Skip to main content
Every US forecast, compared
checkweather.io
CheckWeather USOswego

Oswego weather

Loading live data…

The weather map: all three models at once

NWS, American, European side by side around Oswego and nearby towns.Live rain radar →
Loading the three model maps…

Next 14 hours

consensus of the three models

14-day forecast

where the models agree, and where they split

Oswego, IL is at its warmest in Jun (average highs near 83°F) and coldest in Jan (lows around 21°F), with roughly 40 in of precipitation across the year. Below, compare what NWS, American, European forecast for Oswego 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.

Oswego climate by month

average daytime high and overnight low across a typical year
Jan
33°
21°
Feb
45°
26°
Mar
50°
31°
Apr
61°
40°
May
73°
51°
Jun
83°
61°
Jul
83°
64°
Aug
83°
64°
Sep
77°
59°
Oct
66°
48°
Nov
50°
36°
Dec
40°
28°

Which forecast is most accurate in Oswego?

CheckWeather Score — graded against the weather that actually happened
ProviderCheckWeather Score🌡 Temp💨 Wind🌧 RainRun by
European logo
European ★ Best
95
/100rank #1
93±0.7°F97±1.1 mph9597% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
72
/100rank #2
84±1.6°F96±1.3 mph4268% 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 Oswego today?
On this page we show what NWS, American, European each forecast for Oswego 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 Oswego today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Oswego 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 Oswego?
Over the last 30 days, the European model has been the most accurate for Oswego (CheckWeather Score 95/100), ahead of the American at 72. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Oswego?
June is typically the warmest month in Oswego, with average highs around 83°F.
How cold does Oswego get?
The coldest month in Oswego is January, when overnight lows average about 21°F.
How much rain does Oswego get?
Oswego sees roughly 40 in of precipitation a year, with July usually the wettest month.

Nearby

More US weather