Pinckneyville, IL Weather

Perry County4:55 PM CDT38.08°N, 89.38°WElevation 433 ft

Current conditions

Clear
76°
Clear
Feels like 75°
High 77°·Low 48°
WindCalm
Humidity33%
Dew point45°
Pressure30.28 inHg
Visibility10.0 mi
Cloud cover57%
UV index1 Low
Sunrise7:18 AM
Sunset6:07 PM

Observed at Sparta Community-Hunter Field Airport · 1 hr ago

Forecast

10-day

  • This Afternoon

    Partly sunny. High near 77, with temperatures falling to around 75 in the afternoon. South southwest wind around 3 mph.

  • Tonight

    Partly cloudy. Low around 48, with temperatures rising to around 50 overnight. South wind around 2 mph.

  • Tuesday

    Partly sunny. High near 75, with temperatures falling to around 73 in the afternoon. South southeast wind 0 to 6 mph.

National Weather Service forecast updated 6 hrs ago.

Hourly

Hourly forecast
  1. Now Partly Sunny 77°
  2. 5 PM Mostly Sunny 75°
  3. 6 PM Mostly Clear 72°
  4. 7 PM Mostly Clear 67°
  5. 8 PM Mostly Clear 61°
  6. 9 PM Clear 58°
  7. 10 PM Mostly Clear 56°
  8. 11 PM Mostly Clear 55°
  9. Tue12 AM Partly Cloudy 54°
  10. 1 AM Mostly Cloudy 53°
  11. 2 AM Mostly Cloudy 52°
  12. 3 AM Mostly Cloudy 51°
  13. 4 AM Partly Cloudy 50°
  14. 5 AM Partly Cloudy 50°
  15. 6 AM Partly Sunny 50°
  16. 7 AM Mostly Sunny 48°
  17. 8 AM Partly Sunny 50°
  18. 9 AM Partly Sunny 54°
  19. 10 AM Mostly Sunny 62°
  20. 11 AM Partly Sunny 67°
  21. 12 PM Mostly Cloudy 71°
  22. 1 PM Mostly Cloudy 73°
  23. 2 PM Mostly Cloudy 74°
  24. 3 PM Mostly Cloudy 75°

10-day forecast

Details
  1. TodayOct 26 Partly Sunny Partly Sunny48°77°
  2. TueOct 27 Partly Sunny Partly Sunny50°75°
  3. WedOct 28 Sunny Sunny51°78°
  4. ThuOct 29 Sunny Sunny54°81°
  5. FriOct 30 Partly Sunny Partly Sunny55°80°
  6. SatOct 31 Mostly Cloudy then Chance Rain Showers Mostly Cloudy then Chance Rain Showers46%56°75°
  7. SunNov 1 Slight Chance Rain Showers then Mostly Cloudy Slight Chance Rain Showers then Mostly Cloudy24%56°76°
  8. MonNov 2 Light rain Light rain0.53 in62°78°
  9. TueNov 3 Heavy rain Heavy rain1.29 in55°68°
  10. WedNov 4 Showers Showers0.09 in51°62°

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 in Illinois

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Air quality

61
Moderate
Ozone

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

Farrar, MO reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:18 AM
Sunset 6:07 PM
Daylight 10 h 48 min (−2 min 15 s tomorrow)
Full Moon · 99% lit
Moonrise 6:02 PM Moonset 7:52 AM
Full moon Nov 24 New moon Nov 9

Almanac

Monthly
Normal high / low65° / 43°
Record high90° (1940)
Record low21° (1942)
Wettest3.34 in (2019)
Month to date1.37 in (normal 2.88 in)

Du Quoin 4 Se, records since 1895. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in PAH, issued 4 hrs ago

Key Messages

- Dry conditions with warm days and cool nights will continue through the work week.

- Chances of showers return to the region this weekend, with the best chances Saturday night and Sunday. Additional chances will linger into early next week.

Discussion

Issued at 1221 PM CDT Mon Oct 26 2026

Dry surface high pressure will continue to dominate the region through the remainder of the work week. High temperatures will continue to run around 10 degrees above normal, while low temperatures trend warmer and will generally be 5-10 degrees above normal. South winds will persist through the week, but should be light enough to keep any potential fire weather concerns in check.

The upper ridge will finally be shunted well to the east by this weekend, which will allow remnants from a tropical system off the west coast of Mexico to eventually stream over the lower and middle Mississippi Valley Saturday into Sunday. Guidance continues to bounce around with the associated QPF placement and amounts, but there will be a decent (~50%) chance of some rain throughout the Quad State. The best chances continue to be late Saturday night into Sunday morning which for now bodes well for Halloween activities.

Although we will have mid and high level moisture from the tropical remnant, the better surface moisture could get hung up south of the region which could limit rain chances and amounts for the Quad State. Last night's ensemble data indicated that much of the region would see up to a half an inch of rainfall, but the probabilities of even an inch were virtually nil. At this time, there is little to no instability and the NBM has removed all mention of thunder from the forecast. The one concern is very high precipitable water values (~200% of normal), which could certainly support a heavier rainfall event. We will continue to monitor closely for any signs of more significant rainfall or thunder potential.

Temperatures will remain mild over the weekend and into next Monday. Highs will be a bit lower with clouds and precipitation potential, but lows will be warmer with increased low-level moisture and the cloud cover.

There are signs of another storm system to impact the region as early as next Monday, but confidence in the details is quite low that far out in the forecast. However, the NBM does have 20-40% chances of showers lingering from Sunday night through Monday evening.

Aviation

Issued at 1221 PM CDT Mon Oct 26 2026

Lots of high cloud will continue to stream over the area through the period. A repeat of early morning shallow fog cannot be ruled out late tonight, with the best chance up at KMVN.

Pah Watches

IL...None. MO...None. IN...None. KY...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. How to use Weather