Park Forest, IL Weather

Cook County2:05 AM CDT41.49°N, 87.67°WElevation 712 ft

Current conditions

Partly Cloudy
51°
Partly Cloudy
Feels like 51°
High 70°·Low 48° tonight
WindSE 5 mph gusts 12 mph
Humidity68%
Dew point41°
Cloud cover36%
Sunrise7:13 AM
Sunset5:58 PM

Forecast for this hour (no station report in the last two hours)

Forecast

10-day

  • Friday Night

    Mostly clear, with a low around 48.

  • Saturday

    Mostly sunny, with a high near 70.

  • Saturday Night

    Partly cloudy, with a low around 51.

National Weather Service forecast updated 3 days ago.

Hourly

Hourly forecast
  1. Now Partly Cloudy 51°
  2. 3 AM Partly Cloudy 50°
  3. 4 AM Partly Cloudy 49°
  4. 5 AM Partly Cloudy 48°
  5. 6 AM Mostly Sunny 48°
  6. 7 AM Mostly Sunny 48°
  7. 8 AM Mostly Sunny 50°
  8. 9 AM Mostly Sunny 52°
  9. 10 AM Mostly Sunny 56°
  10. 11 AM Mostly Sunny 60°
  11. 12 PM Mostly Sunny 64°
  12. 1 PM Mostly Sunny 67°
  13. 2 PM Mostly Sunny 69°
  14. 3 PM Mostly Sunny 70°
  15. 4 PM Mostly Sunny 69°
  16. 5 PM Mostly Sunny 68°
  17. 6 PM Partly Cloudy 66°
  18. 7 PM Partly Cloudy 63°
  19. 8 PM Partly Cloudy 61°
  20. 9 PM Partly Cloudy 59°
  21. 10 PM Partly Cloudy 57°
  22. 11 PM Partly Cloudy 56°
  23. Sun12 AM Partly Cloudy 55°
  24. 1 AM Mostly Cloudy 55°

10-day forecast

Details
  1. TueOct 20 Sunny Sunny42°70°
  2. WedOct 21 Sunny Sunny46°72°
  3. ThuOct 22 Sunny Sunny48°72°
  4. FriOct 23 Sunny Sunny48°69°
  5. TodayOct 24 Mostly Sunny Mostly Sunny51°70°
  6. SunOct 25 Partly Sunny Partly Sunny52°72°
  7. MonOct 26 Partly Sunny Partly Sunny15%49°67°
  8. TueOct 27 Cloudy Cloudy44°55°
  9. WedOct 28 Cloudy Cloudy43°51°
  10. ThuOct 29 Sunny Sunny41°56°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
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Weather news near Park Forest

More weather news

Air quality

92
Moderate
Fine particles (PM2.5)

Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Forecast

  • SatModerate
  • SunModerate
  • MonModerate

South and West Suburbs (Chicago), IL reporting area · 2 hrs ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:13 AM
Sunset 5:58 PM
Daylight 10 h 44 min (−2 min 36 s tomorrow)
Waxing Gibbous · 95% lit
Moonrise 4:50 PM Moonset 5:28 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low60° / 43°
Record high83° (1963)
Record low25° (1942)
Wettest2.25 in (2021)
Month to date2.13 in (normal 2.62 in)

Chicago Midway Ap, records since 1928. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in LOT, issued 1 hr 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 150 PM CDT Fri Oct 23 2026

Tonight through Sunday:

As of this writing, what had been a bank of extensive fog and very low clouds across Chicago's far northern suburbs this morning has finally contracted to a remaining patch near Winthrop Harbor, IL. With lake enhanced moisture evident in the Waukegan and southeast WI dew point obs, wouldn't be surprised if patchy fog sneaks back into northeastern Lake County this evening from continued light to moderate southeasterly boundary layer flow.

Another calm night is in store tonight, with the main change happening aloft in terms of strengthening southerly flow just above the nocturnal inversion. Over the southeast half or third of the area (I-88 corridor in interior Chicago metro and points southeast), flow aloft should be sufficiently weak to enable patchy shallow ground fog development. Can't completely rule out very localized dense fog, but the setup isn't nearly as favorable as this (Friday) morning. High clouds will filter in from the northwest overnight into Saturday morning, keeping overnight lows a bit milder across interior northern Illinois in particular.

On Saturday, high temperatures will likely be close to a carbon copy of today (Friday), in the lower to mid 70s. Illinois side lake cooling will be confined to the immediate shoreline during the afternoon as southerly winds back to southeast with lake influence. Following a calm and cool (relative to Saturday afternoon's warmth) Saturday night, Sunday will likely be the warmest day of this stretch unless mid and high cloud cover limits high temps a bit.

Sunday Night through Friday:

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.