Dorchester, IL Weather Forecast
Local 7-day forecast
Mostly Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Dorchester, IL in one place.
Mostly clear, with a low around 59. Northeast wind around 7 mph.
Local Weather Overview
This forecast page for Dorchester, 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 2, 2026 6:24 AM CDT.
The active forecast window currently covers Jun 2 to Jun 8, 2026 for Dorchester, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 2 to Jun 8, 2026
- Latest sync
- Jun 2, 2026 6:24 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Dorchester
Saturday looks like the warmest upcoming period in Dorchester at 86 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Tuesday at about 8 to 12 mph NE.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 2, 2026 6:24 AM CDT
- Coverage
- 7 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
Sunny, with a high near 79. Northeast wind 8 to 12 mph.
Clear, with a low around 54. East wind 3 to 10 mph.
Sunny, with a high near 80. East wind around 7 mph.
Mostly clear, with a low around 57. Southeast wind 3 to 7 mph.
Sunny, with a high near 84.
Partly cloudy, with a low around 61.
Mostly sunny, with a high near 84.
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 50%.
A chance of rain showers before 1pm, then showers and thunderstorms likely. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jun 2
|
Mostly Clear
|
59°F |
7 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
79°F |
8 to 12 mph
NE
|
|
Tuesday Night
Jun 2
|
Clear
|
54°F |
3 to 10 mph
E
|
|
Wednesday
Jun 3
|
Sunny
|
80°F |
7 mph
E
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
57°F |
3 to 7 mph
SE
|
|
Thursday
Jun 4
|
Sunny
|
84°F |
3 to 10 mph
S
|
|
Thursday Night
Jun 4
|
Partly Cloudy
|
61°F |
6 to 10 mph
S
|
|
Friday
Jun 5
|
Mostly Sunny
|
84°F |
6 to 12 mph
S
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
65°F |
6 to 10 mph
S
|
|
Saturday
Jun 6
|
Chance Showers And Thunderstorms
|
86°F |
6 to 10 mph
S
|
|
Saturday Night
Jun 6
|
Chance Showers And Thunderstorms
|
66°F |
3 to 8 mph
SW
|
|
Sunday
Jun 7
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
86°F |
3 to 9 mph
S
|
|
Sunday Night
Jun 7
|
Chance Showers And Thunderstorms
|
67°F |
5 to 8 mph
SE
|
|
Monday
Jun 8
|
Showers And Thunderstorms Likely
|
85°F |
7 to 10 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Dorchester.