Hot-summer humid continental climate
Climate Hillsboro - Illinois
Annual high66ºF
Annual low45ºF
Precipitation41.39 inch
| Month | HighºF | LowºF | Precipinch | Snowinch |
|---|---|---|---|---|
| Jan | 38 | 22 | 2.51 | 6 |
| Feb | 44 | 25 | 2.32 | 3 |
| Mar | 55 | 35 | 2.96 | 1 |
| Apr | 68 | 45 | 4.17 | 0 |
| May | 77 | 55 | 5.21 | 0 |
| Jun | 86 | 64 | 3.63 | 0 |
| Jul | 89 | 68 | 3.94 | 0 |
| Aug | 88 | 66 | 3.02 | 0 |
| Sep | 81 | 57 | 3.37 | 0 |
| Oct | 69 | 46 | 3.36 | 0 |
| Nov | 55 | 36 | 4.03 | 0 |
| Dec | 41 | 25 | 2.87 | 3 |
- JanHigh 38ºFLow 22ºFPrecip 2.51 inch
- FebHigh 44ºFLow 25ºFPrecip 2.32 inch
- MarHigh 55ºFLow 35ºFPrecip 2.96 inch
- AprHigh 68ºFLow 45ºFPrecip 4.17 inch
- MayHigh 77ºFLow 55ºFPrecip 5.21 inch
- JunHigh 86ºFLow 64ºFPrecip 3.63 inch
- JulHigh 89ºFLow 68ºFPrecip 3.94 inch
- AugHigh 88ºFLow 66ºFPrecip 3.02 inch
- SepHigh 81ºFLow 57ºFPrecip 3.37 inch
- OctHigh 69ºFLow 46ºFPrecip 3.36 inch
- NovHigh 55ºFLow 36ºFPrecip 4.03 inch
- DecHigh 41ºFLow 25ºFPrecip 2.87 inch
Climate summary
What is the average weather in Hillsboro, Illinois?
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 weather averages
Annual high66ºF
Annual low45ºF
Precipitation41.39 inch
Snowfall13 inch
Daily normals Hillsboro - Illinois - January
| Day | HighºF | LowºF | Prec/ | Prec/ |
|---|---|---|---|---|
| Jan 1 | 38.7 | 22.9 | 0.10 | 0.10 |
| Jan 2 | 38.5 | 22.7 | 0.21 | 0.21 |
| Jan 3 | 38.4 | 22.5 | 0.31 | 0.31 |
| Jan 4 | 38.3 | 22.4 | 0.41 | 0.41 |
| Jan 5 | 38.1 | 22.2 | 0.51 | 0.51 |
| Jan 6 | 38.0 | 22.0 | 0.61 | 0.61 |
| Jan 7 | 38.0 | 21.9 | 0.71 | 0.71 |
| Jan 8 | 37.9 | 21.7 | 0.81 | 0.81 |
| Jan 9 | 37.8 | 21.6 | 0.91 | 0.91 |
| Jan 10 | 37.8 | 21.5 | 1.00 | 1.00 |
| Jan 11 | 37.7 | 21.3 | 1.09 | 1.09 |
| Jan 12 | 37.7 | 21.2 | 1.17 | 1.17 |
| Jan 13 | 37.7 | 21.1 | 1.25 | 1.25 |
| Jan 14 | 37.7 | 21.0 | 1.32 | 1.32 |
| Jan 15 | 37.8 | 21.0 | 1.40 | 1.40 |
| Jan 16 | 37.8 | 20.9 | 1.48 | 1.48 |
| Jan 17 | 37.9 | 20.8 | 1.56 | 1.56 |
| Jan 18 | 38.0 | 20.8 | 1.64 | 1.64 |
| Jan 19 | 38.0 | 20.8 | 1.72 | 1.72 |
| Jan 20 | 38.2 | 20.8 | 1.78 | 1.78 |
| Jan 21 | 38.3 | 20.8 | 1.85 | 1.85 |
| Jan 22 | 38.4 | 20.8 | 1.91 | 1.91 |
| Jan 23 | 38.5 | 20.8 | 1.97 | 1.97 |
| Jan 24 | 38.7 | 20.9 | 2.04 | 2.04 |
| Jan 25 | 38.9 | 21.0 | 2.11 | 2.11 |
| Jan 26 | 39.1 | 21.0 | 2.18 | 2.18 |
| Jan 27 | 39.3 | 21.1 | 2.25 | 2.25 |
| Jan 28 | 39.5 | 21.2 | 2.32 | 2.32 |
| Jan 29 | 39.7 | 21.4 | 2.39 | 2.39 |
| Jan 30 | 39.9 | 21.5 | 2.45 | 2.45 |
| Jan 31 | 40.2 | 21.7 | 2.52 | 2.52 |
Precipitation and snow add up through the month (/mo) and the year (/yr)
Weather history Hillsboro - November 2026
| Day | HighºF | LowºF | Precip.inch |
|---|---|---|---|
| Nov 1 | 66.9 | 57.0 | 0.01 |
| Nov 2 | 62.1 | 53.1 | 0.00 |
| Nov 3 | 70.0 | 62.1 | 0.47 |
| Nov 4 | – | – | – |
| Nov 5 | 66.9 | 46.0 | T |
| Nov 6 | 55.9 | 45.0 | 0.00 |
| Nov 7 | 52.0 | 28.9 | 0.00 |
| Nov 8 | 64.9 | 51.1 | 0.00 |
| Nov 9 | 68.0 | 30.9 | 0.00 |
| Nov 10 | – | – | – |
| Nov 11 | – | – | – |
| Nov 12 | – | – | – |
| Nov 13 | – | – | – |
| Nov 14 | – | – | – |
| Nov 15 | – | – | – |
| Nov 16 | – | – | – |
| Nov 17 | – | – | – |
| Nov 18 | – | – | – |
| Nov 19 | – | – | – |
| Nov 20 | – | – | – |
| Nov 21 | – | – | – |
| Nov 22 | – | – | – |
| Nov 23 | – | – | – |
| Nov 24 | – | – | – |
| Nov 25 | – | – | – |
| Nov 26 | – | – | – |
| Nov 27 | – | – | – |
| Nov 28 | – | – | – |
| Nov 29 | – | – | – |
| Nov 30 | – | – | – |
The data for November 2026 is incomplete: some days or values are missing.
- –No data
- –Not yet observed or received
- TTrace, too small to measure
Observed extremes
- Highest max temperature70.0ºF · Nov 3
- Lowest max temperature52.0ºF · Nov 7
- Highest min temperature62.1ºF · Nov 3
- Lowest min temperature28.9ºF · Nov 7
Geo Hillsboro - Illinois
Location
- Country
- United States
- State
- Illinois
- County
- Montgomery
- City
- Hillsboro
- Zip Code
- 62049
- Elevation
- 633 ft
- Longitude
- -89.46
- Latitude
- 39.14
- ICAO
- –
- IATA
- –