Fosterburg, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Fosterburg, IL in one place.
Sunny, with a high near 93. Heat index values as high as 100. Southwest wind 6 to 14 mph.
Local Weather Overview
This forecast page for Fosterburg, 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 9, 2026 2:15 AM CDT.
The active forecast window currently covers Jun 10 to Jun 15, 2026 for Fosterburg, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 10 to Jun 15, 2026
- Latest sync
- Jun 9, 2026 2:15 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Fosterburg
Wednesday looks like the warmest upcoming period in Fosterburg at 93 degrees F.
Sunday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Thursday at about 8 to 16 mph S.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 9, 2026 2:15 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
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 74. South wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
A chance of rain showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 92. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely between 7pm and 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 70%.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 84. Chance of precipitation is 20%.
A slight chance of rain showers after 1am. Mostly clear, with a low around 65. Chance of precipitation is 20%.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 40%.
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 83. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. Chance of precipitation is 30%.
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 10
|
Sunny
|
93°F |
6 to 14 mph
SW
|
|
Wednesday Night
Jun 10
|
Chance Showers And Thunderstorms
|
74°F |
8 to 13 mph
S
|
|
Thursday
Jun 11
|
Chance Showers And Thunderstorms
|
92°F |
8 to 16 mph
S
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
67°F |
6 to 14 mph
W
|
|
Friday
Jun 12
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
84°F |
7 mph
NW
|
|
Friday Night
Jun 12
|
Mostly Clear then Slight Chance Rain Showers
|
65°F |
1 to 5 mph
SW
|
|
Saturday
Jun 13
|
Slight Chance Showers And Thunderstorms
|
87°F |
2 to 9 mph
SW
|
|
Saturday Night
Jun 13
|
Chance Showers And Thunderstorms
|
66°F |
3 to 7 mph
W
|
|
Sunday
Jun 14
|
Chance Showers And Thunderstorms
|
83°F |
6 to 10 mph
N
|
|
Sunday Night
Jun 14
|
Chance Showers And Thunderstorms
|
63°F |
5 to 10 mph
N
|
|
Monday
Jun 15
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
80°F |
6 to 10 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fosterburg.