Point Forecast: Washington DC  38.89N 77.02W (Elev. 6 m)	Last Update: 2:05 pm EDT Sep 4, 2026

[hide menu]

Weather Elements Fire Weather Aviation Weather Temperature (°C) Dewpoint (°C) Heat Index (°C) Surface Wind  ktmphkm/hm/s Sky Cover (%) Precipitation Potential (%) Relative Humidity (%) Rain Thunder Fog Mixing Height  x100ftx100m Trans. Wind  ktmphkm/hm/s Vent Rate (x1000 mph-m) Atmospheric Dispersion Index Low Visibility Occurrence Risk Index Ceiling Height Visibility

48-Hour Period Starting: 2pm Fri, Sep 4 20263pm Fri, Sep 4 20264pm Fri, Sep 4 20265pm Fri, Sep 4 20266pm Fri, Sep 4 20267pm Fri, Sep 4 20268pm Fri, Sep 4 20269pm Fri, Sep 4 202610pm Fri, Sep 4 202611pm Fri, Sep 4 202612am Sat, Sep 5 20261am Sat, Sep 5 20262am Sat, Sep 5 20263am Sat, Sep 5 20264am Sat, Sep 5 20265am Sat, Sep 5 20266am Sat, Sep 5 20267am Sat, Sep 5 20268am Sat, Sep 5 20269am Sat, Sep 5 202610am Sat, Sep 5 202611am Sat, Sep 5 202612pm Sat, Sep 5 20261pm Sat, Sep 5 20262pm Sat, Sep 5 20263pm Sat, Sep 5 20264pm Sat, Sep 5 20265pm Sat, Sep 5 20266pm Sat, Sep 5 20267pm Sat, Sep 5 20268pm Sat, Sep 5 20269pm Sat, Sep 5 202610pm Sat, Sep 5 202611pm Sat, Sep 5 202612am Sun, Sep 6 20261am Sun, Sep 6 20262am Sun, Sep 6 20263am Sun, Sep 6 20264am Sun, Sep 6 20265am Sun, Sep 6 20266am Sun, Sep 6 20267am Sun, Sep 6 20268am Sun, Sep 6 20269am Sun, Sep 6 202610am Sun, Sep 6 202611am Sun, Sep 6 202612pm Sun, Sep 6 20261pm Sun, Sep 6 20262pm Sun, Sep 6 20263pm Sun, Sep 6 20264pm Sun, Sep 6 20265pm Sun, Sep 6 20266pm Sun, Sep 6 20267pm Sun, Sep 6 20268pm Sun, Sep 6 20269pm Sun, Sep 6 202610pm Sun, Sep 6 202611pm Sun, Sep 6 202612am Mon, Sep 7 20261am Mon, Sep 7 20262am Mon, Sep 7 20263am Mon, Sep 7 20264am Mon, Sep 7 20265am Mon, Sep 7 20266am Mon, Sep 7 20267am Mon, Sep 7 20268am Mon, Sep 7 20269am Mon, Sep 7 202610am Mon, Sep 7 202611am Mon, Sep 7 202612pm Mon, Sep 7 20261pm Mon, Sep 7 20262pm Mon, Sep 7 20263pm Mon, Sep 7 20264pm Mon, Sep 7 20265pm Mon, Sep 7 20266pm Mon, Sep 7 20267pm Mon, Sep 7 20268pm Mon, Sep 7 20269pm Mon, Sep 7 202610pm Mon, Sep 7 202611pm Mon, Sep 7 202612am Tue, Sep 8 20261am Tue, Sep 8 20262am Tue, Sep 8 20263am Tue, Sep 8 20264am Tue, Sep 8 20265am Tue, Sep 8 20266am Tue, Sep 8 20267am Tue, Sep 8 20268am Tue, Sep 8 20269am Tue, Sep 8 202610am Tue, Sep 8 202611am Tue, Sep 8 202612pm Tue, Sep 8 20261pm Tue, Sep 8 20262pm Tue, Sep 8 20263pm Tue, Sep 8 20264pm Tue, Sep 8 20265pm Tue, Sep 8 20266pm Tue, Sep 8 20267pm Tue, Sep 8 20268pm Tue, Sep 8 20269pm Tue, Sep 8 202610pm Tue, Sep 8 202611pm Tue, Sep 8 202612am Wed, Sep 9 20261am Wed, Sep 9 2026

Date	09/04										09/05
Hour (EDT)	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13
Temperature (°C)	33	33	32	33	32	31	29	28	27	27	26	25	25	24	24	24	23	23	24	24	26	26	27	28
Dewpoint (°C)	24	23	23	23	23	22	23	22	23	23	22	22	22	22	22	22	22	22	22	22	22	22	22	22
Heat Index (°C)	39	38	37	38	36	34	32	31	30	29	26	25	25	24	24	24			24	24	26	26	29	31
Surface Wind (mph)	8	9	8	9	7	5	2	2	2	1	1	1	1	2	2	3	3	3	3	3	5	5	5	6
Wind Dir	NW	NW	NW	NW	NW	NW	W	W	SW	W	W	W	NW	NW	W	NW	NW	N	N	N	N	N	N	N
Gust
Sky Cover (%)	57	68	68	75	71	72	77	61	48	45	54	59	53	65	65	67	64	60	82	53	45	74	59	62
Precipitation Potential (%)	9	22	26	62	57	57	29	17	21	23	31	39	30	48	47	36	29	25	23	19	15	16	22	17
Relative Humidity (%)	60	58	60	56	59	61	70	72	77	79	82	85	85	87	87	87	90	93	90	90	82	79	74	72
Rain	--	SChc	Chc	Lkly	Lkly	Lkly	Chc	SChc	SChc	SChc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	Chc	SChc	SChc	SChc	SChc	SChc	SChc
Thunder	--	SChc	SChc	Chc	Chc	Chc	SChc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Date											09/06
Hour (EDT)	14	15	16	17	18	19	20	21	22	23	00	01	02	03	04	05	06	07	08	09	10	11	12	13
Temperature (°C)	28	27	28	27	27	26	25	24	23	23	22	22	22	21	21	20	19	19	21	21	23	24	26	26
Dewpoint (°C)	22	22	22	21	21	21	21	20	19	19	19	18	18	18	18	17	17	17	18	18	19	19	19	18
Heat Index (°C)	31	29	31	29	28	26	25	24														24	26	26
Surface Wind (mph)	6	6	6	6	5	5	3	2	1	1	1	2	2	2	3	5	5	5	5	5	5	6	6	7
Wind Dir	N	N	NE	NE	NE	NE	NE	NE	NE	NE	NE	N	NE	N	N	N	NE	NE	NE	NE	NE	NE	NE	NE
Gust
Sky Cover (%)	78	60	80	66	62	70	78	79	69	75	73	64	79	80	72	43	42	38	28	21	21	20	23	26
Precipitation Potential (%)	8	11	25	28	37	39	33	24	15	14	12	12	9	6	7	5	1	5	8	8	8	8	8	8
Relative Humidity (%)	72	72	67	69	72	74	76	79	79	81	81	79	81	81	84	84	87	87	84	84	79	71	67	62
Rain	--	--	Chc	Chc	Chc	Chc	Chc	SChc	SChc	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--
Thunder	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--	--

English Units Forecast Discussion 7-Day Forecast Hourly Weather Graph Hazardous Weather Briefing Page Past Weather Information Interactive Forecast Map Home