World > North America > United States > Illinois > Altamont  

Altamont, IL Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

Altamont, IL Weather Forecast

Current Conditions

Settings
Altamont IL weather - Overcast - 61°F
Overcast
61°F
Updated 5:05 am
Feels Like 60°F
Humidity 93%
Wind E 3 mph
Barometer  30.24 in
Dew Point 59°F
Altamont IL weather - Overcast - 16°C
Overcast
16°C
Updated 5:05 am
Feels Like 15°C
Humidity 93%
Wind E 5 km/h
Barometer  102.4 kPa
Dew Point 15°C
WX Settings

Altamont Weather Forecast

TODAY TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY
Altamont, IL Weather - Today Partly Sunny Altamont, IL Weather - Tonight Mostly Cloudy Altamont, IL Weather - Saturday Mostly Sunny Altamont, IL Weather - Saturday Night Partly Cloudy Altamont, IL Weather - Sunday Mostly Sunny Altamont, IL Weather - Sunday Night Mostly Clear Altamont, IL Weather - Monday Mostly Clear Altamont, IL Weather - Tuesday Mostly Sunny Altamont, IL Weather - Tuesday Night Chance Of Showers Altamont, IL Weather - Wednesday Chance Of Showers Altamont, IL Weather - Wednesday Night Chance Of Showers Altamont, IL Weather - Thursday Chance Of Showers
Partly Sunny Mostly Cloudy Mostly Sunny Partly Cloudy Mostly Sunny Mostly Clear Mostly Clear Mostly Sunny Chance of Showers Chance of Showers Chance of Showers Chance of Showers
Hi: 75°FHi: 24°C
 Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
 Lo: 55°FLo: 13°C Hi: 75°FHi: 24°C
 Hi: 75°FHi: 24°C
Lo: 51°FLo: 11°C		 Hi: 75°FHi: 24°C
Lo: 51°FLo: 11°C		 Hi: 79°FHi: 26°C
 Lo: 61°FLo: 16°C Hi: 79°FHi: 26°C
 Lo: 61°FLo: 16°C Hi: 79°FHi: 26°C
POP: 50% POP: 50% POP: 40% POP: 50%
POP = Probability of Precipitation.
Weather Outlook Updated: 337 AM CDT Fri Sep 25 2026 Altamont, IL Weather - WeatherWorld.com

Trending Headlines

Altamont Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Altamont Quick Facts

National Two Day Weather Forecast


E-mail the Altamont Weather Forecast

Voice your opinion or tell us about page issues...

Altamont Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 459 AM CDT Fri Sep 25 2026

Key Messages

  • Quiet through Midday Tuesday: Expect stable conditions across Central Illinois with highs in the upper 60s to mid-70s and only occasional sprinkles.
  • Warming Trend Midweek: Temperatures and humidity will rise Wednesday and Thursday, pushing high temperatures near 80F.
  • Heavy Rain Potential Wednesday-Friday: The primary weather hazard arrives Wednesday through Friday as a system bringing tropical moisture moves in. There is a 20-40% chance for rainfall to exceed 2 inches across our area...