Roslyn Weather Forecast
- 72
- 90
Thunderstorms Likely
- 69
- 84
Chance Thunderstorms
- 71
- 86
Thunderstorms Likely
- 73
- 90
Mostly Sunny
- 73
- 93
Slight Chance Thunderstorms
- 67
- 90
Slight Chance Thunderstorms
- 62
- 80
Chance Thunderstorms
Today 24 Jul Lake
Mostly cloudy. A slight chance of Showers and Thunderstorms in the Morning, then Showers and Thunderstorms likely in the afternoon. Some Thunderstorms may produce heavy rainfall in the late morning and afternoon. Continued hot and humid. Highs in the lower 90s. Temperature falling into the lower 80s in the afternoon. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 70 percent. Heat index Values up to 103.
Tonight 24 Jul Lake
Mostly cloudy. A slight chance of Thunderstorms with isolated Showers late in the Evening, then a slight chance of Showers and Thunderstorms after midnight. Lows in the lower 70s. West Winds around 5 Mph. Chance of precipitation 30 percent.
Roslyn Temperature Statistics
July Temperature
Chicago / Wheeling, Pal-Waukee Airport (11.8 miles)
Lowest 18 July, 2025
59.6 °FAverage July
76.1 °FHighest 5 July, 2025
93.7 °F
Climate (2020–Present)
Chicago / Wheeling, Pal-Waukee Airport (11.8 miles)
Average Low 2020–2025
44.1 °FAverage 2020–2025
52.9 °FAverage High 2020–2025
61.5 °F