10-Day Weather Forecast - Merna, IL

Showers with a chance of thunderstorms this morning then showers and thunderstorms this afternoon. Some thunderstorms may be severe with heavy rainfall. Locally heavy rainfall possible this morning. Windy with highs in the upper 70s. South winds 15 to 20 mph with gusts up to 30 mph increasing to 20 to 30 mph with gusts up to 45 mph this afternoon. Chance of rain near 100 percent.

Showers and thunderstorms in the evening then mostly clear after midnight. Some thunderstorms may be severe with heavy rainfall. Breezy with lows around 60. West winds 15 to 25 mph. Chance of rain near 100 percent.

Mostly sunny. Highs in the lower 70s. West winds 10 to 15 mph with gusts up to 25 mph.

Mostly clear. Lows in the mid 50s. Northwest winds 5 to 10 mph.

Sunny. Highs in the upper 70s. Northwest winds 10 to 15 mph.

Mostly clear. Lows in the upper 50s.

Mostly sunny. Highs in the lower 80s.

Partly cloudy in the evening then mostly cloudy with a chance of showers after midnight. Lows in the lower 60s. Chance of rain 40 percent.

Showers likely in the morning then showers with a chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 80 percent.

Showers likely with a chance of thunderstorms in the evening then a chance of showers after midnight. Lows around 60. Chance of rain 70 percent.

Partly cloudy. Highs in the upper 70s. Lows in the mid 50s.

Partly cloudy. Highs in the upper 70s. Lows in the mid 50s.

Partly cloudy. Highs in the upper 70s. Lows in the mid 50s.

Mostly clear. Low temperature around 61F. Dew point will be around 59F with an average humidity of 82%. Winds will be 4 mph from the NE.

Sunny. High temperature around 77F. Dew point will be around 62F with an average humidity of 74%. Winds will be 1 mph from the SE.

Clear. Low temperature around 62F. Dew point will be around 62F with an average humidity of 83%. Winds will be 1 mph from the N.

Sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 79F. Dew point will be around 64F with an average humidity of 74%. Winds will be 2 mph from the SW.

Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 65F. Dew point will be around 65F with an average humidity of 84%. Winds will be 2 mph from the S.