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South Windsor weather

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The weather map: all three models at once

NWS, American, European side by side around South Windsor and nearby towns.Live rain radar →
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Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split

South Windsor, CT is at its warmest in Jul (average highs near 85°F) and coldest in Feb (lows around 25°F), with roughly 51 in of precipitation across the year. Below, compare what NWS, American, European forecast for South Windsor right now, and see exactly where they disagree.

We grade every model against the weather that actually happened, so you can see which forecast model is most accurate in United States before you trust any single number.

South Windsor climate by month

average daytime high and overnight low across a typical year
Jan
41°
27°
Feb
44°
25°
Mar
50°
32°
Apr
62°
40°
May
72°
49°
Jun
80°
59°
Jul
85°
67°
Aug
80°
63°
Sep
75°
57°
Oct
66°
47°
Nov
52°
36°
Dec
43°
29°

Which forecast is most accurate in the US?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
89
/100rank #1
87±1.3°F96±1.2 mph8592% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
73
/100rank #2
81±1.9°F93±2.2 mph4972% hitNOAA / NCEP (United States)College Park, Maryland, USA

The CheckWeather Score blends temperature, wind and rain accuracy — each measured against ERA5 (the recorded weather) over the last 30 days across 1999 cities. Lower error means a higher score. See which forecast model is most accurate in United States, how we measure forecast accuracy, or which model each weather app uses.

Common questions

What's the weather in South Windsor today?
On this page we show what NWS, American, European each forecast for South Windsor 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 South Windsor today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for South Windsor 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 South Windsor?
No single model is always right. NWS, American, European each run their own physics, so we line all three up: when they agree the South Windsor forecast is reliable, and when they split you should expect surprises. See our tested US accuracy scoreboard for how the models compare.
What is the warmest month in South Windsor?
July is typically the warmest month in South Windsor, with average highs around 85°F.
How cold does South Windsor get?
The coldest month in South Windsor is February, when overnight lows average about 25°F.
How much rain does South Windsor get?
South Windsor sees roughly 51 in of precipitation a year, with March usually the wettest month.

Nearby

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