Climate Hillsboro - Illinois
| JanJa | FebFe | MarMa | AprAp | MayMa | JunJu | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 38 | 44 | 55 | 68 | 77 | 86 |
| Average low in ºF Av. low Lo | 22 | 25 | 35 | 45 | 55 | 64 |
| Av. precipitation in inch Av. precip. Pre. | 2.51 | 2.32 | 2.96 | 4.17 | 5.21 | 3.63 |
| Av. snowfall in inch Snowfall Sn | 6 | 3 | 1 | 0 | 0 | 0 |
| JulJu | AugAu | SepSe | OctOc | NovNo | DecDe | |
|---|---|---|---|---|---|---|
| Average high in ºF Av. high Hi | 89 | 88 | 81 | 69 | 55 | 41 |
| Average low in ºF Av. low Lo | 68 | 66 | 57 | 46 | 36 | 25 |
| Av. precipitation in inch Av. precip. Pre. | 3.94 | 3.02 | 3.37 | 3.36 | 4.03 | 2.87 |
| Av. snowfall in inch Snowfall Sn | 0 | 0 | 0 | 0 | 0 | 3 |
Hillsboro experiences a humid continental climate, marked by a very large seasonal temperature contrast. Summers are hot, while winters are cold and bring regular snowfall. The area is fairly wet, with precipitation spread relatively evenly throughout the year, though spring tends to be the wettest season.
Hillsboro Climate Graph - Illinois Climate Chart
Daily normals Hillsboro - Illinois - January
Day | High ºF | Low ºF | Prec/mo inch | Prec/yr inch | Snow/mo inch | Snow/yr inch |
|---|---|---|---|---|---|---|
| 1 Jan | 37.8 | 22.2 | 0.08 | 0.08 | 0.20 | 0.50 |
| 2 Jan | 37.7 | 22.1 | 0.20 | 0.20 | 0.31 | 0.80 |
| 3 Jan | 37.7 | 22.0 | 0.28 | 0.28 | 0.51 | 1.30 |
| 4 Jan | 37.6 | 21.9 | 0.35 | 0.35 | 0.71 | 1.80 |
| 5 Jan | 37.5 | 21.8 | 0.47 | 0.47 | 0.91 | 2.30 |
| 6 Jan | 37.5 | 21.7 | 0.55 | 0.55 | 1.10 | 2.80 |
| 7 Jan | 37.5 | 21.6 | 0.63 | 0.63 | 1.30 | 3.30 |
| 8 Jan | 37.4 | 21.6 | 0.71 | 0.71 | 1.50 | 3.80 |
| 9 Jan | 37.4 | 21.5 | 0.83 | 0.83 | 1.69 | 4.30 |
| 10 Jan | 37.4 | 21.4 | 0.91 | 0.91 | 1.89 | 4.80 |
| 11 Jan | 37.4 | 21.4 | 0.98 | 0.98 | 2.09 | 5.30 |
| 12 Jan | 37.4 | 21.3 | 1.06 | 1.06 | 2.28 | 5.80 |
| 13 Jan | 37.5 | 21.3 | 1.10 | 1.10 | 2.52 | 6.40 |
| 14 Jan | 37.5 | 21.2 | 1.18 | 1.18 | 2.72 | 6.90 |
| 15 Jan | 37.6 | 21.2 | 1.26 | 1.26 | 2.91 | 7.40 |
| 16 Jan | 37.6 | 21.2 | 1.34 | 1.34 | 3.11 | 7.90 |
| 17 Jan | 37.7 | 21.2 | 1.42 | 1.42 | 3.31 | 8.40 |
| 18 Jan | 37.7 | 21.2 | 1.50 | 1.50 | 3.50 | 8.90 |
| 19 Jan | 37.8 | 21.2 | 1.57 | 1.57 | 3.70 | 9.40 |
| 20 Jan | 37.9 | 21.2 | 1.65 | 1.65 | 3.90 | 9.90 |
| 21 Jan | 38.0 | 21.2 | 1.73 | 1.73 | 4.09 | 10.40 |
| 22 Jan | 38.1 | 21.2 | 1.81 | 1.81 | 4.41 | 11.20 |
| 23 Jan | 38.3 | 21.3 | 1.85 | 1.85 | 4.61 | 11.70 |
| 24 Jan | 38.4 | 21.3 | 1.97 | 1.97 | 4.80 | 12.20 |
| 25 Jan | 38.5 | 21.4 | 2.05 | 2.05 | 5.00 | 12.70 |
| 26 Jan | 38.7 | 21.4 | 2.13 | 2.13 | 5.20 | 13.20 |
| 27 Jan | 38.9 | 21.5 | 2.20 | 2.20 | 5.39 | 13.70 |
| 28 Jan | 39.0 | 21.6 | 2.28 | 2.28 | 5.59 | 14.20 |
| 29 Jan | 39.2 | 21.7 | 2.36 | 2.36 | 5.79 | 14.70 |
| 30 Jan | 39.4 | 21.8 | 2.44 | 2.44 | 5.98 | 15.20 |
| 31 Jan | 39.6 | 21.9 | 2.52 | 2.52 | 6.18 | 15.70 |
Weather history Hillsboro - June 2026
| Day | High ºF | Low ºF | Precip. inch | Snow inch | Snow d. inch |
|---|---|---|---|---|---|
| 01 Jun | 86.0 | 63.0 | 1.90 | - | - |
| 02 Jun | - | - | - | - | - |
| 03 Jun | - | - | - | - | - |
| 04 Jun | 84.0 | 64.9 | 0.00 | - | - |
| 05 Jun | 84.9 | 64.9 | 0.00 | - | - |
| 06 Jun | 89.1 | 71.1 | 0.00 | - | - |
| 07 Jun | 89.1 | 72.0 | T | - | - |
| 08 Jun | 87.1 | 68.0 | 1.90 | - | - |
| 09 Jun | - | - | - | - | - |
| 10 Jun | 93.0 | 66.0 | 0.00 | - | - |
| 11 Jun | 93.0 | 66.0 | 1.40 | - | - |
| 12 Jun | 82.0 | 64.0 | 0.00 | - | - |
| 13 Jun | 82.0 | 62.1 | 0.00 | - | - |
| 14 Jun | - | - | - | - | - |
| 15 Jun | - | - | - | - | - |
| 16 Jun | - | - | - | - | - |
| 17 Jun | - | - | - | - | - |
| 18 Jun | - | - | - | - | - |
| 19 Jun | - | - | - | - | - |
| 20 Jun | - | - | - | - | - |
| 21 Jun | - | - | - | - | - |
| 22 Jun | - | - | - | - | - |
| 23 Jun | - | - | - | - | - |
| 24 Jun | - | - | - | - | - |
| 25 Jun | - | - | - | - | - |
| 26 Jun | - | - | - | - | - |
| 27 Jun | - | - | - | - | - |
| 28 Jun | - | - | - | - | - |
| 29 Jun | - | - | - | - | - |
| 30 Jun | - | - | - | - | - |
Past weather Hillsboro
| Jun 26 | Normal | ||
|---|---|---|---|
| Average high temperature Av. high temp. | 87.0 ºF | 38 ºF | |
| Average low temperature Av. low temp. | 66.2 ºF | 22 ºF | |
| Total precipitation Total precip. | 5.20 inch | 2.51 inch | |
| Total snowfall Total snowfall | - inch | 6 inch | |
| Highest max temperature Highest max temp. | 93.0 ºF | - | |
| Lowest max temperature Lowest max temp. | 82.0 ºF | - | |
| Highest min temperature Highest min temp. | 72.0 ºF | - | |
| Lowest min temperature Lowest min temp. | 62.1 ºF | - | |
Past weather June 2026 incomplete - Missing data
Geo Hillsboro - Illinois
| Country | United States | |
|---|---|---|
| State | Illinois | |
| County | Montgomery | |
| City | Hillsboro | |
| Zip Code | 62049 | |
| Longitude | -89.46 dec. degr. | |
| Latitude | 39.14 dec. degr. | |
| Altitude - Elevation | 633ft | |
| ICAO | - | |
| IATA | - |
Date and Time Hillsboro - Illinois
| Local Time | 07:40 PM | |
|---|---|---|
| Sunrise | 05:29 AM | |
| Sunset | 08:27 PM | |
| Day/Night | Day | |
| Timezone | Chicago -6:00 | |
| Timezone DB | America - Chicago |
Map of Hillsboro - Illinois
USGS National Map — Open interactive map
Hillsboro weather averages
| Annual high temperature | 66ºF |
| Annual low temperature | 45ºF |
| Average annual precip. | 41.39 inch |
| Av. annual snowfall | 13 inch |
Station Data
Monthly averages Hillsboro
Longitude: -89.457, Latitude: 39.1445
Average weather Hillsboro, IL - 62049
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, ...