New Haven, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for New Haven, IL in one place.
Showers and thunderstorms. Mostly cloudy, with a high near 70. West wind around 14 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Local Weather Overview
This forecast page for New Haven, 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: Apr 16, 2026 1:27 PM CDT.
The active forecast window currently covers Apr 18 to Apr 22, 2026 for New Haven, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 18 to Apr 22, 2026
- Latest sync
- Apr 16, 2026 1:27 PM CDT
- Forecast office
- PAH
- Source
- NOAA / NWS
Daily Outlook
This Week in New Haven
Wednesday looks like the warmest upcoming period in New Haven at 78 degrees F.
Saturday Night is the coolest period ahead with temperatures near 40 degrees F.
The strongest winds are forecast for Saturday at about 14 mph W.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 16, 2026 1:27 PM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- PAH
- Radar station
- KVWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Rain showers likely before 1am. Partly cloudy, with a low around 40. Northwest wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
Sunny, with a high near 64. West northwest wind 6 to 12 mph, with gusts as high as 18 mph.
Clear, with a low around 41. North northeast wind 3 to 7 mph.
Sunny, with a high near 69. South wind around 7 mph.
Mostly clear, with a low around 49. South wind around 6 mph.
Sunny, with a high near 77. South southwest wind 6 to 12 mph, with gusts as high as 20 mph.
Partly cloudy, with a low around 54. Southwest wind around 8 mph.
A slight chance of rain showers between 7am and 1pm, then a slight chance of showers and thunderstorms. Sunny, with a high near 78. Southwest wind 6 to 10 mph.
A slight chance of showers and thunderstorms. Mostly clear, with a low around 55. South southwest wind around 8 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 18
|
Showers And Thunderstorms
|
70°F |
14 mph
W
|
|
Saturday Night
Apr 18
|
Rain Showers Likely
|
40°F |
6 to 13 mph
NW
|
|
Sunday
Apr 19
|
Sunny
|
64°F |
6 to 12 mph
WNW
|
|
Sunday Night
Apr 19
|
Clear
|
41°F |
3 to 7 mph
NNE
|
|
Monday
Apr 20
|
Sunny
|
69°F |
7 mph
S
|
|
Monday Night
Apr 20
|
Mostly Clear
|
49°F |
6 mph
S
|
|
Tuesday
Apr 21
|
Sunny
|
77°F |
6 to 12 mph
SSW
|
|
Tuesday Night
Apr 21
|
Partly Cloudy
|
54°F |
8 mph
SW
|
|
Wednesday
Apr 22
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
78°F |
6 to 10 mph
SW
|
|
Wednesday Night
Apr 22
|
Slight Chance Showers And Thunderstorms
|
55°F |
8 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around New Haven.