Raritan, IL Weather Forecast
Local 7-day forecast
Rain Showers Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Raritan, IL in one place.
Rain showers likely before 1pm. Mostly sunny, with a high near 52. Chance of precipitation is 60%.
Local Weather Overview
This forecast page for Raritan, 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 7:03 AM CDT.
The active forecast window currently covers Apr 18 to Apr 22, 2026 for Raritan, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 18 to Apr 22, 2026
- Latest sync
- Apr 16, 2026 7:03 AM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Raritan
Tuesday looks like the warmest upcoming period in Raritan at 73 degrees F.
Saturday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Saturday at about 15 to 20 mph NW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 16, 2026 7:03 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KDVN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 34.
Sunny, with a high near 57.
Mostly clear, with a low around 37.
Sunny, with a high near 66.
Mostly clear, with a low around 50.
Mostly sunny, with a high near 73.
Mostly clear, with a low around 52.
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 73.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 18
|
Rain Showers Likely
|
52°F |
15 to 20 mph
NW
|
|
Saturday Night
Apr 18
|
Mostly Clear
|
34°F |
10 to 15 mph
W
|
|
Sunday
Apr 19
|
Sunny
|
57°F |
10 to 15 mph
NW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
37°F |
5 to 10 mph
NE
|
|
Monday
Apr 20
|
Sunny
|
66°F |
10 to 15 mph
S
|
|
Monday Night
Apr 20
|
Mostly Clear
|
50°F |
10 to 15 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
73°F |
15 mph
SW
|
|
Tuesday Night
Apr 21
|
Mostly Clear
|
52°F |
10 to 15 mph
SW
|
|
Wednesday
Apr 22
|
Mostly Sunny then Slight Chance Rain Showers
|
73°F |
10 to 15 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Raritan.