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Bourbonnais, IL Weather
Current conditions
Forecast for this hour (no station report in the last two hours)
Forecast
10-day-
Saturday
Patchy fog before 9am. Mostly sunny. High near 74, with temperatures falling to around 72 in the afternoon. South southeast wind 0 to 10 mph.
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Saturday Night
Partly cloudy, with a low around 46. South southeast wind 0 to 5 mph.
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Sunday
Mostly sunny, with a high near 77. South wind 0 to 5 mph.
National Weather Service forecast updated 18 hrs ago.
Hourly
Hourly forecast- Now54°
- 10 AM60°
- 11 AM64°
- 12 PM68°
- 1 PM72°
- 2 PM73°
- 3 PM74°
- 4 PM74°
- 5 PM72°
- 6 PM68°
- 7 PM62°
- 8 PM59°
- 9 PM56°
- 10 PM55°
- 11 PM53°
- Sun12 AM52°
- 1 AM50°
- 2 AM49°
- 3 AM48°
- 4 AM48°
- 5 AM47°
- 6 AM46°
- 7 AM46°
- 8 AM48°
10-day forecast
Details- FriOct 23Sunny45°74°
- TodayOct 24Patchy Fog then Mostly Sunny46°74°
- SunOct 25Mostly Sunny48°77°
- MonOct 26Partly Sunny48°71°
- TueOct 27Partly Sunny49°70°
- WedOct 28Mostly Sunny51°74°
- ThuOct 29Mostly Sunny12%44°72°
- FriOct 30Sunny38°56°
- SatOct 31Partly cloudy35°58°
- SunNov 1Light rain0.04 in54°65°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news in Illinois
More weather news- Capitol Fax.com - Your Illinois News Radar » Good morning!
Thursday, Oct 22, 2026 - Posted by Isabel Miller DOMi & JD BECK, Herbie Hancock… - Barton - Thursday, Oct 22, 26 @ 8:53 am: Oh yeah, and you have to monitor comments between it all. Thank you for the lessons…
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Gorgeous weather continues for Central IllinoisWEDNESDAY: Warming up with sunny skies and calm conditions. High: 75 Low: 47 THURSDAY: Above average with sunny skies. High: 76 Low: 47 FRIDAY: Nice weather continues with sunny skies. High: 76 Low: 46 SATURDAY: Some…
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Another beautiful day ahead for Central IllinoisDECATUR, Ill. (WAND) – If you’re looking for a reason to get outside, Tuesday is your day. A high-pressure system settling over the Midwest is bringing abundant sunshine and calm winds to Central Illinois, with…
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Sunshine, chilly mornings and a big warm-up ahead for central IllinoisCENTRAL ILLINOIS (25News Now) - Fall is making an appearance across central Illinois this weekend, but don’t get too comfortable with the chilly temperatures. After a cold start on Sunday morning, sunshine will help…
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Overnight Frost Advisory for parts of Illinois, NW IndianaCBS News Colorado 10pm Saturday CBS News Detroit Weekend 11pm CBS News Los Angeles Weekend 9pm CBS News Philadelphia Weekend 11pm KDKA News Weekend 11pm CBS News Texas Weekend 10pm
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Frost advisory back in effect for Central IllinoisWAND DECATUR, Ill. (WAND) – Another cool day starts the weekend across Central Illinois with highs Saturday only reaching the upper 50s under plenty of sunny skies. Strong high pressure remains in control keeping skies…
Air quality
Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.
Forecast
- SatModerate
- SunModerate
- MonModerate
Joliet and Will County, IL reporting area · 2 hrs ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyKankakee Wwtp, records since 1887. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Joliet 44 km
- Hammond 58 km
- Orland Park 53 km
- Tinley Park 47 km
- Plainfield 59 km
- Romeoville 57 km
- Calumet City 59 km
- Merrillville 59 km
- Chicago Heights 44 km
- Crown Point 53 km
- Schererville 51 km
- Lansing 54 km
Forecasters' discussion
From the National Weather Service office in LOT, issued 6 hrs ago
Key Messages
- Precipitation free, unseasonably warm weather will continue through this weekend, with temperatures continuing to generally run above average through next week.
- Chances for any meaningful rainfall are low through next workweek.
Discussion
Issued at 241 AM CDT Sat Oct 24 2026
There's not a lot to speak on for this weekend as our stretch of dry, mild weather continues. Temperatures early this morning are in the 40s and 50s with mostly clear skies now giving way to a high cloud deck filling in from the west. Some patchy fog is beginning to blossom around parts of SE WI and north-central IN. Patchy coverage is expected to spread into portions of our CWA prior to daybreak, primarily across parts of NW Indiana as well as in Lake Co, IL. While dense fog is not a widespread concern, localized pockets of some denser fog will certainly be possible through early morning, especially in Lake Co, IL. Otherwise, expect another pleasant late October day today with highs forecast in the lower 70s and a fair mix of mid-high clouds and sunshine.
Tomorrow is anticipated to be slightly warmer with lower to middle 70s in the forecast. A weakly-forced cold front will drop through the area from the north late Sunday into Monday. While we're not expecting any rain out of this, it will cool things off slightly for Monday and Tuesday. Monday, given that the front will be pushing north to south across our area into the daytime, is expected to see high temperatures range from the lower and middle 60s in our north to the 70 farther south. 60s and lower 70s will persist through the week with rain-free conditions favored through at least mid-week. A series of waves is then progged to traverse the region and possibly provide us with some rain late in the week and into next weekend.
Doom
Aviation
Issued at 1209 AM CDT Sat Oct 24 2026
There are no significant aviation weather concerns anticipated through the period.
Surface high pressure will center over New England today into tonight as a cold front shifts eastward from the PLains into the Upper Midwest. Overall, this will result in light south- southeasterly surface winds across the terminal airspace today and tonight. VFR conditions will prevail through the period, though higher level cloud cover can be expected.
KJB
Lot Watches
IL...None. IN...None. LM...None.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.