Climate New Boston - Illinois
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 31 | 36 | 49 | 62 | 73 | 83 |
| Average low in ºF Av. low Lo | 15 | 19 | 29 | 41 | 52 | 61 |
| Av. precipitation in inch Av. precip. Pre. | 1.21 | 1.55 | 2.63 | 3.24 | 4.54 | 4.10 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 86 | 84 | 77 | 64 | 50 | 35 |
| Average low in ºF Av. low Lo | 65 | 63 | 54 | 43 | 31 | 20 |
| Av. precipitation in inch Av. precip. Pre. | 3.49 | 3.89 | 3.32 | 2.91 | 2.32 | 1.82 |
What is the average weather in New Boston, Illinois?
New Boston experiences a humid continental climate, marked by very large seasonal temperature contrasts. Summers are warm, while winters are cold. The area is fairly wet overall, with a strong seasonal pattern that brings more precipitation in summer and drier conditions in winter.
New Boston Climate Graph - Illinois Climate Chart
Daily normals New Boston - Illinois - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 30.5 | 16.1 | 0.04 | 0.04 | 0.00 | 0.00 |
| 2 Jan | 30.4 | 15.9 | 0.12 | 0.12 | 0.00 | 0.00 |
| 3 Jan | 30.3 | 15.7 | 0.16 | 0.16 | 0.00 | 0.00 |
| 4 Jan | 30.2 | 15.5 | 0.20 | 0.20 | 0.00 | 0.00 |
| 5 Jan | 30.1 | 15.4 | 0.24 | 0.24 | 0.00 | 0.00 |
| 6 Jan | 30.0 | 15.2 | 0.28 | 0.28 | 0.00 | 0.00 |
| 7 Jan | 30.0 | 15.1 | 0.31 | 0.31 | 0.00 | 0.00 |
| 8 Jan | 29.9 | 15.0 | 0.35 | 0.35 | 0.00 | 0.00 |
| 9 Jan | 29.9 | 14.9 | 0.39 | 0.39 | 0.00 | 0.00 |
| 10 Jan | 29.9 | 14.7 | 0.43 | 0.43 | 0.00 | 0.00 |
| 11 Jan | 29.9 | 14.7 | 0.47 | 0.47 | 0.00 | 0.00 |
| 12 Jan | 29.9 | 14.6 | 0.51 | 0.51 | 0.00 | 0.00 |
| 13 Jan | 30.0 | 14.5 | 0.55 | 0.55 | 0.00 | 0.00 |
| 14 Jan | 30.0 | 14.4 | 0.59 | 0.59 | 0.00 | 0.00 |
| 15 Jan | 30.1 | 14.4 | 0.63 | 0.63 | 0.00 | 0.00 |
| 16 Jan | 30.1 | 14.3 | 0.67 | 0.67 | 0.00 | 0.00 |
| 17 Jan | 30.2 | 14.3 | 0.71 | 0.71 | 0.00 | 0.00 |
| 18 Jan | 30.3 | 14.3 | 0.75 | 0.75 | 0.00 | 0.00 |
| 19 Jan | 30.4 | 14.3 | 0.79 | 0.79 | 0.00 | 0.00 |
| 20 Jan | 30.5 | 14.3 | 0.83 | 0.83 | 0.00 | 0.00 |
| 21 Jan | 30.7 | 14.3 | 0.87 | 0.87 | 0.00 | 0.00 |
| 22 Jan | 30.8 | 14.3 | 0.91 | 0.91 | 0.00 | 0.00 |
| 23 Jan | 30.9 | 14.4 | 0.94 | 0.94 | 0.00 | 0.00 |
| 24 Jan | 31.1 | 14.4 | 0.94 | 0.94 | 0.00 | 0.00 |
| 25 Jan | 31.2 | 14.5 | 0.98 | 0.98 | 0.00 | 0.00 |
| 26 Jan | 31.4 | 14.6 | 1.02 | 1.02 | 0.00 | 0.00 |
| 27 Jan | 31.6 | 14.7 | 1.06 | 1.06 | 0.00 | 0.00 |
| 28 Jan | 31.8 | 14.8 | 1.10 | 1.10 | 0.00 | 0.00 |
| 29 Jan | 32.0 | 14.9 | 1.14 | 1.14 | 0.00 | 0.00 |
| 30 Jan | 32.2 | 15.1 | 1.18 | 1.18 | 0.00 | 0.00 |
| 31 Jan | 32.4 | 15.2 | 1.22 | 1.22 | 0.00 | 0.00 |
Weather history New Boston - July 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Jul | 91.9 | 77.0 | 0.00 | - | - |
| 02 Jul | 91.9 | 78.1 | 0.00 | - | - |
| 03 Jul | - | - | - | - | - |
| 04 Jul | - | - | - | - | - |
| 05 Jul | - | - | - | - | - |
| 06 Jul | - | - | - | - | - |
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| 29 Jul | - | - | - | - | - |
| 30 Jul | - | - | - | - | - |
| 31 Jul | - | - | - | - | - |
Past weather New Boston
| Jul 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 91.9 ºF | 31 ºF | |
| Average low temperature Av. low temp. | 77.6 ºF | 15 ºF | |
| Total precipitation Total precip. | 0.00 inch | 1.21 inch | |
| Total snowfall Total snowfall | - inch | 0 inch | |
| Highest max temperature Highest max temp. | 91.9 ºF | - | |
| Lowest max temperature Lowest max temp. | 91.9 ºF | - | |
| Highest min temperature Highest min temp. | 78.1 ºF | - | |
| Lowest min temperature Lowest min temp. | 77.0 ºF | - | |
Past weather July 2026 incomplete - Missing data
Geo New Boston - Illinois
| Country | United States | |
|---|---|---|
| State | Illinois | |
| County | - | |
| City | New Boston | |
| Zip Code | 61272 | |
| Longitude | -91 dec. degr. | |
| Latitude | 41.17 dec. degr. | |
| Altitude - Elevation | 568ft | |
| ICAO | - | |
| IATA | - |
Date and Time New Boston - Illinois
| Local Time | 12:24 PM | |
|---|---|---|
| Sunrise | 05:35 AM | |
| Sunset | 08:41 PM | |
| Day/Night | Day | |
| Timezone | Central Daylight Time | |
| Timezone DB | America - Chicago |
Map of New Boston - Illinois
USGS National Map — Open interactive map
New Boston weather averages
| Annual high temperature | 61ºF |
| Annual low temperature | 41ºF |
| Average annual precip. | 35.02 inch |
Station Data
Monthly averages New Boston
Longitude: -90.9968, Latitude: 41.1703
Average weather New Boston, IL - 61272
Monthly: 1991-2020 normals
History: 2008-2026
Abbreviations
Average precipitation in : Av. precipitation in
Jan: January, Feb: February, ...Jan: January, Feb: February, ...Ja: January, Fe: February, ...