Altona, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Altona, IL in one place.
A chance of showers and thunderstorms between 7am and 10am, then showers and thunderstorms likely. Mostly sunny, with a high near 90. West southwest wind 3 to 7 mph. Chance of precipitation is 70%. 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: Jul 15, 2026 3:01 AM CDT.
The active forecast window currently covers Jul 17 to Jul 21, 2026 for Altona, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 17 to Jul 21, 2026
- Latest sync
- Jul 15, 2026 3:01 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Altona
Saturday looks like the warmest upcoming period in Altona at 92 degrees F.
Saturday Night is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Tuesday at about 9 to 16 mph NNW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 15, 2026 3:01 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
Showers and thunderstorms likely before 7pm. Mostly clear, with a low around 72. Southwest wind around 7 mph, with gusts as high as 16 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Sunny, with a high near 92.
Mostly clear, with a low around 70.
Sunny, with a high near 89.
Partly cloudy, with a low around 71.
A slight chance of showers and thunderstorms after 7am. Mostly sunny, with a high near 91.
A slight chance of showers and thunderstorms. Mostly clear, with a low around 70.
A slight chance of showers and thunderstorms before 7am. Sunny, with a high near 85.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 17
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
90°F |
3 to 7 mph
WSW
|
|
Friday Night
Jul 17
|
Showers And Thunderstorms Likely then Mostly Clear
|
72°F |
7 mph
SW
|
|
Saturday
Jul 18
|
Sunny
|
92°F |
8 to 12 mph
W
|
|
Saturday Night
Jul 18
|
Mostly Clear
|
70°F |
6 to 10 mph
N
|
|
Sunday
Jul 19
|
Sunny
|
89°F |
7 mph
ESE
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
71°F |
5 to 8 mph
SSE
|
|
Monday
Jul 20
|
Slight Chance Showers And Thunderstorms
|
91°F |
8 to 14 mph
WSW
|
|
Monday Night
Jul 20
|
Slight Chance Showers And Thunderstorms
|
70°F |
9 to 14 mph
NW
|
|
Tuesday
Jul 21
|
Slight Chance Showers And Thunderstorms then Sunny
|
85°F |
9 to 16 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Altona.