Carlyle, IL Weather

Clinton County7:52 AM CDT38.61°N, 89.37°WElevation 456 ft

Current conditions

Clear
48°
Clear
Feels like 48°
High 75°·Low 47°
WindE 1 mph
Humidity93%
Dew point46°
Pressure30.28 inHg
Visibility10.0 mi
Cloud cover1%
UV index0 Low
Sunrise7:15 AM
Sunset6:10 PM

Observed at Salem, Salem-Leckrone Airport · 37 min ago

Forecast

10-day
  • Friday

    Sunny, with a high near 75. Southeast wind 1 to 6 mph.

  • Friday Night

    Mostly clear, with a low around 47. Southeast wind around 3 mph.

  • Saturday

    Mostly sunny, with a high near 75. Southeast wind around 3 mph.

National Weather Service forecast updated 20 hrs ago.

  1. Now Sunny 47°
  2. 8 AM Sunny 49°
  3. 9 AM Sunny 55°
  4. 10 AM Sunny 61°
  5. 11 AM Sunny 66°
  6. 12 PM Sunny 69°
  7. 1 PM Sunny 72°
  8. 2 PM Sunny 73°
  9. 3 PM Sunny 74°
  10. 4 PM Sunny 75°
  11. 5 PM Sunny 73°
  12. 6 PM Clear 69°
  13. 7 PM Clear 64°
  14. 8 PM Clear 59°
  15. 9 PM Clear 57°
  16. 10 PM Clear 56°
  17. 11 PM Clear 54°
  18. Sat12 AM Clear 53°
  19. 1 AM Clear 53°
  20. 2 AM Clear 52°
  21. 3 AM Mostly Clear 51°
  22. 4 AM Mostly Clear 49°
  23. 5 AM Mostly Clear 49°
  24. 6 AM Mostly Sunny 48°

Daily forecast

Details
  1. ThuOct 22 Sunny Sunny47°77°
  2. TodayOct 23 Sunny Sunny47°75°
  3. SatOct 24 Mostly Sunny Mostly Sunny48°75°
  4. SunOct 25 Mostly Sunny Mostly Sunny48°78°
  5. MonOct 26 Partly Sunny Partly Sunny48°77°
  6. TueOct 27 Partly Sunny Partly Sunny46°74°
  7. WedOct 28 Mostly Sunny Mostly Sunny47°70°
  8. ThuOct 29 Sunny Sunny38°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
Open the National Weather Service radar (the map here needs JavaScript).

Weather news in Illinois

More weather news
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    CENTRAL 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 Indiana

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Air quality

74
Moderate
Fine particles (PM2.5)

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

Forecast

  • FriModerate
  • SatModerate
  • SunModerate

St. Louis (Metro-east), IL reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:15 AM
Sunset 6:10 PM
Daylight 10 h 54 min (−2 min 19 s tomorrow)
Waxing Gibbous · 92% lit
Moonrise 4:35 PM Moonset 4:27 AM
Full moon Oct 26 New moon Nov 9

Nearby

Forecasters' discussion

From the National Weather Service office in LSX, issued 7 hrs ago

Key Messages

- Dry and seasonably warm conditions will persist through the weekend.

Short Term

Issued at 219 PM CDT Thu Oct 22 2026

A slow-moving upper-level ridge will dominate the Mid-Mississippi River Valley through the weekend with dry conditions continuing and only slight variations in above average temperatures. With a gradual exit of the surface high pressure center extending into the CWA this afternoon, the balance of airmass modification and subtle southeasterly low-level CAA through Friday followed by waves of upper-level clouds on Saturday and Sunday combined with weak southerly WAA will contribute to only slight fluctuations of high temperatures within the 70s F. Each night, the most favorable radiational cooling and coolest low temperatures in the 40s F will also become more and more confined to river valleys and southeastern MO/southwestern IL, closest to the high pressure and where clouds will be less prevalent and/or thinner. Patchy river valley fog is expected again Friday morning and potentially Saturday morning but coverage should be less.

Long Term

Issued at 219 PM CDT Thu Oct 22 2026

Global model guidance diverges considerably early to mid-next week in the evolution of an upper-level trough that propagates into the central CONUS Monday into Tuesday as the Omega Block breaks down. The track, amplitude, and tilt of this trough vary across guidance including whether an associated cold front passes through the CWA Tuesday or early Wednesday, enters and then stalls in the CWA, or stalls before reaching the CWA altogether. Accordingly, the NBM interquartile range increases to between 7 and 15 F Tuesday onward, with the 75th percentile remaining steady and the 25th percentile cooling closer to average. If the front reaches the CWA, showers will also become possible, with greatest probabilities of measurable rainfall in global ensemble models across central/northeastern MO and west-central IL at 30 to 50 percent. However, a widespread, substantial rainfall appears unlikely in the ranges of current scenarios. The aforementioned uncertainties persist through the end of the forecast period, late next week.

Aviation

Issued at 1233 AM CDT Fri Oct 23 2026

VFR conditions continue with light winds as high pressure remains in place across the region. The only question is whether valley fog will occur in the morning. With a calm wind near the center of high pressure, this is most likely to occur at SUS or CPS, though potentially JEF as well.

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.