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Galesburg weather

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Galesburg weather alerts and warnings

active National Weather Service watches, warnings and advisories

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Galesburg weather in numbers

from 30 years of measured normals

Galesburg swings 64°F across the year, from 84°F highs in June to 20°F lows in January, and April is usually the wettest month in a year that brings about 35 in of precipitation.

Warmest month
June
84°F average high
Coldest month
January
20°F average low
Wettest month
April
35 in a year
Below freezing
3 months
January, February and December
Comfortable
3 months
May, September and October
Residents
31,000
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The weather map: all three models at once

NWS, American, European side by side around Galesburg and nearby towns.Live rain radar →
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Galesburg hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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Galesburg 10-day forecast, out to 14 days

where the models agree, and where they split

Galesburg, Illinois (IL) is at its warmest in Jun (average highs near 84°F) and coldest in Jan (lows around 20°F), with roughly 35 in of precipitation across the year. Below, compare what NWS, American, European forecast for Galesburg 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.

Galesburg climate by month

average daytime high and overnight low across a typical year
Jan
33°
20°
Feb
46°
27°
Mar
51°
33°
Apr
62°
42°
May
76°
55°
Jun
84°
64°
Jul
83°
65°
Aug
82°
65°
Sep
78°
60°
Oct
67°
49°
Nov
51°
36°
Dec
41°
29°

Which forecast is most accurate in Galesburg?

CheckWeather Score, graded against the weather that actually happened
ProviderCheckWeather-scoreTempWindRainRun by
European logo
European ★ Best
93
/100rank #1
94±0.6°F96±1.1 mph8994% hitECMWF - European Centre for Medium-Range Weather ForecastsReading, United Kingdom
American logo
American
78
/100rank #2
88±1.2°F95±1.5 mph5374% 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.

What do you think of the forecasts?

your vote counts

The accuracy above is the measured record. This is your opinion: which forecast service do you trust most in United States? Give each 1 to 5 stars.

NWSNational Blend (NBM)
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AmericanNOAA GFS
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EuropeanECMWF
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One vote per service. Anonymous: we store no personal data, only a one-way hash of your connection for a day to stop double votes.

Common questions

What's the weather in Galesburg today?
On this page we show what NWS, American, European each forecast for Galesburg 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 Galesburg today or tomorrow?
Check the hourly strip and 7-day forecast above. We compare rain from NWS, American, European for Galesburg 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 Galesburg?
Over the last 30 days, the European model has been the most accurate for Galesburg (CheckWeather Score 93/100), ahead of the American at 78. We grade every model against the recorded weather. See the US accuracy scoreboard for the full method.
What is the warmest month in Galesburg?
June is typically the warmest month in Galesburg, with average highs around 84°F.
How cold does Galesburg get?
The coldest month in Galesburg is January, when overnight lows average about 20°F.
How much rain does Galesburg get?
Galesburg sees roughly 35 in of precipitation a year, with April usually the wettest month.

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