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Dwight, IL Weather
Current conditions
Observed at Pontiac Municipal Airport · 40 min ago
Forecast
10-day-
Tonight
Clear. Low around 40, with temperatures rising to around 42 overnight. East wind 0 to 5 mph.
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Wednesday
Sunny. High near 74, with temperatures falling to around 72 in the afternoon. Northwest wind around 0 mph.
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Wednesday Night
Clear, with a low around 46. Wind around 0 mph.
National Weather Service forecast updated 16 hrs ago.
Hourly
Hourly forecast- Now45°
- 3 AM44°
- 4 AM43°
- 5 AM42°
- 6 AM42°
- 7 AM41°
- 8 AM44°
- 9 AM52°
- 10 AM59°
- 11 AM64°
- 12 PM68°
- 1 PM72°
- 2 PM73°
- 3 PM74°
- 4 PM74°
- 5 PM72°
- 6 PM68°
- 7 PM63°
- 8 PM59°
- 9 PM57°
- 10 PM55°
- 11 PM53°
- Thu12 AM52°
- 1 AM51°
10-day forecast
Details- TueOct 20Sunny40°72°
- TodayOct 21Sunny46°74°
- ThuOct 22Sunny46°75°
- FriOct 23Sunny47°72°
- SatOct 24Mostly Sunny51°73°
- SunOct 25Partly Sunny50°75°
- MonOct 26Partly Sunny15%46°70°
- TueOct 27Cloudy45°56°
- WedOct 28Rain0.09 in44°51°
- ThuOct 29Sunny43°58°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
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Air quality
Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.
Forecast
- WedModerate
- ThuModerate
- FriModerate
Joliet and Will County, IL reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyMorris 1nw, records since 1912. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
Forecasters' discussion
From the National Weather Service office in LOT, issued 2 hrs ago
Key Messages
- Areas of fog, including potentially dense fog, may develop again late tonight into early Wednesday morning in and near the Chicago metro.
- An extended period of dry and above to much above average temperatures is expected through the upcoming weekend.
Discussion
Issued at 226 PM CDT Tue Oct 20 2026
An Omega block that is in place over the CONUS is expected to persist through the end of the week. The associated ridge axis will only ever so slowly crawl eastward over the coming days, which will maintain broad surface high pressure across the region. As a result, dry conditions with an abundance of sunshine will continue through the remainder of the week with high temperatures remaining above to well above normal for this time of year. Daily lake breezes will cause the coolest (low- mid 60s) high temperatures to be observed near Lake Michigan each day.
Much like last night/early this morning, optimal radiational cooling conditions will likely allow for fog to develop late tonight into tomorrow morning and possibly again in the coming nights/mornings. This will particularly be the case in and near the Chicago metro within the footprint of the marine-influenced air brought inland during the daytime, where the fog could become dense once again.
There is pretty good ensemble agreement at this point in time that the blocking pattern will break down by early next week. This will allow for a cold front to drop through the region sometime on Monday or Tuesday, resulting in a return to cooler and more seasonable temperatures for the middle of next week. The frontal passage may bring a chance for precipitation to the area early-mid next week, but support for this across the latest suite of ensemble guidance is not ubiquitous, and there are considerable temporal differences with when this next potential opportunity for precipitation may arrive as well.
Ogorek
Aviation
Issued at 1213 AM CDT Wed Oct 21 2026
Key Aviation Messages for the current TAF period:
- Fog, locally dense, is possible prior to sunrise, mainly at Chicago Terminals north of a KARR to KMDW line.
Winds are expected to be light and calm through the night. There is another chance for fog to develop this morning. It has already started to develop around and north of KENW where obs are already reporting 1/4SM. While fog development is not a certainty, if/when it does occur, it can be locally dense with vis potentially near zero. Similar to yesterday, vis improvement should be fairly quick after sunrise.
Light southwest winds are expected through much of the day before becoming more southeasterly toward sunset. Once the fog clears, VFR conditions are expected through the end of the TAF. There is another chance for patchy fog tomorrow morning, but the chances are not as great as recently.
DK
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 4Conservative index and reflects what the press published. Terms of use.