Mark, IL Weather Forecast
Local 7-day forecast
Patchy Fog
Track current conditions, temperature changes, wind, and the full daily outlook for Mark, IL in one place.
Patchy fog before 7am, then patchy fog and a chance of showers and thunderstorms between 7am and 10am, then showers and thunderstorms likely between 10am and 11am, then a chance of showers and thunderstorms. Some of the storms could produce heavy rain. Partly sunny, with a high near 86. South wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Local Weather Overview
This forecast page for Mark, 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: Aug 10, 2026 4:48 AM CDT.
The active forecast window currently covers Aug 11 to Aug 16, 2026 for Mark, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 11 to Aug 16, 2026
- Latest sync
- Aug 10, 2026 4:48 AM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Mark
Tuesday looks like the warmest upcoming period in Mark at 86 degrees F.
Friday Night is the coolest period ahead with temperatures near 65 degrees F.
The strongest winds are forecast for Friday at about 5 to 10 mph E.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 10, 2026 4:48 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KLOT
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 before 7pm, then showers and thunderstorms likely between 7pm and 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 71. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 50%.
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Mostly cloudy, with a high near 79. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.
Showers and thunderstorms likely before 7am, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Aug 11
|
Patchy Fog
|
86°F |
5 mph
S
|
|
Tuesday Night
Aug 11
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
71°F |
5 mph
E
|
|
Wednesday
Aug 12
|
Chance Showers And Thunderstorms
|
85°F |
5 mph
E
|
|
Wednesday Night
Aug 12
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
70°F |
0 to 5 mph
NE
|
|
Thursday
Aug 13
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
79°F |
0 to 5 mph
E
|
|
Thursday Night
Aug 13
|
Showers And Thunderstorms Likely
|
66°F |
5 mph
NE
|
|
Friday
Aug 14
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
77°F |
5 to 10 mph
E
|
|
Friday Night
Aug 14
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
65°F |
10 mph
E
|
|
Saturday
Aug 15
|
Chance Showers And Thunderstorms
|
80°F |
10 mph
S
|
|
Saturday Night
Aug 15
|
Chance Showers And Thunderstorms
|
67°F |
5 to 10 mph
S
|
|
Sunday
Aug 16
|
Chance Showers And Thunderstorms
|
80°F |
5 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Mark.