Markham, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Markham, IL in one place.
Sunny, with a high near 92. Southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Local Weather Overview
This forecast page for Markham, 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 11, 2026 9:38 PM CDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for Markham, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 11, 2026 9:38 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Markham
Tuesday looks like the warmest upcoming period in Markham at 92 degrees F.
Saturday Night is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Friday at about 17 to 21 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 11, 2026 9:38 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and thunderstorms likely. Partly cloudy, with a low around 68. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a high near 79. North northwest wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Showers and thunderstorms. Mostly cloudy, with a low around 60. Northeast wind 6 to 10 mph, with gusts as high as 17 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Mostly cloudy, with a high near 73. Chance of precipitation is 80%.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Chance of precipitation is 70%.
A slight chance of showers and thunderstorms before 7am. Partly sunny, with a high near 63.
Partly cloudy, with a low around 37.
Sunny, with a high near 59.
Clear, with a low around 36.
Sunny, with a high near 67.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny
|
92°F |
7 to 10 mph
SW
|
|
Tuesday Night
Oct 13
|
Chance Showers And Thunderstorms
|
68°F |
5 mph
SW
|
|
Wednesday
Oct 14
|
Showers And Thunderstorms
|
79°F |
5 mph
NNW
|
|
Wednesday Night
Oct 14
|
Showers And Thunderstorms
|
60°F |
6 to 10 mph
NE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
73°F |
10 mph
E
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
51°F |
9 to 15 mph
NNW
|
|
Friday
Oct 16
|
Slight Chance Showers And Thunderstorms then Partly Sunny
|
63°F |
17 to 21 mph
NW
|
|
Friday Night
Oct 16
|
Partly Cloudy
|
37°F |
6 to 18 mph
NNW
|
|
Saturday
Oct 17
|
Sunny
|
59°F |
6 mph
N
|
|
Saturday Night
Oct 17
|
Clear
|
36°F |
3 mph
ESE
|
|
Sunday
Oct 18
|
Sunny
|
67°F |
3 to 9 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Markham.