Climate Rantoul - Illinois
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 34 | 38 | 50 | 63 | 74 | 84 |
| Average low in ºF Av. low Lo | 16 | 20 | 30 | 40 | 51 | 62 |
| Av. precipitation in inch Av. precip. Pre. | 2.07 | 2.01 | 2.98 | 3.84 | 4.36 | 3.94 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 87 | 85 | 79 | 66 | 51 | 38 |
| Average low in ºF Av. low Lo | 65 | 62 | 54 | 42 | 31 | 21 |
| Av. precipitation in inch Av. precip. Pre. | 4.59 | 4.05 | 3.09 | 3.32 | 0.00 | 2.59 |
What is the average weather in Rantoul, Illinois?
Rantoul experiences a humid continental climate, marked by very strong seasonal temperature swings. Summers are hot, while winters are cold. The area is fairly wet, with precipitation spread relatively evenly throughout the year, though summer tends to be wetter.
Rantoul Climate Graph - Illinois Climate Chart
Daily normals Rantoul - Illinois - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 33.8 | 17.3 | 0.08 | 0.08 | 0.00 | 0.00 |
| 2 Jan | 33.7 | 17.1 | 0.16 | 0.16 | 0.00 | 0.00 |
| 3 Jan | 33.6 | 17.0 | 0.24 | 0.24 | 0.00 | 0.00 |
| 4 Jan | 33.5 | 16.9 | 0.31 | 0.31 | 0.00 | 0.00 |
| 5 Jan | 33.4 | 16.8 | 0.39 | 0.39 | 0.00 | 0.00 |
| 6 Jan | 33.4 | 16.6 | 0.47 | 0.47 | 0.00 | 0.00 |
| 7 Jan | 33.3 | 16.5 | 0.55 | 0.55 | 0.00 | 0.00 |
| 8 Jan | 33.3 | 16.4 | 0.63 | 0.63 | 0.00 | 0.00 |
| 9 Jan | 33.3 | 16.3 | 0.71 | 0.71 | 0.00 | 0.00 |
| 10 Jan | 33.2 | 16.2 | 0.75 | 0.75 | 0.00 | 0.00 |
| 11 Jan | 33.2 | 16.1 | 0.83 | 0.83 | 0.00 | 0.00 |
| 12 Jan | 33.2 | 16.0 | 0.87 | 0.87 | 0.00 | 0.00 |
| 13 Jan | 33.2 | 15.9 | 0.94 | 0.94 | 0.00 | 0.00 |
| 14 Jan | 33.2 | 15.9 | 0.98 | 0.98 | 0.00 | 0.00 |
| 15 Jan | 33.2 | 15.8 | 1.06 | 1.06 | 0.00 | 0.00 |
| 16 Jan | 33.3 | 15.7 | 1.14 | 1.14 | 0.00 | 0.00 |
| 17 Jan | 33.3 | 15.7 | 1.18 | 1.18 | 0.00 | 0.00 |
| 18 Jan | 33.3 | 15.7 | 1.26 | 1.26 | 0.00 | 0.00 |
| 19 Jan | 33.4 | 15.6 | 1.34 | 1.34 | 0.00 | 0.00 |
| 20 Jan | 33.4 | 15.6 | 1.42 | 1.42 | 0.00 | 0.00 |
| 21 Jan | 33.5 | 15.6 | 1.46 | 1.46 | 0.00 | 0.00 |
| 22 Jan | 33.6 | 15.6 | 1.54 | 1.54 | 0.00 | 0.00 |
| 23 Jan | 33.7 | 15.6 | 1.61 | 1.61 | 0.00 | 0.00 |
| 24 Jan | 33.8 | 15.6 | 1.65 | 1.65 | 0.00 | 0.00 |
| 25 Jan | 33.9 | 15.7 | 1.73 | 1.73 | 0.00 | 0.00 |
| 26 Jan | 34.0 | 15.7 | 1.77 | 1.77 | 0.00 | 0.00 |
| 27 Jan | 34.1 | 15.8 | 1.85 | 1.85 | 0.00 | 0.00 |
| 28 Jan | 34.2 | 15.9 | 1.89 | 1.89 | 0.00 | 0.00 |
| 29 Jan | 34.4 | 16.0 | 1.97 | 1.97 | 0.00 | 0.00 |
| 30 Jan | 34.5 | 16.1 | 2.01 | 2.01 | 0.00 | 0.00 |
| 31 Jan | 34.7 | 16.2 | 2.09 | 2.09 | 0.00 | 0.00 |
Weather history Rantoul - May 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 May | - | - | 0.06 | 0.00 | 0.0 |
| 02 May | - | - | 0.01 | 0.00 | 0.0 |
| 03 May | - | - | 0.00 | 0.00 | 0.0 |
| 04 May | - | - | 0.00 | 0.00 | 0.0 |
| 05 May | - | - | 0.50 | 0.00 | 0.0 |
| 06 May | - | - | 0.09 | 0.00 | 0.0 |
| 07 May | - | - | 0.00 | 0.00 | 0.0 |
| 08 May | - | - | 0.13 | 0.00 | 0.0 |
| 09 May | - | - | 0.11 | 0.00 | 0.0 |
| 10 May | - | - | 0.00 | 0.00 | 0.0 |
| 11 May | - | - | 0.00 | 0.00 | 0.0 |
| 12 May | - | - | 0.00 | 0.00 | 0.0 |
| 13 May | - | - | 0.03 | 0.00 | 0.0 |
| 14 May | - | - | 0.00 | 0.00 | 0.0 |
| 15 May | - | - | 0.25 | 0.00 | 0.0 |
| 16 May | - | - | 0.04 | 0.00 | 0.0 |
| 17 May | - | - | 0.01 | 0.00 | 0.0 |
| 18 May | - | - | 0.00 | 0.00 | 0.0 |
| 19 May | - | - | 0.21 | 0.00 | 0.0 |
| 20 May | - | - | T | 0.00 | 0.0 |
| 21 May | - | - | 0.00 | 0.00 | 0.0 |
| 22 May | - | - | 0.00 | 0.00 | 0.0 |
| 23 May | - | - | 0.00 | 0.00 | 0.0 |
| 24 May | - | - | 0.00 | 0.00 | 0.0 |
| 25 May | - | - | 0.25 | 0.00 | 0.0 |
| 26 May | - | - | 0.00 | 0.00 | 0.0 |
| 27 May | - | - | 0.00 | 0.00 | 0.0 |
| 28 May | - | - | 0.00 | 0.00 | 0.0 |
| 29 May | - | - | 0.00 | 0.00 | 0.0 |
| 30 May | - | - | 0.00 | 0.00 | 0.0 |
| 31 May | - | - | 0.00 | 0.00 | 0.0 |
Past weather Rantoul
| May 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | - ºF | 34 ºF | |
| Average low temperature Av. low temp. | - ºF | 16 ºF | |
| Total precipitation Total precip. | 1.69 inch | 2.07 inch | |
| Total snowfall Total snowfall | 0.00 inch | 0 inch | |
| Highest max temperature Highest max temp. | - ºF | - | |
| Lowest max temperature Lowest max temp. | - ºF | - | |
| Highest min temperature Highest min temp. | - ºF | - | |
| Lowest min temperature Lowest min temp. | - ºF | - | |
Past weather May 2026 incomplete - Missing data
Geo Rantoul - Illinois
| Country | United States | |
|---|---|---|
| State | Illinois | |
| County | Champaign | |
| City | Rantoul | |
| Zip Code | 61866 | |
| Longitude | -88.14 dec. degr. | |
| Latitude | 40.29 dec. degr. | |
| Altitude - Elevation | 732ft | |
| ICAO | - | |
| IATA | - |
Date and Time Rantoul - Illinois
| Local Time | 01:26 PM | |
|---|---|---|
| Sunrise | 05:26 AM | |
| Sunset | 08:27 PM | |
| Day/Night | Day | |
| Timezone | Central Daylight Time | |
| Timezone DB | America - Chicago |
Map of Rantoul - Illinois
USGS National Map — Open interactive map
Rantoul weather averages
| Annual high temperature | 62ºF |
| Annual low temperature | 41ºF |
| Average annual precip. | 36.84 inch |
Station Data
Monthly averages Rantoul
Longitude: -88.1424, Latitude: 40.2936
Average weather Rantoul, IL - 61866
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, ...