Port Barrington, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Port Barrington, IL in one place.
Sunny, with a high near 81. South southeast wind 0 to 5 mph, with gusts as high as 15 mph.
Local Weather Overview
This forecast page for Port Barrington, 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 3:27 AM CDT.
The active forecast window currently covers Jun 3 to Jun 8, 2026 for Port Barrington, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 3 to Jun 8, 2026
- Latest sync
- Jun 2, 2026 3:27 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Port Barrington
Thursday looks like the warmest upcoming period in Port Barrington at 87 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Thursday at about 5 to 15 mph SW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 2, 2026 3:27 AM CDT
- Coverage
- 6 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
Partly cloudy, with a low around 59. South southeast wind around 5 mph, with gusts as high as 15 mph.
Mostly sunny, with a high near 87.
Mostly cloudy, with a low around 66.
A slight chance of rain showers between 7am and 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 86.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 66.
Showers and thunderstorms likely. Mostly cloudy, with a high near 84.
Showers and thunderstorms likely 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 64.
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 84.
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
A slight chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 3
|
Sunny
|
81°F |
0 to 5 mph
SSE
|
|
Wednesday Night
Jun 3
|
Partly Cloudy
|
59°F |
5 mph
SSE
|
|
Thursday
Jun 4
|
Mostly Sunny
|
87°F |
5 to 15 mph
SW
|
|
Thursday Night
Jun 4
|
Mostly Cloudy
|
66°F |
10 mph
SW
|
|
Friday
Jun 5
|
Chance Showers And Thunderstorms
|
86°F |
10 to 15 mph
SW
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
66°F |
5 to 10 mph
SW
|
|
Saturday
Jun 6
|
Showers And Thunderstorms Likely
|
84°F |
5 mph
SW
|
|
Saturday Night
Jun 6
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
64°F |
0 to 5 mph
N
|
|
Sunday
Jun 7
|
Chance Showers And Thunderstorms
|
84°F |
5 to 10 mph
NE
|
|
Sunday Night
Jun 7
|
Slight Chance Showers And Thunderstorms
|
65°F |
0 to 10 mph
E
|
|
Monday
Jun 8
|
Chance Showers And Thunderstorms
|
85°F |
5 to 10 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Port Barrington.