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Chatham Weather

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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the True North Brief Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.

☀️29°C
Clear skyChathamFeels like 31° · Wind 9 km/h · Humidity 57%
UV 7 HighSunrise 06:39Sunset 20:02
Today☁️35°19°💧22%
Fri☁️31°21°💧91%
Sat⛈️31°20°💧91%
Sun30°18°💧7%
Mon☁️30°16°💧3%
Tue🌦️31°21°💧14%
Wed🌧️31°20°💧29%

Live data from Open-Meteo · updates automatically ·

Based on the live forecast above, Chatham is currently experiencing conditions typical for its southwestern Ontario location. Expect a temperature in the low-to-mid range shown, with wind chill making it feel cooler; the primary factor today will be the wind speed and any precipitation indicated.

What is the forecast for Chatham today and this week?

For today, the live forecast shows a daytime high near the indicated value, with overnight lows dropping significantly. Looking at the chatham weather 14 day and weather in chatham-kent 10 days outlooks, a pattern of lake-effect cloud and periodic snow or rain showers is common for this region in winter. The hourly breakdown in the chatham weather hourly data will show the most precise timing for any precipitation or wind shifts.

How does Chatham’s location affect its weather?

Chatham, situated in the heart of the Chatham-Kent municipality, is influenced by its proximity to Lake Erie and Lake St. Clair. This creates a more moderate climate than inland areas but also brings chatham weather radar hourly alerts for lake-effect snow bands. The flat agricultural terrain allows wind to be a persistent factor, so checking the chatham weather tomorrow wind speeds is important for travel on Highway 401.

Wind ChillOften 5–10°C colder than the air temperature in winter.
SnowfallAverage annual snowfall is around 110 cm, with lake-effect events.
Growing SeasonOne of Ontario’s longest, from late April to mid-October.
Severe StormsPart of “Tornado Alley” in Ontario; summer storms can be intense.
What is the typical 30-day outlook for Chatham?

The chatham weather 30 day forecast is a general trend guide, not a precise prediction. For Chatham in winter, expect a mix of cold, dry periods with occasional thaws and lake-effect snow events. Spring brings gradual warming but frequent rain.

Is there a monthly climate summary for Chatham?

The chatham weather monthly averages show January as the coldest month (average high near -1°C) and July as the warmest (average high near 27°C). Precipitation is fairly evenly distributed year-round, with slightly more in summer from thunderstorms.

Where can I find live radar for Chatham?

For real-time tracking, the chatham weather radar hourly loop is available from Environment Canada. This is the best tool for monitoring the approach of rain, snow, or severe thunderstorms moving in from the Great Lakes.

For broader conditions across the country, visit our Canada weather hub. For comparisons, see the Toronto weather or Ottawa weather pages. Stay informed on any watches or warnings at our weather warning page.