Env. Canada, European, American side by side around St. Thomas and nearby towns.Live rain radar →
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Next 14 hours
consensus of the three models
7-day forecast
where the models agree, and where they split
St. Thomas, 08 is at its warmest in Jul (average highs near 26°C) and coldest in Feb (lows around -5°C), with roughly 1079 mm of precipitation across the year. Below, compare what Env. Canada, European, American forecast for St. Thomas right now, and see exactly where they disagree.
St. Thomas climate by month
average daytime high and overnight low across a typical year
Jan
2°
-4°
Feb
5°
-5°
Mar
7°
-2°
Apr
14°
4°
May
20°
9°
Jun
24°
14°
Jul
26°
17°
Aug
25°
16°
Sep
23°
14°
Oct
16°
8°
Nov
9°
2°
Dec
4°
-2°
Common questions
What's the weather in St. Thomas today?
On this page we show what Env. Canada, European, American each forecast for St. Thomas today, side by side and updated live. When all three agree the forecast is reliable; when they split, we flag it so you know the day is genuinely less certain.
Will it rain in St. Thomas today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from Env. Canada, European, American for St. Thomas and flag the days where the models disagree on whether showers actually arrive, which is exactly when a single app can catch you out.
Which forecast is most accurate for St. Thomas?
No single model is always right. Env. Canada, European, American each run their own physics, so we line all three up: when they agree the St. Thomas forecast is reliable, and when they split you should expect surprises. See our tested CA accuracy scoreboard for how the models compare.
What is the warmest month in St. Thomas?
Jul is typically the warmest month in St. Thomas, with average highs around 26°C.
How cold does St. Thomas get?
The coldest month in St. Thomas is Feb, when overnight lows average about -5°C.
How much rain does St. Thomas get?
St. Thomas sees roughly 1079 mm of precipitation a year, with Apr usually the wettest month.
The forecasts Canadians check
Environment Canada runs the national GEM model as open data, so it sits right in the comparison above. The Weather Network and AccuWeather keep theirs closed, so we link you to them.