Climate Galesburg - Illinois
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 30 | 35 | 48 | 62 | 72 | 81 |
| Average low in ºF Av. low Lo | 13 | 17 | 28 | 40 | 51 | 61 |
| Av. precipitation in inch Av. precip. Pre. | 1.51 | 1.63 | 2.76 | 3.72 | 4.45 | 4.30 |
| Av. snowfall in inch Snowfall Sn | 8 | 6 | 2 | 0 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 84 | 82 | 75 | 63 | 48 | 34 |
| Average low in ºF Av. low Lo | 65 | 63 | 54 | 42 | 30 | 18 |
| Av. precipitation in inch Av. precip. Pre. | 4.38 | 3.97 | 3.47 | 2.75 | 2.87 | 2.27 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 1 | 6 |
What is the average weather in Galesburg, Illinois?
Galesburg experiences a humid continental climate, marked by very strong seasonal temperature contrasts. Summers are warm and fairly wet, with precipitation peaking in May. Winters are cold and bring regular snowfall, with January typically being the driest month. Precipitation is spread relatively evenly throughout the year, with winter moisture often arriving as snow.
Galesburg Climate Graph - Illinois Climate Chart
Daily normals Galesburg - Illinois - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 31.1 | 16.1 | 0.06 | 0.06 | 0.30 | 0.30 |
| 2 Jan | 30.9 | 15.9 | 0.12 | 0.12 | 0.60 | 0.60 |
| 3 Jan | 30.8 | 15.6 | 0.17 | 0.17 | 0.80 | 0.80 |
| 4 Jan | 30.6 | 15.4 | 0.23 | 0.23 | 1.10 | 1.10 |
| 5 Jan | 30.5 | 15.2 | 0.29 | 0.29 | 1.40 | 1.40 |
| 6 Jan | 30.3 | 15.0 | 0.35 | 0.35 | 1.80 | 1.80 |
| 7 Jan | 30.2 | 14.8 | 0.41 | 0.41 | 2.10 | 2.10 |
| 8 Jan | 30.1 | 14.5 | 0.47 | 0.47 | 2.40 | 2.40 |
| 9 Jan | 30.0 | 14.3 | 0.53 | 0.53 | 2.80 | 2.80 |
| 10 Jan | 29.9 | 14.2 | 0.59 | 0.59 | 3.10 | 3.10 |
| 11 Jan | 29.8 | 14.0 | 0.65 | 0.65 | 3.40 | 3.40 |
| 12 Jan | 29.7 | 13.8 | 0.71 | 0.71 | 3.70 | 3.70 |
| 13 Jan | 29.7 | 13.7 | 0.77 | 0.77 | 4.00 | 4.00 |
| 14 Jan | 29.6 | 13.5 | 0.82 | 0.82 | 4.30 | 4.30 |
| 15 Jan | 29.6 | 13.4 | 0.88 | 0.88 | 4.60 | 4.60 |
| 16 Jan | 29.6 | 13.3 | 0.94 | 0.94 | 4.90 | 4.90 |
| 17 Jan | 29.5 | 13.1 | 0.99 | 0.99 | 5.20 | 5.20 |
| 18 Jan | 29.5 | 13.1 | 1.05 | 1.05 | 5.60 | 5.60 |
| 19 Jan | 29.5 | 13.0 | 1.10 | 1.10 | 5.90 | 5.90 |
| 20 Jan | 29.5 | 12.9 | 1.15 | 1.15 | 6.20 | 6.20 |
| 21 Jan | 29.6 | 12.9 | 1.20 | 1.20 | 6.40 | 6.40 |
| 22 Jan | 29.6 | 12.9 | 1.25 | 1.25 | 6.70 | 6.70 |
| 23 Jan | 29.7 | 12.8 | 1.30 | 1.30 | 6.90 | 6.90 |
| 24 Jan | 29.7 | 12.9 | 1.36 | 1.36 | 7.20 | 7.20 |
| 25 Jan | 29.8 | 12.9 | 1.41 | 1.41 | 7.50 | 7.50 |
| 26 Jan | 29.9 | 12.9 | 1.46 | 1.46 | 7.70 | 7.70 |
| 27 Jan | 30.0 | 13.0 | 1.50 | 1.50 | 8.00 | 8.00 |
| 28 Jan | 30.1 | 13.1 | 1.55 | 1.55 | 8.30 | 8.30 |
| 29 Jan | 30.2 | 13.2 | 1.60 | 1.60 | 8.50 | 8.50 |
| 30 Jan | 30.4 | 13.3 | 1.64 | 1.64 | 8.80 | 8.80 |
| 31 Jan | 30.5 | 13.4 | 1.69 | 1.69 | 9.00 | 9.00 |
Weather history Galesburg - August 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Aug | 78.1 | 64.9 | 1.35 | - | - |
| 02 Aug | 70.0 | 63.0 | 0.75 | 0.00 | 0.0 |
| 03 Aug | 80.1 | 61.0 | 0.00 | 0.00 | 0.0 |
| 04 Aug | 84.0 | 63.0 | 0.00 | 0.00 | 0.0 |
| 05 Aug | 86.0 | 68.0 | T | 0.00 | 0.0 |
| 06 Aug | 75.0 | 66.0 | 0.28 | 0.00 | 0.0 |
| 07 Aug | 81.0 | 66.0 | 0.00 | 0.00 | 0.0 |
| 08 Aug | 84.0 | 66.9 | 0.00 | 0.00 | 0.0 |
| 09 Aug | 82.0 | 66.9 | 0.00 | 0.00 | 0.0 |
| 10 Aug | 87.1 | 70.0 | 0.00 | - | - |
| 11 Aug | 89.1 | 75.0 | 0.00 | - | - |
| 12 Aug | - | - | - | - | - |
| 13 Aug | - | - | - | - | - |
| 14 Aug | - | - | - | - | - |
| 15 Aug | - | - | - | - | - |
| 16 Aug | - | - | - | - | - |
| 17 Aug | - | - | - | - | - |
| 18 Aug | - | - | - | - | - |
| 19 Aug | - | - | - | - | - |
| 20 Aug | - | - | - | - | - |
| 21 Aug | - | - | - | - | - |
| 22 Aug | - | - | - | - | - |
| 23 Aug | - | - | - | - | - |
| 24 Aug | - | - | - | - | - |
| 25 Aug | - | - | - | - | - |
| 26 Aug | - | - | - | - | - |
| 27 Aug | - | - | - | - | - |
| 28 Aug | - | - | - | - | - |
| 29 Aug | - | - | - | - | - |
| 30 Aug | - | - | - | - | - |
| 31 Aug | - | - | - | - | - |
Past weather Galesburg
| Aug 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 81.5 ºF | 30 ºF | |
| Average low temperature Av. low temp. | 66.4 ºF | 13 ºF | |
| Total precipitation Total precip. | 2.38 inch | 1.51 inch | |
| Total snowfall Total snowfall | - inch | 8 inch | |
| Highest max temperature Highest max temp. | 89.1 ºF | - | |
| Lowest max temperature Lowest max temp. | 70.0 ºF | - | |
| Highest min temperature Highest min temp. | 75.0 ºF | - | |
| Lowest min temperature Lowest min temp. | 61.0 ºF | - | |
Past weather August 2026 incomplete - Missing data
Geo Galesburg - Illinois
| Country | United States | |
|---|---|---|
| State | Illinois | |
| County | Knox | |
| City | Galesburg | |
| Zip Code | 61401 | |
| Longitude | -90.43 dec. degr. | |
| Latitude | 40.94 dec. degr. | |
| Altitude - Elevation | 761ft | |
| ICAO | - | |
| IATA | - |
Date and Time Galesburg - Illinois
| Local Time | 02:41 AM | |
|---|---|---|
| Sunrise | 06:09 AM | |
| Sunset | 08:03 PM | |
| Day/Night | Night | |
| Timezone | Central Daylight Time | |
| Timezone DB | America - Chicago |
Map of Galesburg - Illinois
USGS National Map — Open interactive map
Galesburg weather averages
| Annual high temperature | 59ºF |
| Annual low temperature | 40ºF |
| Average annual precip. | 38.08 inch |
| Av. annual snowfall | 23 inch |
Station Data
Monthly averages Galesburg
Longitude: -90.4311, Latitude: 40.938
Average weather Galesburg, IL - 61401
Monthly: 1991-2020 normals
History: 2007-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...