUNSHINE TO A LARGE PART OF THE
PROVINCE. TEMPERATURES REACHED 30.4 C IN WINDSOR AND 30.8 C SARNIA,
BUT NEITHER WAS A RECORD HIGH FOR THE DATE.
THE FOLLOWING AREAS SET OR TIED A DAILY MAXIMUM TEMPERATURE RECORD
ON OCTOBER 4, 2025 (TEMPERATURE VALUES GIVEN IN DEGREES CELSIUS).
ARMSTRONG AREA
NEW RECORD OF 26.0
OLD RECORD OF 23.9 SET IN 1937
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1930
ATIKOKAN AREA
NEW RECORD OF 29.9
OLD RECORD OF 23.9 SET IN 1953
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1914
CHAPLEAU AREA
NEW RECORD OF 27.8THESE TEMPERATURES
OLD RECORD OF 25.0 SET IN 1924
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1913
DRYDEN AREA
NEW RECORD OF 27.8
OLD RECORD OF 25.0 SET IN 1920
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1914
EAR FALLS AREA
NEW RECORD OF 24.7
OLD RECORD OF 24.4 SET IN 1963
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1928
FORT FRANCES AREA
NEW RECORD OF 28.5
OLD RECORD OF 25.6 SET IN 1913
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1912
GODERICH AREA
TIED RECORD OF 28.4 SET IN 2002
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1866
GREATER SUDBURY AREA
NEW RECORD OF 27.5
OLD RECORD OF 27.3 SET IN 2023
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1954
GREENSTONE (GERALDTON) AREA
NEW RECORD OF 27.1
OLD RECORD OF 22.8 SET IN 2023
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1948
LAKE SUPERIOR (PROVINCIAL PARK) AREA
NEW RECORD OF 26.3
OLD RECORD OF 23.3 SET IN 1976
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1940
LONDON AREA
TIED RECORD OF 28.9 SET IN 1919
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1871
MARATHON AREA
NEW RECORD OF 22.7
OLD RECORD OF 21.0 SET IN 2021
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1951
MOUNT FOREST AREA
NEW RECORD OF 28.1
OLD RECORD OF 27.8 SET IN 1926
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1889
MUSKOKA AREA
NEW RECORD OF 28.9
OLD RECORD OF 28.5 SET IN 2005
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1875
NIPIGON AREA
NEW RECORD OF 25.3
OLD RECORD OF 23.9 SET IN 2023
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1914
NORTH PERTH AREA
NEW RECORD OF 28.1
OLD RECORD OF 27.2 SET IN 1951
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1899
PICKLE LAKE AREA
NEW RECORD OF 25.5
OLD RECORD OF 22.8 SET IN 1962
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1930
SARNIA AREA
NEW RECORD OF 30.8
OLD RECORD OF 29.4 SET IN 1951
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1948
SAULT STE. MARIE AREA
NEW RECORD OF 28.0
OLD RECORD OF 27.8 SET IN 1922
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1921
SIOUX NARROWS AREA
NEW RECORD OF 26.5
OLD RECORD OF 24.0 SET IN 2011
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1933
SUDBURY (GREATER) AREA
NEW RECORD OF 27.5
OLD RECORD OF 27.3 SET IN 2023
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1954
THUNDER BAY AREA
NEW RECORD OF 28.4
OLD RECORD OF 24.4 SET IN 1922
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1877
UPSALA AREA
NEW RECORD OF 28.3
OLD RECORD OF 22.8 SET IN 1963
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1892
WAWA AREA
NEW RECORD OF 25.8
OLD RECORD OF 25.6 SET IN 2023
RECORDS IN THIS AREA HAVE BEEN KEPT SINCE 1919
NOTE: THE TEMPERATURE RECORDS REPORTED HERE HAVE BEEN DERIVED FROM A
SELECTION OF HISTORICAL STATIONS IN EACH GEOGRAPHIC AREA THAT WERE
ACTIVE DURING THE PERIOD OF RECORD.
SHOWERS AND THUNDERSTORMS ASSOCIATED WITH A STALLED FRONT SOAKED
PARTS OF NORTHWESTERN AND FAR NORTHERN ONTARIO SATURDAY.
FOLLOWING ARE OBSERVED RAINFALL AMOUNTS AT SELECT LOCATIONS ACROSS
NORTHWESTERN AND FAR NORTHERN ONTARIO AS OF 11.00 A.M. EDT.
LOCATION AND RAINFALL AMOUNT IN MILLIMETRES
KENORA 40.1
PICKLE LAKE 33.3
8 KM N KENORA 33.0 *
RAWSON LAKE 25.9
SIOUX LOOKOUT 19.4
EAR FALLS 18.5
LANSDOWNE HOUSE 18.3
DRYDEN 17.4
* DENOTES VOLUNTEER SUCH AS COMMUNITY COLLABORATIVE RAIN HAIL AND
SNOW NETWORK
PLEASE NOTE THAT THIS SUMMARY MAY CONTAIN PRELIMINARY OR UNOFFICIAL
INFORMATION AND DOES NOT CONSTITUTE A COMPLETE OR FINAL REPORT.
END/OSPC
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