Jamaica, IL Weather Forecast
Local 7-day forecast
Patchy Frost then Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Jamaica, IL in one place.
Patchy frost before 8am. Sunny, with a high near 57. West northwest wind 8 to 20 mph, with gusts as high as 29 mph.
Local Weather Overview
This forecast page for Jamaica, 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 8:20 PM CDT.
The active forecast window currently covers Apr 19 to Apr 23, 2026 for Jamaica, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 19 to Apr 23, 2026
- Latest sync
- Apr 16, 2026 8:20 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Jamaica
Tuesday looks like the warmest upcoming period in Jamaica at 76 degrees F.
Sunday Night is the coolest period ahead with temperatures near 35 degrees F.
The strongest winds are forecast for Tuesday at about 13 to 21 mph SW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Apr 16, 2026 8:20 PM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Areas of frost after 3am. Mostly clear, with a low around 35. North northeast wind 2 to 13 mph, with gusts as high as 21 mph.
Areas of frost before 8am. Sunny, with a high near 63.
Mostly clear, with a low around 48.
Mostly sunny, with a high near 76.
Partly cloudy, with a low around 55.
Mostly sunny, with a high near 76.
Partly cloudy, with a low around 52.
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 76.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Apr 19
|
Patchy Frost then Sunny
|
57°F |
8 to 20 mph
WNW
|
|
Sunday Night
Apr 19
|
Mostly Clear then Areas Of Frost
|
35°F |
2 to 13 mph
NNE
|
|
Monday
Apr 20
|
Areas Of Frost then Sunny
|
63°F |
2 to 8 mph
SE
|
|
Monday Night
Apr 20
|
Mostly Clear
|
48°F |
7 to 13 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
76°F |
13 to 21 mph
SW
|
|
Tuesday Night
Apr 21
|
Partly Cloudy
|
55°F |
9 to 14 mph
SW
|
|
Wednesday
Apr 22
|
Mostly Sunny
|
76°F |
10 mph
WSW
|
|
Wednesday Night
Apr 22
|
Partly Cloudy
|
52°F |
8 mph
SSE
|
|
Thursday
Apr 23
|
Mostly Sunny then Slight Chance Rain Showers
|
76°F |
7 to 13 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Jamaica.