Hillsboro, IL Weather Forecast
Montgomery County, Illinois
Live radar, warnings and storm tracking for Hillsboro, with free alerts the moment it counts.
The next few hours
A comfortable afternoon, mostly sunny
It is 67° with a dew point of 50°, which is comfortable for this time of year. The sky is mostly sunny.
Nothing in the next day and a half is wet enough to move plans for.
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Quiet through the next day and a half
Nothing wet is expected over the next day and a half.
The overnight low settles near 38°. Tomorrow reaches 48°, 17° cooler than today. The humidity goes with it: tomorrow is the more comfortable half of this window, and the safer one for anything outdoors.
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
25–65°F across the weekThe week runs between 24° and 65°, with today the warmest day of it. There is no real trend across it: one day looks much like the next. Every day in the outlook stays dry.
Free alerts for Hillsboro
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Hillsboro, IL at a glance
Hillsboro is home to about 5,773 people in Montgomery County, across 8.6 square miles. It ranks 307th by population of 441 places in Illinois with a forecast here. The nearest neighbour with its own forecast is Litchfield, 10 miles away.
- County
- Montgomery County
- Population
- 5,773 2023 est.
- Land area
- 8.6 sq mi
- People per sq mi
- 669
- Forecast point
- 39.1762°N, 89.4729°W
How well can the network see Hillsboro?
The nearest Doppler radar is KILX (Lincoln, IL), to the N. Its lowest scan passes about 5,400 ft above Hillsboro. The beam is above the lowest few thousand feet here, so a warning for Hillsboro can come before anything looks dramatic on radar.
The closest weather station is K3LF (Litchfield Muni). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near Hillsboro
- Litchfield, IL10 mi
- Gillespie, IL19 mi
- Staunton, IL20 mi
- Greenville, IL21 mi
- Carlinville, IL23 mi
- Vandalia, IL24 mi
- Pana, IL25 mi
- Virden, IL28 mi
Elsewhere in Illinois
ChicagoAuroraJolietNapervilleRockfordElginAll Illinois forecasts →

