Lemont, PA Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Lemont, PA in one place.
Mostly cloudy, with a low around 50. North wind around 5 mph.
Local Weather Overview
This forecast page for Lemont, PA 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 15, 2026 4:19 AM EDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Lemont, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 4:19 AM EDT
- Forecast office
- CTP
- Source
- NOAA / NWS
Daily Outlook
This Week in Lemont
Friday looks like the warmest upcoming period in Lemont at 76 degrees F.
Saturday Night is the coolest period ahead with temperatures near 31 degrees F.
The strongest winds are forecast for Friday at about 8 to 16 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 4:19 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- CTP
- Radar station
- KCCX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly sunny, with a high near 64. East wind 2 to 6 mph.
A chance of rain between 11pm and 2am, then rain and a slight chance of thunderstorms. Cloudy, with a low around 54. South wind 5 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain before 8am, then a slight chance of showers and thunderstorms between 1pm and 2pm, then showers and thunderstorms. Mostly cloudy, with a high near 76. Southwest wind 8 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of rain showers before 2am. Mostly cloudy, with a low around 40. Northwest wind around 14 mph, with gusts as high as 30 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly sunny, with a high near 50.
Widespread frost after 11pm. Clear, with a low around 31.
Widespread frost before 10am. Sunny, with a high near 57.
Areas of frost after 4am. Mostly clear, with a low around 33.
Areas of frost before 9am. Sunny, with a high near 61.
Partly cloudy, with a low around 38.
Mostly sunny, with a high near 64.
Mostly clear, with a low around 38.
Sunny, with a high near 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Oct 15
|
Mostly Cloudy
|
50°F |
5 mph
N
|
|
Thursday
Oct 15
|
Partly Sunny
|
64°F |
2 to 6 mph
E
|
|
Thursday Night
Oct 15
|
Light Rain
|
54°F |
5 to 9 mph
S
|
|
Friday
Oct 16
|
Chance Light Rain then Slight Chance Showers And Thunderstorms
|
76°F |
8 to 16 mph
SW
|
|
Friday Night
Oct 16
|
Slight Chance Rain Showers
|
40°F |
14 mph
NW
|
|
Saturday
Oct 17
|
Mostly Sunny
|
50°F |
9 to 15 mph
N
|
|
Saturday Night
Oct 17
|
Widespread Frost
|
31°F |
2 to 8 mph
NW
|
|
Sunday
Oct 18
|
Widespread Frost then Sunny
|
57°F |
1 to 5 mph
SW
|
|
Sunday Night
Oct 18
|
Mostly Clear then Areas Of Frost
|
33°F |
0 to 3 mph
SE
|
|
Monday
Oct 19
|
Areas Of Frost then Sunny
|
61°F |
0 to 3 mph
E
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
38°F |
2 mph
NE
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
64°F |
2 mph
N
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
38°F |
2 mph
N
|
|
Wednesday
Oct 21
|
Sunny
|
63°F |
3 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Lemont.