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. High near 72, with temperatures falling to around 70 in the afternoon. West northwest wind 5 to 10 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 8, 2026 6:39 PM CDT.
The active forecast window currently covers Oct 8 to Oct 14, 2026 for Markham, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 8 to Oct 14, 2026
- Latest sync
- Oct 8, 2026 6:39 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Markham
Saturday looks like the warmest upcoming period in Markham at 81 degrees F.
Tonight is the coolest period ahead with temperatures near 51 degrees F.
The strongest winds are forecast for This Afternoon at about 5 to 10 mph WNW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 8, 2026 6:39 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 51. East southeast wind 0 to 5 mph.
A chance of rain showers after 8am. Mostly cloudy, with a high near 74. South southeast wind 0 to 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Isolated rain showers before 7pm. Mostly clear, with a low around 61. South southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Mostly sunny, with a high near 81. South wind around 10 mph, with gusts as high as 25 mph.
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 60. Chance of precipitation is 20%.
A slight chance of rain showers before 1pm. Partly sunny, with a high near 72.
Partly cloudy, with a low around 58.
Mostly sunny, with a high near 80.
A slight chance of rain showers after 7pm. Partly cloudy, with a low around 62.
A slight chance of rain showers before 1pm. Mostly sunny, with a high near 72.
Mostly cloudy, with a low around 54.
A chance of rain showers after 7am. Partly sunny, with a high near 68.
A chance of rain showers. Mostly cloudy, with a low around 55.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 8
|
Sunny
|
72°F |
5 to 10 mph
WNW
|
|
Tonight
Oct 8
|
Mostly Clear
|
51°F |
0 to 5 mph
ESE
|
|
Friday
Oct 9
|
Chance Rain Showers
|
74°F |
0 to 5 mph
SSE
|
|
Friday Night
Oct 9
|
Isolated Rain Showers then Mostly Clear
|
61°F |
10 mph
SSE
|
|
Saturday
Oct 10
|
Mostly Sunny
|
81°F |
10 mph
S
|
|
Saturday Night
Oct 10
|
Mostly Cloudy then Slight Chance Rain Showers
|
60°F |
5 to 10 mph
SSE
|
|
Sunday
Oct 11
|
Slight Chance Rain Showers
|
72°F |
5 mph
ESE
|
|
Sunday Night
Oct 11
|
Partly Cloudy
|
58°F |
0 to 5 mph
S
|
|
Columbus Day
Oct 12
|
Mostly Sunny
|
80°F |
5 to 10 mph
SSW
|
|
Monday Night
Oct 12
|
Slight Chance Rain Showers
|
62°F |
10 mph
SW
|
|
Tuesday
Oct 13
|
Slight Chance Rain Showers
|
72°F |
10 mph
NNW
|
|
Tuesday Night
Oct 13
|
Mostly Cloudy
|
54°F |
5 to 10 mph
NE
|
|
Wednesday
Oct 14
|
Chance Rain Showers
|
68°F |
5 to 10 mph
ENE
|
|
Wednesday Night
Oct 14
|
Chance Rain Showers
|
55°F |
10 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Markham.