10-Day Weather Forecast - Altamont, IL

Mostly sunny. Highs in the upper 50s. Southwest winds 10 to 15 mph with gusts up to 30 mph.

Mostly cloudy. Lows in the upper 30s. West winds 5 to 10 mph with gusts up to 20 mph.

Mostly cloudy. Much cooler with highs in the upper 30s. Temperature falling to around 30 in the afternoon. Northwest winds 15 to 20 mph with gusts up to 30 mph.

Mostly cloudy in the evening then clearing. Much cooler with lows around 16. Northwest winds 10 to 15 mph. Gusts up to 30 mph in the evening.

Sunny cooler with highs in the upper 20s.

Mostly cloudy. Lows around 20. Highs in the upper 30s.

Mostly cloudy. Lows around 20. Highs in the upper 30s.

Mostly cloudy. Lows around 20. Highs in the upper 30s.

Mostly cloudy. Highs in the mid 20s. Lows around 10 above. Wind chill values as low as 5 below.

Mostly cloudy. Highs in the mid 20s. Lows around 10 above. Wind chill values as low as 5 below.

Partly cloudy. Highs in the lower 20s. Lows around 10 above. Wind chill values as low as 5 below.

Partly cloudy. Highs in the lower 20s. Lows around 10 above. Wind chill values as low as 5 below.

Mostly sunny. Highs in the upper 20s.

Clear. Low temperature around 15F. Dew point will be around 13F with an average humidity of 80%. Winds will be 3 mph from the SW.

Sunny. High temperature around 27F. Dew point will be around 15F with an average humidity of 72%. Winds will be 3 mph from the SE.

Mostly clear. Low temperature around 21F. Dew point will be around 19F with an average humidity of 82%. Winds will be 5 mph from the SE.

Mostly sunny. High temperature around 34F. Dew point will be around 25F with an average humidity of 81%. Winds will be 7 mph from the SE.

Mostly cloudy with a slight chance of rain-snow mix. Chance of precipitation 25%. Low temperature around 29F. Dew point will be around 29F with an average humidity of 93%. Winds will be 6 mph from the SE.