Point Forecast: 2 Miles NW Donner Summit CA  39.34N 120.44W (Elev. 7388 ft)	Last Update: 2:00 am PDT Sep 11, 2026

[hide menu]

Weather Elements Weather/Precipitation Fire Weather Temperature (°F) Dewpoint (°F) Heat Index (°F) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Fog Mixing Height  x100ftx100m Trans. Wind  ktmphkm/hm/s

48-Hour Period Starting: 3am Fri, Sep 11 20264am Fri, Sep 11 20265am Fri, Sep 11 20266am Fri, Sep 11 20267am Fri, Sep 11 20268am Fri, Sep 11 20269am Fri, Sep 11 202610am Fri, Sep 11 202611am Fri, Sep 11 202612pm Fri, Sep 11 20261pm Fri, Sep 11 20262pm Fri, Sep 11 20263pm Fri, Sep 11 20264pm Fri, Sep 11 20265pm Fri, Sep 11 20266pm Fri, Sep 11 20267pm Fri, Sep 11 20268pm Fri, Sep 11 20269pm Fri, Sep 11 202610pm Fri, Sep 11 202611pm Fri, Sep 11 202612am Sat, Sep 12 20261am Sat, Sep 12 20262am Sat, Sep 12 20263am Sat, Sep 12 20264am Sat, Sep 12 20265am Sat, Sep 12 20266am Sat, Sep 12 20267am Sat, Sep 12 20268am Sat, Sep 12 20269am Sat, Sep 12 202610am Sat, Sep 12 202611am Sat, Sep 12 202612pm Sat, Sep 12 20261pm Sat, Sep 12 20262pm Sat, Sep 12 20263pm Sat, Sep 12 20264pm Sat, Sep 12 20265pm Sat, Sep 12 20266pm Sat, Sep 12 20267pm Sat, Sep 12 20268pm Sat, Sep 12 20269pm Sat, Sep 12 202610pm Sat, Sep 12 202611pm Sat, Sep 12 202612am Sun, Sep 13 20261am Sun, Sep 13 20262am Sun, Sep 13 20263am Sun, Sep 13 20264am Sun, Sep 13 20265am Sun, Sep 13 20266am Sun, Sep 13 20267am Sun, Sep 13 20268am Sun, Sep 13 20269am Sun, Sep 13 202610am Sun, Sep 13 202611am Sun, Sep 13 202612pm Sun, Sep 13 20261pm Sun, Sep 13 20262pm Sun, Sep 13 20263pm Sun, Sep 13 20264pm Sun, Sep 13 20265pm Sun, Sep 13 20266pm Sun, Sep 13 20267pm Sun, Sep 13 20268pm Sun, Sep 13 20269pm Sun, Sep 13 202610pm Sun, Sep 13 202611pm Sun, Sep 13 202612am Mon, Sep 14 20261am Mon, Sep 14 20262am Mon, Sep 14 20263am Mon, Sep 14 20264am Mon, Sep 14 20265am Mon, Sep 14 20266am Mon, Sep 14 20267am Mon, Sep 14 20268am Mon, Sep 14 20269am Mon, Sep 14 202610am Mon, Sep 14 202611am Mon, Sep 14 202612pm Mon, Sep 14 20261pm Mon, Sep 14 20262pm Mon, Sep 14 20263pm Mon, Sep 14 20264pm Mon, Sep 14 20265pm Mon, Sep 14 20266pm Mon, Sep 14 20267pm Mon, Sep 14 20268pm Mon, Sep 14 20269pm Mon, Sep 14 202610pm Mon, Sep 14 202611pm Mon, Sep 14 202612am Tue, Sep 15 20261am Tue, Sep 15 20262am Tue, Sep 15 20263am Tue, Sep 15 20264am Tue, Sep 15 20265am Tue, Sep 15 20266am Tue, Sep 15 20267am Tue, Sep 15 20268am Tue, Sep 15 20269am Tue, Sep 15 202610am Tue, Sep 15 202611am Tue, Sep 15 202612pm Tue, Sep 15 20261pm Tue, Sep 15 20262pm Tue, Sep 15 2026

Date	09/11																					09/12
Hour (PDT)	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02
Temperature (°F)	48	48	48	48	48	52	59	61	61	62	63	63	64	62	62	61	57	54	52	50	49	49	48	47
Dewpoint (°F)	39	40	39	37	36	35	35	35	35	34	33	31	31	29	30	31	31	31	31	31	29	29	27	27
Heat Index (°F)
Surface Wind (mph)	6	6	6	6	6	6	7	7	8	9	10	10	10	10	9	8	6	6	6	7	7	7	7	7
Wind Dir	SW	SW	SW	SSW	SSW	SSW	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SSW	SSW	SSW	S	SSW	SSW
Gust								18	22	25	26	28	28	28	26	22
Sky Cover (%)	2	2	2	2	3	3	1	2	0	0	0	2	1	2	2	1	2	3	4	30	34	47	36	35
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	72	73	71	66	63	53	40	38	38	35	32	30	29	28	30	32	37	42	45	47	46	45	44	45
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date																						09/13
Hour (PDT)	03	04	05	06	07	08	09	10	11	12	13	14	15	16	17	18	19	20	21	22	23	00	01	02
Temperature (°F)	47	46	46	46	45	50	54	57	57	58	57	57	58	56	54	53	51	48	46	44	42	40	39	38
Dewpoint (°F)	28	28	28	27	25	28	26	29	31	33	31	32	34	34	35	37	37	37	37	37	37	36	36	36
Heat Index (°F)
Surface Wind (mph)	7	7	8	8	8	9	9	9	13	13	13	16	16	16	17	17	17	20	20	20	17	17	17	9
Wind Dir	S	SSW	SSW	SSW	SSW	SSW	SSW	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW
Gust						30	30	30	40	40	40	40	40	40	45	45	45	47	47	47	38	38	38	18
Sky Cover (%)	43	35	12	12	12	3	3	3	9	9	9	8	8	8	3	3	3	8	8	8	10	10	10	4
Precipitation Potential (%)	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Relative Humidity (%)	47	49	49	47	46	43	33	34	37	38	37	39	41	43	49	54	59	65	71	77	82	86	90	92
Rain	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

International System of Units Forecast Discussion 7-Day Forecast Hourly Weather Graph Watches and Warnings