All time hottest September temperature for Canada set today at Ashcroft BC with a sizzling 40.8C. Beats previous record of 40.0C set in Morden MB (Sep 1906), Lost River SK (Sep 1940) and Lytton BC (Sep 2025) (TWN graphic)

Even hotter than yesterday in Eastern Canada! All-time records were set at several stations, and the all-time PEI record was shattered with 38.1° at Maple Plains! 36.7° in Badger, NL tied August record for NL and all-time record for the island. 38.6° in Miramichi is 0.8° below NB all-time record. ♨️

How are we doing for the first half of July in terms of temperature? Top 5 to Top 10 coolest in parts of Texas, but much warmer than normal across much of the northern tier.

Areas of heavier rainfall across Niagara over past 24 hours brought 25-50 mm over localized areas. Otherwise only 5-10 mm between heavier bands with less than 5 mm west of Grimsby.

One lone band of cumulus clouds over Niagara nicely marks convergent zone between Lake Erie and Lake Ontario lake breezes this afternoon

Quite the soaker through the Cambridge area last night.. upwards of 75-100 mm of rain reported, much of it falling between 10 pm and 1 am.

Area of showers over Lake Ontario will clip north St Catharines into NOTL over the next hour. Heads up if your boating in this area for some gusty showers moving in.

Quite the soaker across parts of Niagara this morning. Heavier cells early this morning gave 30-50 mm of rain through the Niagara Falls-Chippawa area in just over an hour. (Radar image from 530 am)

Max temps across Niagara today (Jun 24): Vineland: 35.6C Grimsby: 35.5C St Catharines: 35.4C Beamsville: 35C Niagara Falls: 33.9C Welland: 33.1C Port Colborne: 29C These are the hottest temperatures recorded in Niagara since July 2020.

Just popped another degree...likely the final one for the day. Boston reaches a June record of 102F. #wbz

33-36C temps over much of Niagara this afternoon.. except 28C near Lake Erie. Last day of the really hot stuff before less oppressive conditions Wednesday

One more day of oppressive heat and humidity over Niagara today with highs of 35C over north Niagara to 28C near Lake Erie. A slight chance of showers or thunderstorms later today into tonight then not as hot Wednesday

One more day of oppressive heat and humidity over Niagara Tuesday with highs of 32C over south Niagara to 35C north. A chance of showers or thunderstorms Tue pm/night then not as hot Wednesday

Max temps across Niagara today (Jun 23) through 5 pm: Grimsby: 36.0C Vineland: 35.2C St Catharines: 34.5C Niagara Falls: 33.3C Welland: 32.4C Port Colborne: 28C

A maximum of 36.0C at Toronto Pearson airport as of 5 pm. This is the 2nd hottest June temperature on record for Toronto, surpassed only by 36.7C on Jun 30 1964. The 36.0C is the hottest day in Toronto since at least Jul 13 2016 (also 36.0)

2 pm temps across Niagara (Jun 23): - Grimsby: 35C (unofficial) - Vineland: 34.3C - St Catharines: 33.8C - Niagara Falls: 33.3C - Welland: 31.9C - Port Colborne: 28C Humidex values ranging from 40-44. Official 2 pm hot spot in Ontario is Toronto Pearson at 34.8C.

St Catharines already up to 29C as of 9 am. Likely hitting a record high 35C this afternoon. Recall that two days ago Env Canada was forecasting a *high* of only 27C for St Catharines for today. Faulty forecast algorithm leading to poor temperature forecasts in Niagara.

Today’s hot spots in Ontario via official ECCC network: - Delhi: 35.3C - Hamilton RBG: 35.3C - Toronto Pearson 34.8C Both Delhi and Hamilton RBG set new record highs for the date (Jun 22). Toronto Pearson was just short of today’s record high of 35.5C in 2022.

Maximum temperatures across Niagara today (Jun 22) as of 5 pm: Grimsby: 35.5C Beamsville: 35C Vineland: 33.9C St Catharines: 33.6C Queenston: 33C Niagara Falls: 32.8C Welland: 31.4C Port Colborne: 28C

Lake Erie lake breeze has pushed up into northern Niagara as of 2 pm marked by edge of CU field. That has stabilized temperatures in the 27-30C range over south Niagara while 32-35C heat continues over north Niagara

My forecast highs across Niagara Sunday through Tuesday. Hottest temps will across northern Niagara with highs of 33-36C each day. A bit cooler over south Niagara with SW flow off Lake Erie giving temps of 27-32C. Humidex values of 35-45C each day. Stay cool!

Quite the heatwave coming up for Niagara and GTA. Highs of 32-35C Sunday-Tuesday with peak humidex values in the 40-45C range. Likely hottest stretch of June weather in Niagara since June 2012.

Rainfall accumulation map based on personal weather station observations in St Catharines area. Most of this fell between 2 and 330 pm.

Quite the deluge over St Catharines over the past hour. Generally 25-50 mm over central and northern parts of the city.. much less to the south

Rain has finally ended in Niagara after 2 straight days of steady rainfall. 2 day totals of 40-70 mm across Niagara, Hamilton and Haldimand areas. #ONstorm

UPDATED rainfall totals across Niagara, Hamilton and Haldimand areas as of 5 pm May 22, since yesterday. Generally 30-60 mm of rain has fallen across the area.. heaviest amounts over west Niagara, Hamilton and Haldimand areas where 50-70 mm of rain has been reported. Creeks running high and fast.

MRMS radar accumulation product estimates over 70 mm of rain has fallen since yesterday in downtown Hamilton.. corroborated by personal weather sites in the area. Likely some flooding issues there..

Updated rainfall totals as of noon across Niagara and Hamilton/Haldimand areas. Generally 30-50 mm of rain across Niagara so far with 45-60 mm over west Niagara/Haldimand into Hamilton areas. Light rain continues this afternoon into tonight with another 5-10 mm possible before tapering off Friday

Incredible temperatures in the Red River Valley and Interlake yesterday... Reaching almost 38°C at some stations. Winnipeg's 37.0°C was the earliest 37°C, beating May 22, 1980.

Another day of record early heat over srn MB (May 13). Winnipeg's 37.0C is the earliest they've ever hit that temperature and ties May 22 1980 as 2nd hottest May day on record. Heat was accompanied by very low humidity (as low as 13%) and winds gusting to 70 km/h.. extreme fire weather conditions

Today is now the third hottest May day on record in Winnipeg with a high of 36.9 C up to 3 PM. We aren't far off the records for hottest or second hottest days: Hottest May temperatures in Wpg: 1. May 30, 1934: 37.8 C 2. May 22, 1980: 37.0C 3. May 13, 2025: 36.9 C (up to 3PM)

Canada.. the land of extremes. While southern MB is dealing with extreme heat and out of control wildfires (see image showing smoke plumes from fires over SE MB), Goose Bay NL was digging out of a record 40 cm snowfall on May 11! Crazy contrast for mid May!

Crazy early season heat along the Red River valley in ND/MN and southern MB. Up to 100F (38C) in Hallock MN, 99F (37C) in Grand Forks, ND and 37.0C (99F) in Emerson MB as of 240 pm local time. All record highs for May 11.

24 hr precip totals (mm) across southern Ontario via ECCC and COCORAHS networks. Quite the soaker over portions of SW ON with 50-80 mm reported from Sarnia through Woodstock and Waterloo to Brantford areas. #ONstorm

24 hr precip totals (mm) across Niagara area via NPCA, GRCA, ECCC and COCORAHS networks. Generally 40-60 mm over north Niagara with 50-75 mm in Hamilton/Brantford area. #ONstorm

March 2025 was warmer than normal for most of #Canada, except for a region extending from the NWT to Labrador, which was colder than normal. The strongest anomalies were in Northern Nunavut; up to +6.5°C for Pond Inlet.

The power outages we are seeing currently coincide perfectly with the greatest expected accretion through this evening on the Canadian HRDPS across southcentral, central, northeastern and eastern #Ontario #ONstorm #weather #onwx

Snowdepth readings via ECCC sites as of 7 am this morning. After the weekend storm dumped 20-40 cm of snow across srn ON, this is the deepest snowpack we’ve seen here in years. At 50 cm, Toronto Pearson has deepest snowdepth since famous “send in the army” event of Jan 1999 (67 cm depth)

Unofficial storm snowfall totals (cm) over the weekend across srn ON via ECCC sites along with snow depth readings as of 7 pm Feb 16. Some snowfall readings may be underdone due to blowing/drifting snow at snow sensors.

A few snowfall reports as of 2 pm: (not official) Hamilton Mt Hope: 29 cm Toronto Pearson: 24 cm Grimsby: 20 cm St Catharines: 15 cm (est) Welland: 13 cm Ft Erie: 10 cm Big snowfall gradient across Niagara due to freezing rain over SE Niagara this morning

Snowfall totals to 7 am across srn ON as well as snow on ground (SOG) measurements. Data via ECCC sites. Snowfall at most sites estimated from change in SOG readings

Snowdepth readings across srn ON as of Feb 14 2025 via ECCC volunteer and official sites. This is the deepest snowpack in several years, and it’s only going to increase with another significant snowfall on the way this weekend!

Gusting 100 kmh in St Catharines as of 6 pm

Sun sets on a very windy day in St Catharines ON. Gusts of 85-90 kmh this afternoon over Niagara.

A frigid start to your Wednesday across Niagara with lows of -20C or lower.. rare for Niagara. Coldest readings here since at least Jan 2022. Cold spot was Welland at -26.0C, just shy of record low for Jan 22 of -26.5C in 2000.

Band of lake effect snow off Lake Erie has pushed into south Niagara. Heavy snow and poor visibility from Long Beach through Port Colborne to Fort Erie. 10-15 cm of snow possible in these areas this afternoon

December 2024 was very warm across much of Canada, especially in Northern QC. Slightly above normal in the Maritimes and Southern ON/QC. Slightly below normal near the Beaufort Sea coast.

Happy New Year from Niagara!

24 hr rainfall totals (mm) across Niagara/Hamilton area as of 7 am this morning. Data via NPCA, GRCA, ECCC and COOL networks.

Peak wind gusts recorded as of 7 am this morning across Niagara area.. Buffalo: 102 kmh Niagara Falls NY: 94 kmh St Catharines: 91 kmh Vineland: 78 kmh Hamilton: 76 kmh No wind readings from Port Colborne, but likely in the 90-100 kmh range. Reports of scattered power outages in Fort Erie.