Boise, ID Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 41 °F 5 °C Feb 37 °F 3 °C Mar 50 °F 10 °C Apr 60 °F 16 °C May 68 °F 20 °C Jun 77 °F 25 °C Jul 86 °F 30 °C Aug 88 °F 31 °C Sep 72 °F 22 °C Oct 55 °F 13 °C Nov 50 °F 10 °C Dec 39 °F 4 °C Humidity Jan 70% Feb 69% Mar 59% Apr 57% May 45% Jun 39% Jul 34% Aug 33% Sep 53% Oct 46% Nov 54% Dec 76% Rain Jan 17mm Feb 46mm Mar 26mm Apr 39mm May 54mm Jun 6mm Jul 7mm Aug 3mm Sep 22mm Oct 8mm Nov 6mm Dec 28mm Clouds Jan 40% Feb 73% Mar 38% Apr 46% May 40% Jun 16% Jul 9% Aug 9% Sep 19% Oct 19% Nov 27% Dec 71% Air quality US AQI Jan 0 Feb 23 Mar 60 Apr 36 May 42 Jun 63 Jul 0 Aug 0 Sep 0 Oct 0 Nov 0 Dec 0 Sun Jan 2UVI Feb 2UVI Mar 4UVI Apr 6UVI May 6UVI Jun 8UVI Jul 9UVI Aug 8UVI Sep 6UVI Oct 4UVI Nov 2UVI Dec 1UVI
