Climate Walnut - Illinois
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 29 | 34 | 47 | 61 | 71 | 81 |
| Average low in ºF Av. low Lo | 12 | 17 | 28 | 38 | 50 | 59 |
| Av. precipitation in inch Av. precip. Pre. | 1.29 | 1.57 | 2.15 | 3.18 | 4.36 | 4.56 |
| Av. snowfall in inch Snowfall Sn | 10 | 8 | 3 | 1 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 84 | 82 | 75 | 63 | 48 | 33 |
| Average low in ºF Av. low Lo | 63 | 61 | 52 | 40 | 30 | 17 |
| Av. precipitation in inch Av. precip. Pre. | 3.85 | 4.44 | 3.12 | 2.89 | 2.44 | 1.96 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 1 | 9 |
What is the average weather in Walnut, Illinois?
Walnut experiences a humid continental climate, marked by very large seasonal temperature contrasts. Summers are warm and fairly wet, with the most precipitation arriving in June. Winters are cold and snowy, bringing significant snowfall, while January is the driest month overall.
Walnut Climate Graph - Illinois Climate Chart
Daily normals Walnut - Illinois - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 30.7 | 14.9 | 0.05 | 0.05 | 0.40 | 0.40 |
| 2 Jan | 30.5 | 14.7 | 0.10 | 0.10 | 0.80 | 0.80 |
| 3 Jan | 30.3 | 14.5 | 0.15 | 0.15 | 1.20 | 1.20 |
| 4 Jan | 30.1 | 14.3 | 0.20 | 0.20 | 1.60 | 1.60 |
| 5 Jan | 30.0 | 14.1 | 0.25 | 0.25 | 2.00 | 2.00 |
| 6 Jan | 29.8 | 13.9 | 0.31 | 0.31 | 2.40 | 2.40 |
| 7 Jan | 29.7 | 13.7 | 0.36 | 0.36 | 2.80 | 2.80 |
| 8 Jan | 29.5 | 13.5 | 0.41 | 0.41 | 3.30 | 3.30 |
| 9 Jan | 29.4 | 13.3 | 0.46 | 0.46 | 3.70 | 3.70 |
| 10 Jan | 29.3 | 13.2 | 0.51 | 0.51 | 4.20 | 4.20 |
| 11 Jan | 29.2 | 13.0 | 0.57 | 0.57 | 4.60 | 4.60 |
| 12 Jan | 29.1 | 12.9 | 0.62 | 0.62 | 5.10 | 5.10 |
| 13 Jan | 29.0 | 12.7 | 0.67 | 0.67 | 5.50 | 5.50 |
| 14 Jan | 28.9 | 12.6 | 0.72 | 0.72 | 6.00 | 6.00 |
| 15 Jan | 28.9 | 12.5 | 0.77 | 0.77 | 6.40 | 6.40 |
| 16 Jan | 28.8 | 12.4 | 0.82 | 0.82 | 6.80 | 6.80 |
| 17 Jan | 28.8 | 12.3 | 0.87 | 0.87 | 7.30 | 7.30 |
| 18 Jan | 28.8 | 12.2 | 0.92 | 0.92 | 7.70 | 7.70 |
| 19 Jan | 28.7 | 12.2 | 0.97 | 0.97 | 8.20 | 8.20 |
| 20 Jan | 28.7 | 12.1 | 1.02 | 1.02 | 8.60 | 8.60 |
| 21 Jan | 28.8 | 12.1 | 1.07 | 1.07 | 9.00 | 9.00 |
| 22 Jan | 28.8 | 12.1 | 1.11 | 1.11 | 9.40 | 9.40 |
| 23 Jan | 28.8 | 12.1 | 1.16 | 1.16 | 9.80 | 9.80 |
| 24 Jan | 28.9 | 12.1 | 1.21 | 1.21 | 10.20 | 10.20 |
| 25 Jan | 28.9 | 12.1 | 1.25 | 1.25 | 10.50 | 10.50 |
| 26 Jan | 29.0 | 12.2 | 1.30 | 1.30 | 10.90 | 10.90 |
| 27 Jan | 29.1 | 12.3 | 1.34 | 1.34 | 11.30 | 11.30 |
| 28 Jan | 29.2 | 12.4 | 1.38 | 1.38 | 11.60 | 11.60 |
| 29 Jan | 29.4 | 12.5 | 1.43 | 1.43 | 12.00 | 12.00 |
| 30 Jan | 29.5 | 12.6 | 1.47 | 1.47 | 12.30 | 12.30 |
| 31 Jan | 29.6 | 12.7 | 1.52 | 1.52 | 12.70 | 12.70 |
Weather history Walnut - August 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Aug | 72.0 | 66.0 | 1.50 | 0.00 | 0.0 |
| 02 Aug | 71.1 | 62.1 | T | 0.00 | 0.0 |
| 03 Aug | 80.1 | 57.0 | 0.00 | 0.00 | 0.0 |
| 04 Aug | 82.9 | 64.0 | 0.00 | 0.00 | 0.0 |
| 05 Aug | 84.9 | 71.1 | 0.00 | 0.00 | 0.0 |
| 06 Aug | 78.1 | 64.9 | 0.10 | 0.00 | 0.0 |
| 07 Aug | 82.0 | 64.9 | 0.00 | 0.00 | 0.0 |
| 08 Aug | 86.0 | 64.9 | 0.00 | 0.00 | 0.0 |
| 09 Aug | 81.0 | 64.0 | 0.00 | 0.00 | 0.0 |
| 10 Aug | 87.1 | 70.0 | T | 0.00 | 0.0 |
| 11 Aug | 88.0 | 73.9 | 0.00 | 0.00 | 0.0 |
| 12 Aug | 84.9 | 68.0 | 0.80 | 0.00 | 0.0 |
| 13 Aug | 80.1 | 66.0 | 0.55 | 0.00 | 0.0 |
| 14 Aug | 75.9 | 69.1 | 0.50 | 0.00 | 0.0 |
| 15 Aug | 77.0 | 70.0 | 0.42 | 0.00 | 0.0 |
| 16 Aug | 84.0 | 70.0 | 0.30 | 0.00 | 0.0 |
| 17 Aug | 82.9 | 62.1 | 0.00 | 0.00 | 0.0 |
| 18 Aug | 82.9 | 61.0 | 0.00 | 0.00 | 0.0 |
| 19 Aug | 80.1 | 66.0 | 0.00 | 0.00 | 0.0 |
| 20 Aug | 82.9 | 61.0 | 0.00 | 0.00 | 0.0 |
| 21 Aug | 81.0 | 59.0 | T | 0.00 | 0.0 |
| 22 Aug | 82.9 | 62.1 | 0.48 | 0.00 | 0.0 |
| 23 Aug | 80.1 | 55.0 | 0.00 | 0.00 | 0.0 |
| 24 Aug | 75.0 | 53.1 | 0.00 | 0.00 | 0.0 |
| 25 Aug | 80.1 | 57.0 | 0.00 | 0.00 | 0.0 |
| 26 Aug | 79.0 | 66.9 | 0.00 | 0.00 | 0.0 |
| 27 Aug | 82.9 | 59.0 | 0.00 | 0.00 | 0.0 |
| 28 Aug | 82.0 | 55.9 | 0.00 | 0.00 | 0.0 |
| 29 Aug | 82.9 | 61.0 | 0.00 | 0.00 | 0.0 |
| 30 Aug | 80.1 | 68.0 | 0.30 | 0.00 | 0.0 |
| 31 Aug | 78.1 | 69.1 | T | 0.00 | 0.0 |
Past weather Walnut
| Aug 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 80.9 ºF | 82 ºF | |
| Average low temperature Av. low temp. | 63.9 ºF | 61 ºF | |
| Total precipitation Total precip. | 4.95 inch | 4.44 inch | |
| Total snowfall Total snowfall | 0.00 inch | 0 inch | |
| Highest max temperature Highest max temp. | 88.0 ºF | - | |
| Lowest max temperature Lowest max temp. | 71.1 ºF | - | |
| Highest min temperature Highest min temp. | 73.9 ºF | - | |
| Lowest min temperature Lowest min temp. | 53.1 ºF | - | |
Past weather August 2026 incomplete - Missing data
Geo Walnut - Illinois
| Country | United States | |
|---|---|---|
| State | Illinois | |
| County | Bureau | |
| City | Walnut | |
| Zip Code | 61376 | |
| Longitude | -89.59 dec. degr. | |
| Latitude | 41.56 dec. degr. | |
| Altitude - Elevation | 715ft | |
| ICAO | - | |
| IATA | - |
Date and Time Walnut - Illinois
| Local Time | 01:11 PM | |
|---|---|---|
| Sunrise | 07:02 AM | |
| Sunset | 06:28 PM | |
| Day/Night | Day | |
| Timezone | Central Daylight Time | |
| Timezone DB | America - Chicago |
Map of Walnut - Illinois
USGS National Map — Open interactive map
Walnut weather averages
| Annual high temperature | 59ºF |
| Annual low temperature | 39ºF |
| Average annual precip. | 35.81 inch |
| Av. annual snowfall | 32 inch |
Station Data
Monthly averages Walnut
Longitude: -89.59, Latitude: 41.56
Average weather Walnut, IL - 61376
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, ...