Westmont, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Westmont, IL in one place.
Mostly sunny. High near 71, with temperatures falling to around 69 in the afternoon. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Local Weather Overview
This forecast page for Westmont, 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: Oct 8, 2026 9:25 AM CDT.
The active forecast window currently covers Oct 8 to Oct 14, 2026 for Westmont, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 8 to Oct 14, 2026
- Latest sync
- Oct 8, 2026 9:25 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Westmont
Saturday looks like the warmest upcoming period in Westmont at 80 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Monday Night at about 10 to 15 mph W.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 8, 2026 9:25 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
Partly cloudy, with a low around 52. Southwest wind 0 to 5 mph.
A chance of rain showers between 10am and 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm. Partly sunny. High near 74, with temperatures falling to around 72 in the afternoon. South southeast wind 0 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 61. South southeast wind around 10 mph, with gusts as high as 20 mph.
Sunny, with a high near 80. South wind around 10 mph, with gusts as high as 20 mph.
Mostly cloudy, with a low around 61.
A slight chance of rain showers between 7am and 1pm. Partly sunny, with a high near 72.
Partly cloudy, with a low around 57.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 78.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
A chance of rain showers before 7am. Partly sunny, with a high near 66.
Partly cloudy, with a low around 47.
Mostly sunny, with a high near 63.
A chance of rain showers after 7pm. Partly cloudy, with a low around 50.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Oct 8
|
Mostly Sunny
|
71°F |
5 to 10 mph
WNW
|
|
Tonight
Oct 8
|
Partly Cloudy
|
52°F |
0 to 5 mph
SW
|
|
Friday
Oct 9
|
Chance Rain Showers
|
74°F |
0 to 10 mph
SSE
|
|
Friday Night
Oct 9
|
Mostly Clear
|
61°F |
10 mph
SSE
|
|
Saturday
Oct 10
|
Sunny
|
80°F |
10 mph
S
|
|
Saturday Night
Oct 10
|
Mostly Cloudy
|
61°F |
5 to 10 mph
SSE
|
|
Sunday
Oct 11
|
Slight Chance Rain Showers
|
72°F |
5 mph
ESE
|
|
Sunday Night
Oct 11
|
Partly Cloudy
|
57°F |
0 to 5 mph
S
|
|
Columbus Day
Oct 12
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
78°F |
5 to 10 mph
SW
|
|
Monday Night
Oct 12
|
Chance Showers And Thunderstorms
|
57°F |
10 to 15 mph
W
|
|
Tuesday
Oct 13
|
Chance Rain Showers then Partly Sunny
|
66°F |
10 to 15 mph
NNW
|
|
Tuesday Night
Oct 13
|
Partly Cloudy
|
47°F |
5 to 10 mph
NNW
|
|
Wednesday
Oct 14
|
Mostly Sunny
|
63°F |
5 to 10 mph
NNE
|
|
Wednesday Night
Oct 14
|
Chance Rain Showers
|
50°F |
5 to 10 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Westmont.
