Quincy, IL Weather

Adams County11:16 PM CDT39.94°N, 91.41°WElevation 568 ft

Current conditions

Clear
63°
Clear
Feels like 63°
High 77° Friday·Low 50° tonight
WindE 3 mph
Humidity55%
Dew point46°
Pressure30.22 inHg
Visibility10 mi
Cloud cover5%
UV index0 Low
Sunrise7:24 AM
Sunset6:18 PM

Observed at Quincy Regional Airport-Baldwin Field · 1 hr ago

Forecast

10-day

  • Tonight

    Mostly clear, with a low around 50. Southeast wind around 3 mph.

  • Friday

    Sunny, with a high near 77. Southeast wind 3 to 8 mph.

  • Friday Night

    Mostly clear, with a low around 52. Southeast wind around 6 mph.

National Weather Service forecast updated 12 hrs ago.

Hourly

Hourly forecast
  1. Now Clear 57°
  2. Fri12 AM Clear 56°
  3. 1 AM Clear 55°
  4. 2 AM Clear 54°
  5. 3 AM Clear 53°
  6. 4 AM Mostly Clear 52°
  7. 5 AM Mostly Clear 52°
  8. 6 AM Sunny 51°
  9. 7 AM Sunny 51°
  10. 8 AM Sunny 52°
  11. 9 AM Sunny 56°
  12. 10 AM Sunny 62°
  13. 11 AM Sunny 67°
  14. 12 PM Sunny 71°
  15. 1 PM Sunny 74°
  16. 2 PM Sunny 75°
  17. 3 PM Sunny 76°
  18. 4 PM Sunny 77°
  19. 5 PM Sunny 75°
  20. 6 PM Clear 72°
  21. 7 PM Clear 68°
  22. 8 PM Clear 63°
  23. 9 PM Mostly Clear 62°
  24. 10 PM Mostly Clear 60°

10-day forecast

Details
  1. TodayOct 22 Sunny Sunny50°76°
  2. FriOct 23 Sunny Sunny52°77°
  3. SatOct 24 Mostly Sunny Mostly Sunny53°76°
  4. SunOct 25 Mostly Sunny Mostly Sunny55°79°
  5. MonOct 26 Partly Sunny Partly Sunny52°76°
  6. TueOct 27 Partly Sunny Partly Sunny48°68°
  7. WedOct 28 Partly Sunny Partly Sunny50°68°
  8. ThuOct 29 Cloudy Cloudy0.09 in47°64°
  9. FriOct 30 Partly cloudy Partly cloudy44°56°
  10. SatOct 31 Rain Rain0.20 in43°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 near Quincy

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Air quality

40
Good
Ozone

Air quality is satisfactory, and air pollution poses little or no risk.

Mark Twain State Park, 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 7:24 AM
Sunset 6:18 PM
Daylight 10 h 53 min (−2 min 29 s tomorrow)
Waxing Gibbous · 89% lit
Moonrise 4:20 PM Moonset 3:30 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low63° / 43°
Record high85° (2022)
Record low25° (1976)
Wettest1.53 in (1912)
Yesterday74° / 47°
Month to date1.56 in (normal 2.17 in)

Quincy Area, records since 1901. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in LSX, issued 4 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 619 PM CDT Thu Oct 22 2026

Dry and mainly VFR conditions are expected through the period. There will be some fog late tonight into early Friday in low lying areas with MVFR and possible IFR visibilities including at SUS and CPS. Otherwise winds are expected to remain light.

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.