Sandpoint, ID Weather OverviewScoresFors & AgainstsWeatherPhotos Average Temperature Jan 36 °F2 °C Feb 27 °F-3 °C Mar 43 °F6 °C Apr 52 °F11 °C May 66 °F19 °C Jun 70 °F21 °C Jul 75 °F24 °C Aug 75 °F24 °C Sep 64 °F18 °C Oct 48 °F9 °C Nov 41 °F5 °C Dec 34 °F1 °C Humidity Jan 80% Feb 75% Mar 67% Apr 67% May 50% Jun 57% Jul 58% Aug 52% Sep 70% Oct 72% Nov 77% Dec 94% Rain Jan 43mm Feb 37mm Mar 18mm Apr 39mm May 18mm Jun 32mm Jul 30mm Aug 32mm Sep 39mm Oct 32mm Nov 19mm Dec 43mm Clouds Jan 65% Feb 73% Mar 39% Apr 58% May 35% Jun 28% Jul 18% Aug 15% Sep 51% Oct 47% Nov 44% Dec 86% Air quality US AQI Jan 25 Feb 24 Mar 23 Apr 21 May 23 Jun 17 Jul 21 Aug 47 Sep 21 Oct 34 Nov 51 Dec 33 Sun Jan 1UVI Feb 1UVI Mar 3UVI Apr 4UVI May 6UVI Jun 7UVI Jul 7UVI Aug 7UVI Sep 5UVI Oct 3UVI Nov 1UVI Dec 1UVI