Current Conditions - Guelph, ON

Latest Weather News - Guelph

• Fall foliage to be more ‘vibrant,’ last longer this year in Ontario

  Fall 2025 isn't officially here yet but the season's foliage is arriving earlier than usual and experts predict it will be even more beautiful in some areas.

  Weather

  Sep 20
• ‘A spooky season’: Drought and heat reducing pumpkin yield in Canadian farms

  Drought and extreme heat are cutting into the size and supply of pumpkins that are usually carved into jack-o’-lanterns for Halloween or frozen and canned for food.

  Environment

  Sep 13
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• Southern Ontario in for wind gusts up to 90 km/h Friday, Environment Canada warns

  Environment Canada has issued a special weather statement for a swath of southern Ontario indicating strong winds will be felt on Friday.

  Weather

  Sep 5
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• Fall-like weather heads for Ontario, breaking summer heat

  It'll be a bit of a break from the summer heat as a low-pressure system brings fall-like weather to much of southern Ontario early next week.

  Weather

  Aug 22
• ‘We are in a heat crisis’: Province should track deaths, ensure school AC, group says

  A network of Ontario civil society groups is calling on the province to develop an extreme-heat awareness program to better address the dangers of sweltering temperatures.

  Weather

  Aug 18
• Heat warning issued for large part of Ontario, Quebec

  Daytime highs are expected to reach 35 C in parts of Ontario and Quebec, according to a heat warning from Environment Canada. Temperatures will cool mid-week, the agency says.

  Weather

  Aug 9
• Southern Ontario set to bake under another heat wave, humidex to go over 40 C

  A fresh warning issued by Environment Canada on Friday afternoon predicts temperatures will begin to rise on Saturday and remain high until the middle of next week.

  Weather

  Aug 8
• Eastern Canada faces widespread drought conditions after dry start to summer

  Many cities including Toronto, Halifax, and St. John's are experiencing 50 per cent or less of normal rainfall since the start of meteorological summer on June 1st.

  Environment

  Aug 8
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• Wildfire smoke stays over southern Ontario, prompting air quality warnings

  On Monday morning, Environment Canada issued a special air quality statement for the vast majority of southern Ontario, predicting "poor air quality" as a result of forest fires.

  Weather

  Aug 4
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• Prairies wildfire smoke prompts special air quality statement for southern Ontario

  Environment Canada says smoke from forest fires can cause reduced air quality and visibility that can fluctuate throughout the day.

  Weather

  Jul 31
• Caution advised due to bacteria levels at some Ontario beaches as heat persists

  Toronto Public Health is advising caution at the popular Centre Island beach on the Toronto Islands, after water samples showed elevated E.coli bacteria counts.

  Canada

  Jul 29
• 3 tornadoes touched down in Ontario over the weekend: Researchers

  Three tornadoes touched down in Ontario on the coastline of Lake Huron over the weekend, according to the Northern Tornadoes Project.

  Weather

  Jul 29
• Southwestern Ontario blasted by summer heat waves

  Parts of Ontario have been feeling the heat this summer, with the southwestern part of the province experiencing its fourth heat wave of the summer.

  Weather

  Jul 28
• ‘It really gets to you’: Residents try to beat the heat in Toronto, southern Ontario

  The Greater Toronto Area and other parts of southern Ontario are under a heat warning as  temperatures are expected to reach up to 35 C today.

  Weather

  Jul 24
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• Environment Canada issues heat warning for southern Ontario starting Thursday

  Environment Canada issues heat warning for southern Ontario with temps up to 35 °C, humidex near 44. Little relief expected overnight; residents urged to stay cool.

  Weather

  Jul 23
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• Smog episodes accumulate, have long-term health effects: doctors

  Much of Central Canada was placed under special air quality statements amid smoke from wildfires, as Environment Canada advised residents to limit time outdoors.

  Weather

  Jul 16
• Environment Canada warns of heat and thunderstorms in southern Ontario

  Environment and Climate Change Canada has issued heat warnings and thunderstorm watches for parts of the province, as well as a thunderstorm warning for Stirling, Tweed and Madoc. 

  Weather

  Jul 13
• Heat warning issued for southern Ontario, expected to last into Thursday

  The alert issued Friday morning says daytime highs for areas between Windsor and Cornwall are expected to range from 29 C to 32 C.

  Weather

  Jul 11
• ‘Pay attention’: Why Southern Ontario is the tornado hotspot of Canada

  Summer in Ontario may bring with it warm weather, but last week's tornado in Lucan is a reminder that it’s also tornado season.

  Weather

  Jul 9
• Heat warning for southern Ontario, Quebec set to end tonight

  Southern Ontario is facing another heat wave with temperatures near 35°C and humidex values hitting 40, prompting warnings and expanded cooling measures in Toronto.

  Weather

  Jul 6
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• Heat warning issued for large portion of southern Ontario

  Environment Canada has issued a heat warning for Saturday and Sunday for an area that stretches from Peterborough to Windsor and includes Toronto, Hamilton, London and Barrie.

  Weather

  Jul 4
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• Video shows moment powerful lightning strikes Ontario school during grad ceremony

  A graduation ceremony being held at London South Collegiate Institute was interrupted Tuesday night after lightning struck and damaged the building it was being held in.

  Weather

  Jun 25
• Heat dome over Ontario, Quebec breaks temperature records, more humidity in store

  Toronto set a new June 23 temperature record when the mercury hit 36 degrees.

  Weather

  Jun 24
• ‘Heat dome’ over Ontario and Quebec causing wild weather across much of Canada

  Environment Canada says scorching temperatures over the east are causing below-normal temperatures in other regions, leading to wet snow and heavy rain warnings in the West.

  Canada

  Jun 22