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Rosslyn VA Weather - Mostly Clear - 67°F
Mostly Clear
67°F
Updated 4:19 am
Feels Like 64°F
Humidity 78%
Wind NNW 5 mph
Barometer  30.24 in
Dew Point 60°F
Rosslyn VA Weather - Mostly Clear - 19°C
Mostly Clear
19°C
Updated 4:19 am
Feels Like 18°C
Humidity 78%
Wind NNW 8 km/h
Barometer  102.4 kPa
Dew Point 16°C
Rosslyn, VA Weather and Current Conditionsrosslyn va weather forecast

Rosslyn, VA Weather Forecast

Rosslyn Virginia WeatherRosslyn, Virginia Weather Weather Forecast
14 Day API Rosslyn, VA Weather Forecast. Note: Our 7 day Rosslyn, Virginia weather forecast is our most reliable, and specific forecast. This model should only be used as a probable scenario. Forecasting more than 7 days ahead is challenging.
Rosslyn, VA Weather Forecast Dated: 419 AM Tue Sep 08 2026
Expect a very warm period with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and a stable pattern will dominate.

Tuesday, September 8, 2026

Mid-Morning
Rosslyn Weather - 2026-09-08 - Morning - Overcast
70°F 21°C
Overcast
Mid-Afternoon
Rosslyn Weather - 2026-09-08 - Afternoon - Sunny
86°F 30°C
Sunny
Early-Evening
Rosslyn Weather - 2026-09-08 - Evening - Overcast
81°F 28°C
Overcast
Warm and summery near 86°F 30°C, overcast in the morning, sunny in the afternoon, and overcast this evening, with lower humidity and steady pressure.

Wednesday, September 9, 2026

Mid-Morning
Rosslyn Weather - 2026-09-09 - Morning - Cloudy
72°F 22°C
Cloudy
Mid-Afternoon
Rosslyn Weather - 2026-09-09 - Afternoon - Sunny
91°F 33°C
Sunny
Early-Evening
Rosslyn Weather - 2026-09-09 - Evening - Cloudy
86°F 30°C
Cloudy
Hot and sweltering around 91°F 33°C, overcast in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure falling. Winds out of the SW at 11 mph 17 km/h. Gusts up to 21 mph 33 km/h.

Thursday, September 10, 2026

Mid-Morning
Rosslyn Weather - 2026-09-10 - Morning - Scattered Showers
74°F 23°C
Scattered Showers
Mid-Afternoon
Rosslyn Weather - 2026-09-10 - Afternoon - Scattered Showers
79°F 26°C
Scattered Showers
Early-Evening
Rosslyn Weather - 2026-09-10 - Evening - Overcast
79°F 26°C
Overcast
Enjoyable around 79°F 26°C, locally heavy downpours at times, with increasing humidity and steady pressure.

Friday, September 11, 2026

Mid-Morning
Rosslyn Weather - 2026-09-11 - Morning - Overcast
73°F 23°C
Overcast
Mid-Afternoon
Rosslyn Weather - 2026-09-11 - Afternoon - Overcast
85°F 29°C
Overcast
Early-Evening
Rosslyn Weather - 2026-09-11 - Evening - Overcast
79°F 26°C
Overcast
Warm temperatures up to 85°F 29°C, overcast throughout the day, with steady humidity and steady pressure.

Saturday, September 12, 2026

Mid-Morning
Rosslyn Weather - 2026-09-12 - Morning - Light Showers
68°F 20°C
Light Showers
Mid-Afternoon
Rosslyn Weather - 2026-09-12 - Afternoon - Scattered Showers
74°F 24°C
Scattered Showers
Early-Evening
Rosslyn Weather - 2026-09-12 - Evening - Light Fog
71°F 22°C
Light Fog
Mild with a high of 74°F 24°C, scattered downpours possible, with steady humidity and steady pressure.

Sunday, September 13, 2026

Mid-Morning
Rosslyn Weather - 2026-09-13 - Morning - Cloudy
73°F 23°C
Cloudy
Mid-Afternoon
Rosslyn Weather - 2026-09-13 - Afternoon - Cloudy
85°F 30°C
Cloudy
Early-Evening
Rosslyn Weather - 2026-09-13 - Evening - Cloudy
80°F 27°C
Cloudy
Very warm near 85°F 30°C, though humidity makes it feel like 89°F 32°C, partly cloudy in the morning, becoming cloudy through the afternoon and evening, with lower humidity and steady pressure.

Monday, September 14, 2026

Mid-Morning
Rosslyn Weather - 2026-09-14 - Morning - Sunny
76°F 24°C
Sunny
Mid-Afternoon
Rosslyn Weather - 2026-09-14 - Afternoon - Overcast
92°F 34°C
Overcast
Early-Evening
Rosslyn Weather - 2026-09-14 - Evening - Overcast
86°F 30°C
Overcast
Sizzling hot near 92°F 34°C with a heat index reaching 95°F 35°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling.

Tuesday, September 15, 2026

Mid-Morning
Rosslyn Weather - 2026-09-15 - Morning - Sunny
80°F 26°C
Sunny
Mid-Afternoon
Rosslyn Weather - 2026-09-15 - Afternoon - Partly Cloudy
97°F 36°C
Partly Cloudy
Early-Evening
Rosslyn Weather - 2026-09-15 - Evening - Sunny
90°F 32°C
Sunny
Sizzling hot with 97°F 36°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds switching from the SW to the WSW at 8 mph 13 km/h.

Wednesday, September 16, 2026

Mid-Morning
Rosslyn Weather - 2026-09-16 - Morning - Overcast
73°F 23°C
Overcast
Mid-Afternoon
Rosslyn Weather - 2026-09-16 - Afternoon - Sunny
82°F 28°C
Sunny
Early-Evening
Rosslyn Weather - 2026-09-16 - Evening - Sunny
75°F 24°C
Sunny
Warm temperatures up to 82°F 28°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds moving from the NNW to the N at 12 mph 18 km/h.

Thursday, September 17, 2026

Mid-Morning
Rosslyn Weather - 2026-09-17 - Morning - Overcast
61°F 16°C
Overcast
Mid-Afternoon
Rosslyn Weather - 2026-09-17 - Afternoon - Partly Cloudy
73°F 23°C
Partly Cloudy
Early-Evening
Rosslyn Weather - 2026-09-17 - Evening - Sunny
68°F 20°C
Sunny
Mild with a high of 73°F 23°C, cloudy in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure.

Friday, September 18, 2026

Mid-Morning
Rosslyn Weather - 2026-09-18 - Morning - Sunny
64°F 18°C
Sunny
Mid-Afternoon
Rosslyn Weather - 2026-09-18 - Afternoon - Sunny
77°F 25°C
Sunny
Early-Evening
Rosslyn Weather - 2026-09-18 - Evening - Overcast
72°F 23°C
Overcast
Pleasant near 77°F 25°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling. Winds swinging from the ESE to the SSE at 8 mph 13 km/h.

Saturday, September 19, 2026

Mid-Morning
Rosslyn Weather - 2026-09-19 - Morning - Overcast
68°F 20°C
Overcast
Mid-Afternoon
Rosslyn Weather - 2026-09-19 - Afternoon - Scattered Showers
87°F 30°C
Scattered Showers
Early-Evening
Rosslyn Weather - 2026-09-19 - Evening - Light Showers
72°F 23°C
Light Showers
Balmy with temperatures reaching 87°F 30°C, locally heavy downpours at times, with steady humidity and barometric pressure falling. Winds shifting from the SSW to the NNW at 11 mph 17 km/h. Gusts up to 26 mph 42 km/h.

Sunday, September 20, 2026

Mid-Morning
Rosslyn Weather - 2026-09-20 - Morning - Overcast
53°F 12°C
Overcast
Mid-Afternoon
Rosslyn Weather - 2026-09-20 - Afternoon - Overcast
63°F 17°C
Overcast
Early-Evening
Rosslyn Weather - 2026-09-20 - Evening - Overcast
60°F 16°C
Overcast
Refreshing around 63°F 17°C, overcast throughout the day, with lower humidity and steady pressure. Winds turning from the WSW to the SE at 4 mph 6 km/h.

Monday, September 21, 2026

Mid-Morning
Rosslyn Weather - 2026-09-21 - Morning - Cloudy
59°F 15°C
Cloudy
Mid-Afternoon
Rosslyn Weather - 2026-09-21 - Afternoon - Partly Cloudy
70°F 21°C
Partly Cloudy
Early-Evening
Rosslyn Weather - 2026-09-21 - Evening - Overcast
66°F 19°C
Overcast
Mild temperatures up to 70°F 21°C, overcast in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure.

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Weather by the Numbers

Tue, 8th
Rosslyn VA Weather - Tuesday, Sep 8, 2026 - Overcast
Hi: 87°F 31°C
Lo: 61°F 16°C
Sunrise 06:43 AM
Sunset 07:28 PM
Wind SW 5 mph8 km/h
Dew Point 59°F15°C
uv Index 6
Barometric Pressure 30.27 in1025 mb
POP 10% *
Humidity 43%
Wed, 9th
Rosslyn VA Weather - Wednesday, Sep 9, 2026 - Overcast
Hi: 91°F 33°C
Lo: 67°F 20°C
Sunrise 06:44 AM
Sunset 07:26 PM
Wind SSW 8 mph13 km/h
Dew Point 55°F13°C
uv Index 7
Barometric Pressure 30.18 in1022 mb
POP 8% *
Humidity 37%
Thu, 10th
Rosslyn VA Weather - Thursday, Sep 10, 2026 - Patchy Rain Nearby
Hi: 84°F 29°C
Lo: 71°F 22°C
Sunrise 06:45 AM
Sunset 07:25 PM
Wind W 8 mph12 km/h
Dew Point 63°F17°C
uv Index 7
Barometric Pressure 29.94 in1014 mb
POP 17% *
Humidity 56%
Fri, 11th
Rosslyn VA Weather - Friday, Sep 11, 2026 - Overcast
Hi: 85°F 30°C
Lo: 70°F 21°C
Sunrise 06:46 AM
Sunset 07:23 PM
Wind NNE 3 mph5 km/h
Dew Point 56°F13°C
uv Index 6
Barometric Pressure 30 in1016 mb
POP 10% *
Humidity 42%
Sat, 12th
Rosslyn VA Weather - Saturday, Sep 12, 2026 - Light Rain Shower
Hi: 79°F 26°C
Lo: 68°F 20°C
Sunrise 06:47 AM
Sunset 07:21 PM
Wind SSE 6 mph10 km/h
Dew Point 69°F21°C
uv Index 6
Barometric Pressure 30.03 in1017 mb
POP 62% *
Humidity 76%
Sun, 13th
Rosslyn VA Weather - Sunday, Sep 13, 2026 - Patchy Rain Nearby
Hi: 87°F 30°C
Lo: 68°F 20°C
Sunrise 06:48 AM
Sunset 07:20 PM
Wind E 3 mph5 km/h
Dew Point 67°F20°C
uv Index 6
Barometric Pressure 30.12 in1020 mb
POP 10% *
Humidity 62%
Mon, 14th
Rosslyn VA Weather - Monday, Sep 14, 2026 - Overcast
Hi: 93°F 34°C
Lo: 71°F 22°C
Sunrise 06:49 AM
Sunset 07:18 PM
Wind SW 6 mph10 km/h
Dew Point 67°F20°C
uv Index 7
Barometric Pressure 30.09 in1019 mb
POP 5% *
Humidity 54%
Tue, 15th
Rosslyn VA Weather - Tuesday, Sep 15, 2026 - Sunny
Hi: 97°F 36°C
Lo: 74°F 23°C
Sunrise 06:50 AM
Sunset 07:16 PM
Wind SW 6 mph10 km/h
Dew Point 64°F18°C
uv Index 8
Barometric Pressure 29.94 in1014 mb
POP 1% *
Humidity 41%
Wed, 16th
Rosslyn VA Weather - Wednesday, Sep 16, 2026 - Partly Cloudy
Hi: 82°F 28°C
Lo: 66°F 19°C
Sunrise 06:50 AM
Sunset 07:15 PM
Wind NW 11 mph18 km/h
Dew Point 57°F14°C
uv Index 7
Barometric Pressure 30.06 in1018 mb
POP 8% *
Humidity 46%
Thu, 17th
Rosslyn VA Weather - Thursday, Sep 17, 2026 - Overcast
Hi: 73°F 23°C
Lo: 58°F 14°C
Sunrise 06:51 AM
Sunset 07:13 PM
Wind SE 6 mph10 km/h
Dew Point 37°F3°C
uv Index 5
Barometric Pressure 30.39 in1029 mb
POP 9% *
Humidity 32%
Fri, 18th
Rosslyn VA Weather - Friday, Sep 18, 2026 - Sunny
Hi: 78°F 25°C
Lo: 59°F 15°C
Sunrise 06:52 AM
Sunset 07:12 PM
Wind SSE 6 mph9 km/h
Dew Point 45°F7°C
uv Index 6
Barometric Pressure 30.36 in1028 mb
POP 1% *
Humidity 37%
Sat, 19th
Rosslyn VA Weather - Saturday, Sep 19, 2026 - Overcast
Hi: 87°F 30°C
Lo: 60°F 16°C
Sunrise 06:53 AM
Sunset 07:10 PM
Wind SW 11 mph18 km/h
Dew Point 58°F15°C
uv Index 6
Barometric Pressure 29.97 in1015 mb
POP 11% *
Humidity 48%
Sun, 20th
Rosslyn VA Weather - Sunday, Sep 20, 2026 - Overcast
Hi: 64°F 18°C
Lo: 51°F 10°C
Sunrise 06:54 AM
Sunset 07:08 PM
Wind NNE 8 mph12 km/h
Dew Point 31°F-0°C
uv Index 3
Barometric Pressure 30.27 in1025 mb
POP 10% *
Humidity 35%
Mon, 21st
Rosslyn VA Weather - Monday, Sep 21, 2026 - Partly Cloudy
Hi: 70°F 21°C
Lo: 55°F 13°C
Sunrise 06:55 AM
Sunset 07:07 PM
Wind E 5 mph8 km/h
Dew Point 44°F7°C
uv Index 5
Barometric Pressure 30.27 in1025 mb
POP 7% *
Humidity 45%
* POP = Probability of Precipitation. Data for 12:00 PM.