Quincy, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Quincy, IL in one place.
Sunny. High near 92, with temperatures falling to around 88 in the afternoon. Southwest wind around 7 mph.
Local Weather Overview
This forecast page for Quincy, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Oct 12, 2026 12:27 AM CDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for Quincy, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 12, 2026 12:27 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Quincy
Tuesday looks like the warmest upcoming period in Quincy at 92 degrees F.
Friday Night is the coolest period ahead with temperatures near 40 degrees F.
The strongest winds are forecast for Friday at about 12 to 20 mph NW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 12, 2026 12:27 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms after 7pm. Mostly cloudy, with a low around 68. Southwest wind around 3 mph. Chance of precipitation is 90%.
Showers and thunderstorms. Mostly cloudy, with a high near 77. Chance of precipitation is 90%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
Showers and thunderstorms. Mostly cloudy, with a high near 72. Chance of precipitation is 80%.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 1am. Mostly cloudy, with a low around 53. Chance of precipitation is 70%.
Partly sunny, with a high near 63.
Partly cloudy, with a low around 40.
Sunny, with a high near 59.
Clear, with a low around 40.
Sunny, with a high near 67.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny
|
92°F |
7 mph
SW
|
|
Tuesday Night
Oct 13
|
Showers And Thunderstorms
|
68°F |
3 mph
SW
|
|
Wednesday
Oct 14
|
Showers And Thunderstorms
|
77°F |
6 mph
N
|
|
Wednesday Night
Oct 14
|
Showers And Thunderstorms Likely
|
62°F |
7 mph
NE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
72°F |
8 mph
E
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
53°F |
7 to 10 mph
N
|
|
Friday
Oct 16
|
Partly Sunny
|
63°F |
12 to 20 mph
NW
|
|
Friday Night
Oct 16
|
Partly Cloudy
|
40°F |
5 to 14 mph
NW
|
|
Saturday
Oct 17
|
Sunny
|
59°F |
5 mph
N
|
|
Saturday Night
Oct 17
|
Clear
|
40°F |
3 mph
SE
|
|
Sunday
Oct 18
|
Sunny
|
67°F |
5 to 9 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Quincy.
