Alton, IN Weather Forecast

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Alton, IN Weather Forecast

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Alton IN weather  - Clear - 51°F
Clear
51°F
Updated 3:21 am
Feels Like 46°F
Humidity 87%
Wind ENE 5 mph
Barometer  30.3 in
Dew Point 48°F
Alton IN weather  - Clear - 11°C
Clear
11°C
Updated 3:21 am
Feels Like 8°C
Humidity 87%
Wind ENE 8 km/h
Barometer  102.6 kPa
Dew Point 9°C

Alton Weather Forecast

TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY
Alton, IN Weather - Tonight Patchy Fog Alton, IN Weather - Saturday Sunny Alton, IN Weather - Saturday Night Mostly Clear Alton, IN Weather - Sunday Sunny Alton, IN Weather - Sunday Night Mostly Clear Alton, IN Weather - Monday Mostly Sunny Alton, IN Weather - Monday Night Partly Cloudy Alton, IN Weather - Tuesday Partly Sunny Alton, IN Weather - Tuesday Night Mostly Cloudy Alton, IN Weather - Wednesday Mostly Sunny Alton, IN Weather - Wednesday Night Mostly Clear Alton, IN Weather - Thursday Sunny
Patchy Fog Sunny Mostly Clear Sunny Mostly Clear Mostly Sunny Partly Cloudy Partly Sunny Mostly Cloudy Mostly Sunny Mostly Clear Sunny
Lo: 45°FLo: 7°C Hi: 71°FHi: 22°C
Lo: 45°FLo: 7°C Hi: 75°FHi: 24°C
Lo: 45°FLo: 7°C Hi: 75°FHi: 24°C
Lo: 45°FLo: 7°C Hi: 75°FHi: 24°C
Lo: 49°FLo: 9°C Hi: 75°FHi: 24°C
Lo: 49°FLo: 9°C Hi: 75°FHi: 24°C
POP = Probability of Precipitation.
Weather Outlook Updated: 408 PM EDT Fri Oct 23 2026 Alton, IN Weather - WeatherWorld.com

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Issued: 211 AM EDT Sat Oct 24 2026

Key Messages

  • Dry weather continues through next Friday. Expect chilly nights and warm afternoons. Patchy fog will be possible each morning, mainly in river valleys.
  • The next significant chance for widespread rainfall is not expected until the first few days of November (11/1-2).

Discussion

... Issued at 211 AM EDT Sat Oct 24 2026

This Morning through the Weekend...

It is another clear and calm morning across the region as the influence of broad sfc high pressure and upper level ridging continues to b...