Port Barrington, IL Weather Forecast
Local 7-day forecast
Smoke
Track current conditions, temperature changes, wind, and the full daily outlook for Port Barrington, IL in one place.
Smoke. Partly cloudy, with a low around 63. North northeast wind around 5 mph, with gusts as high as 10 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: Jul 19, 2026 4:11 AM CDT.
The active forecast window currently covers Jul 19 to Jul 25, 2026 for Port Barrington, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 19 to Jul 25, 2026
- Latest sync
- Jul 19, 2026 4:11 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Port Barrington
Tuesday looks like the warmest upcoming period in Port Barrington at 84 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Monday at about 0 to 15 mph SSW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 19, 2026 4:11 AM CDT
- Coverage
- 7 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
Smoke. Mostly sunny, with a high near 80. Northeast wind 0 to 5 mph.
Patchy smoke before 1am. Partly cloudy, with a low around 61. Southeast wind 0 to 5 mph.
A slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 83. South southwest wind 0 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Showers and thunderstorms likely. Partly cloudy, with a low around 69. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely before 7am. Sunny, with a high near 84. Chance of precipitation is 70%.
Mostly clear, with a low around 60.
Sunny, with a high near 76.
Mostly clear, with a low around 56.
Sunny, with a high near 80.
Partly cloudy, with a low around 61.
Partly sunny, with a high near 81.
Partly cloudy, with a low around 63.
Mostly sunny, with a high near 84.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 19
|
Smoke
|
63°F |
5 mph
NNE
|
|
Sunday
Jul 19
|
Smoke
|
80°F |
0 to 5 mph
NE
|
|
Sunday Night
Jul 19
|
Patchy Smoke
|
61°F |
0 to 5 mph
SE
|
|
Monday
Jul 20
|
Partly Sunny then Slight Chance Showers And Thunderstorms
|
83°F |
0 to 15 mph
SSW
|
|
Monday Night
Jul 20
|
Showers And Thunderstorms Likely
|
69°F |
10 to 15 mph
SW
|
|
Tuesday
Jul 21
|
Showers And Thunderstorms Likely then Sunny
|
84°F |
10 to 15 mph
WNW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
60°F |
5 to 15 mph
NNW
|
|
Wednesday
Jul 22
|
Sunny
|
76°F |
5 to 10 mph
N
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
56°F |
0 to 10 mph
N
|
|
Thursday
Jul 23
|
Sunny
|
80°F |
0 to 5 mph
W
|
|
Thursday Night
Jul 23
|
Partly Cloudy
|
61°F |
0 to 5 mph
SW
|
|
Friday
Jul 24
|
Partly Sunny
|
81°F |
0 to 5 mph
SSW
|
|
Friday Night
Jul 24
|
Partly Cloudy
|
63°F |
0 to 5 mph
S
|
|
Saturday
Jul 25
|
Mostly Sunny
|
84°F |
0 to 5 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Port Barrington.