Mountjoy, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Mountjoy, IL in one place.
A chance of showers and thunderstorms after 10am. Partly sunny, with a high near 83. South southwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Mountjoy, 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: Jun 13, 2026 11:47 AM CDT.
The active forecast window currently covers Jun 13 to Jun 19, 2026 for Mountjoy, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 13 to Jun 19, 2026
- Latest sync
- Jun 13, 2026 11:47 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Mountjoy
Today looks like the warmest upcoming period in Mountjoy at 83 degrees F.
Sunday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Wednesday Night at about 16 to 20 mph SW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 13, 2026 11:47 AM CDT
- Coverage
- 7 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
Showers and thunderstorms likely before 1am, then showers and thunderstorms likely between 1am and 3am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Southwest wind 5 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
A slight chance of rain showers before 8am. Mostly sunny, with a high near 72. North northwest wind 12 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 20%. New rainfall amounts between a quarter and half of an inch possible.
Partly cloudy, with a low around 52. West northwest wind 3 to 12 mph, with gusts as high as 18 mph.
Sunny, with a high near 75. West wind 3 to 10 mph, with gusts as high as 16 mph.
Mostly clear, with a low around 54. West southwest wind 2 to 8 mph.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 78. Southwest wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 58. Chance of precipitation is 50%.
A chance of rain showers before 7am, then a chance of showers and thunderstorms between 7am and 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 80. Chance of precipitation is 70%.
Showers and thunderstorms likely before 7pm, then showers and thunderstorms. Mostly cloudy, with a low around 65.
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 79.
A slight chance of showers and thunderstorms. Mostly clear, with a low around 59.
A slight chance of rain showers. Sunny, with a high near 81.
A slight chance of rain showers before 7pm, then a slight chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jun 13
|
Chance Showers And Thunderstorms
|
83°F |
10 to 14 mph
SSW
|
|
Tonight
Jun 13
|
Showers And Thunderstorms Likely
|
63°F |
5 to 10 mph
SW
|
|
Sunday
Jun 14
|
Slight Chance Rain Showers then Mostly Sunny
|
72°F |
12 to 16 mph
NNW
|
|
Sunday Night
Jun 14
|
Partly Cloudy
|
52°F |
3 to 12 mph
WNW
|
|
Monday
Jun 15
|
Sunny
|
75°F |
3 to 10 mph
W
|
|
Monday Night
Jun 15
|
Mostly Clear
|
54°F |
2 to 8 mph
WSW
|
|
Tuesday
Jun 16
|
Mostly Sunny then Chance Showers And Thunderstorms
|
78°F |
7 to 15 mph
SW
|
|
Tuesday Night
Jun 16
|
Chance Showers And Thunderstorms
|
58°F |
5 to 13 mph
SSW
|
|
Wednesday
Jun 17
|
Chance Showers And Thunderstorms
|
80°F |
7 to 18 mph
SSW
|
|
Wednesday Night
Jun 17
|
Showers And Thunderstorms Likely then Showers And Thunderstorms
|
65°F |
16 to 20 mph
SW
|
|
Thursday
Jun 18
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
79°F |
12 to 16 mph
W
|
|
Thursday Night
Jun 18
|
Slight Chance Showers And Thunderstorms
|
59°F |
2 to 9 mph
NW
|
|
Juneteenth
Jun 19
|
Slight Chance Rain Showers
|
81°F |
3 to 8 mph
WNW
|
|
Friday Night
Jun 19
|
Slight Chance Showers And Thunderstorms
|
61°F |
3 to 7 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Mountjoy.