Altona, IL Weather Forecast
Local 7-day forecast
Rain Showers Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Altona, IL in one place.
Rain showers likely before 1pm. Mostly sunny, with a high near 52. Northwest wind around 18 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Altona, 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 7:38 AM CDT.
The active forecast window currently covers Apr 18 to Apr 22, 2026 for Altona, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 18 to Apr 22, 2026
- Latest sync
- Apr 16, 2026 7:38 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Altona
Tuesday looks like the warmest upcoming period in Altona at 74 degrees F.
Saturday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Saturday at about 18 mph NW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 16, 2026 7:38 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KDVN
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Patchy frost after 3am. Mostly clear, with a low around 34. West northwest wind 8 to 16 mph, with gusts as high as 28 mph.
Patchy frost before 8am. Sunny, with a high near 56.
Mostly clear, with a low around 35.
Sunny, with a high near 65.
Mostly clear, with a low around 50.
Mostly sunny, with a high near 74.
Mostly clear, with a low around 52.
A slight chance of rain showers after 1pm. Sunny, with a high near 73.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 18
|
Rain Showers Likely
|
52°F |
18 mph
NW
|
|
Saturday Night
Apr 18
|
Mostly Clear then Patchy Frost
|
34°F |
8 to 16 mph
WNW
|
|
Sunday
Apr 19
|
Patchy Frost then Sunny
|
56°F |
8 to 16 mph
WNW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
35°F |
6 to 10 mph
NNE
|
|
Monday
Apr 20
|
Sunny
|
65°F |
6 to 13 mph
SSE
|
|
Monday Night
Apr 20
|
Mostly Clear
|
50°F |
13 mph
SSW
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
74°F |
13 to 16 mph
SW
|
|
Tuesday Night
Apr 21
|
Mostly Clear
|
52°F |
9 to 13 mph
SW
|
|
Wednesday
Apr 22
|
Sunny then Slight Chance Rain Showers
|
73°F |
9 to 13 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Altona.