Altona, IN Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Altona, IN in one place.
Mostly sunny, with a high near 82. Northwest wind 5 to 10 mph.
Local Weather Overview
This forecast page for Altona, IN 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: Aug 26, 2026 2:59 AM EDT.
The active forecast window currently covers Aug 27 to Sep 1, 2026 for Altona, IN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 27 to Sep 1, 2026
- Latest sync
- Aug 26, 2026 2:59 AM EDT
- Forecast office
- IWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Altona
Monday looks like the warmest upcoming period in Altona at 86 degrees F.
Friday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Sunday at about 5 to 15 mph S.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 26, 2026 2:59 AM EDT
- Coverage
- 6 days
- Time zone
- America/Indiana/Indianapolis
- Forecast office
- IWX
- Radar station
- KIWX
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 60. North wind 5 to 10 mph.
Sunny, with a high near 81.
Mostly clear, with a low around 58.
Mostly sunny, with a high near 82.
Partly cloudy, with a low around 62.
Mostly sunny, with a high near 85.
Mostly cloudy, with a low around 68.
Partly sunny, with a high near 86.
A chance of rain showers after 2am. Mostly cloudy, with a low around 68.
A chance of rain showers before 8am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Aug 27
|
Mostly Sunny
|
82°F |
5 to 10 mph
NW
|
|
Thursday Night
Aug 27
|
Mostly Clear
|
60°F |
5 to 10 mph
N
|
|
Friday
Aug 28
|
Sunny
|
81°F |
5 mph
N
|
|
Friday Night
Aug 28
|
Mostly Clear
|
58°F |
0 to 5 mph
NE
|
|
Saturday
Aug 29
|
Mostly Sunny
|
82°F |
0 to 5 mph
SE
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
62°F |
0 to 5 mph
SE
|
|
Sunday
Aug 30
|
Mostly Sunny
|
85°F |
5 to 15 mph
S
|
|
Sunday Night
Aug 30
|
Mostly Cloudy
|
68°F |
5 to 10 mph
SW
|
|
Monday
Aug 31
|
Partly Sunny
|
86°F |
5 to 10 mph
SW
|
|
Monday Night
Aug 31
|
Mostly Cloudy then Chance Rain Showers
|
68°F |
5 to 10 mph
SW
|
|
Tuesday
Sep 1
|
Chance Showers And Thunderstorms
|
86°F |
5 to 10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Altona.