Hainesville, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Hainesville, IL in one place.
Mostly sunny, with a high near 50.
Local Weather Overview
This forecast page for Hainesville, 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 15, 2026 7:44 AM CDT.
The active forecast window currently covers Apr 19 to Apr 21, 2026 for Hainesville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 19 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 7:44 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Hainesville
Tuesday looks like the warmest upcoming period in Hainesville at 69 degrees F.
Sunday Night is the coolest period ahead with temperatures near 31 degrees F.
The strongest winds are forecast for Sunday at about 15 mph WNW.
The forecast from Apr 19 through Apr 21 stays mostly dry.
Forecast Details
- Last updated
- Apr 15, 2026 7:44 AM CDT
- Coverage
- 3 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KMKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Patchy frost after 3am. Partly cloudy, with a low around 31.
Patchy frost before 8am. Sunny, with a high near 58.
Partly cloudy, with a low around 45.
Mostly sunny, with a high near 69.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Apr 19
|
Mostly Sunny
|
50°F |
15 mph
WNW
|
|
Sunday Night
Apr 19
|
Partly Cloudy then Patchy Frost
|
31°F |
5 to 10 mph
NW
|
|
Monday
Apr 20
|
Patchy Frost then Sunny
|
58°F |
5 to 10 mph
WSW
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
45°F |
10 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
69°F |
10 to 15 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Hainesville.