Algonquin Weather Forecast
- 36
- 51
Mostly Cloudy
- 39
- 48
Rain Showers
- 30
- 53
Slight Chance Rain Showers
- 29
- 49
Partly Sunny
- 21
- 41
Slight Chance Snow Showers
- 30
- 47
Mostly Sunny
Today 3 Apr McHenry
Mostly cloudy. Breezy. Highs in the lower 50s. West Winds 15 to 20 Mph, Diminishing to 10 to 15 Mph in the afternoon. Gusts up to 30 Mph.
Tonight 3 Apr McHenry
Mostly cloudy. Lows in the upper 30s. North Winds around 5 Mph, becoming northeast after midnight.
Algonquin Temperature Statistics
April Temperature
Chicago / West Chicago, Dupage Airport (18.6 miles)
Lowest 1 April, 2025
27 °FAverage April
38.4 °FHighest 1 April, 2025
46 °F
Climate (2020–Present)
Chicago / West Chicago, Dupage Airport (18.6 miles)
Average Low 2020–2025
42 °FAverage 2020–2025
51.6 °FAverage High 2020–2025
61.1 °F