Weather in Mount Vernon

14-day forecast · updated today, Wednesday, October 28, at 11:39 pm (EDT)

Now · mainly clear 53 °F

Feels like: 50 °F
Low / high: 46 / 70 °F
Rain: 0%
Wind: 4 mph ENE

↘ 30.31 inHg · falling

Today in Mount Vernon: overcast, 46 °F to 70 °F, with a 0% chance of rain and a light breeze from the east-northeast (4 mph). Tomorrow, mainly clear, 50 °F to 70 °F and a 1% chance of rain. The warmest day of the week is Friday 30, at 73 °F. Next likely rain: Wednesday 4 (21%).

Temperatures for the next 14 days

70° 46°
Today
70° 50°
Thu 29
73° 54°
Fri 30
62° 44°
Sat 31
65° 45°
Sun 1
67° 50°
Mon 2
70° 53°
Tue 3
70° 56°
Wed 4
69° 58°
Thu 5
66° 55°
Fri 6
62° 50°
Sat 7
60° 44°
Sun 8
58° 40°
Mon 9
62° 38°
Tue 10

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 28	Overcast	46 / 70 °F	0%	8 mph ENE	0.1 ft	3:52 am · 4:21 pm	HRRR
Thu 29	Mainly clear	50 / 70 °F	1%	7 mph SW	0.1 ft	4:41 am · 5:13 pm	HRRR + NBM
Fri 30	Partly cloudy	54 / 73 °F	2%	10 mph WNW	0.7 ft	5:35 am · 6:10 pm	NBM
Sat 31	Overcast	44 / 62 °F	0%	7 mph NNE	0.4 ft	6:33 am · 7:09 pm	NBM
Sun 1	Overcast	45 / 65 °F	0%	4 mph SE	0.4 ft	6:35 am · 7:11 pm	NBM
Mon 2	Partly cloudy	50 / 67 °F	5%	5 mph SSE	0.5 ft	7:43 am · 8:20 pm	NBM
Tue 3	Overcast	53 / 70 °F	8%	9 mph E	0.5 ft	9:00 am · 9:32 pm	NBM
Wed 4	Clear sky	56 / 70 °F	21% · 0.09 in	11 mph E	0.1 ft	10:09 am · 10:32 pm	NBM
Thu 5	Mainly clear	58 / 69 °F	27% · 0.09 in	12 mph ESE	0.1 ft	11:05 am · 11:23 pm	NBM
Fri 6	Rain	55 / 66 °F	26% · 0.34 in	11 mph W	0.9 ft	11:52 am	NBM
Sat 7	Rain	50 / 62 °F	26% · 0.09 in	11 mph NW	1.5 ft	12:09 am · 12:35 pm	NBM
Sun 8	Overcast	44 / 60 °F	12% · 0.10 in	9 mph NNW	1.3 ft	12:51 am · 1:15 pm	NBM + ECMWF
Mon 9	Clear sky	40 / 58 °F	15%	8 mph NNE	1.0 ft	1:31 am · 1:51 pm	ECMWF
Tue 10	Overcast	38 / 62 °F	17%	6 mph NE	0.5 ft	2:09 am · 2:27 pm	ECMWF

Each hour comes from the best model for this spot: HRRR until Thursday 29 6:00 pm; then NBM until Sunday 8 8:00 pm; then ECMWF until Thursday 12 10:00 am; then GFS.

Each day comes from the best model covering this spot: regional ones first (HRRR and NBM in the U.S., AROME, ICON-EU), then ECMWF; day 16, NOAA GFS. Waves: Météo-France up to day 10, then ECMWF WAM, coarser and further offshore. High tides: our own tide calculation.

Today, every 3 hours

Time	12:00 am	3:00 am	6:00 am	9:00 am	12:00 pm	3:00 pm	6:00 pm	9:00 pm
Sky	Clear	Clear	Clear	Clear sky	Mainly clear	Overcast	Overcast	Partly cloudy
Temperature	50°	48°	48°	53°	67°	70°	63°	56°
Chance of rain	0%	0%	0%	0%	0%	0%	0%	0%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in	0.00 in
Wind (mph)	5 NE	3 NE	3 NE	4 N	8 E	4 E	5 SE	3 NNE
Humidity	87%	86%	90%	89%	65%	55%	65%	81%
UV	0	0	0	1	4	2	0	0
Model	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR	HRRR

Do the models agree?

High confidence

The models agree for the next few days: the forecast is fairly solid.

What 6 forecast models say for the next few days. The closer they are, the more reliable the forecast.

HighRainWind

Do the models agree? · High
High (°F)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	70°	70°	73°	61°	65°	69°	71°
AIFS	71°	70°	74°	61°	63°	66°	69°
GFS	71°	69°	75°	62°	66°	64°	73°
ICON	68°	68°	73°	62°	66°	69°	69°
HRRR	70°	70°	73°	—	—	—	—
NBM	68°	69°	73°	62°	65°	67°	70°
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
Rain	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	0	0	0	0	0	0	0
AIFS	0	0	0	0	0	0	0
GFS	0	0	0	0	0	0	0
ICON	0	0	0	0	0	0	0
HRRR	0	0	0	—	—	—	—
NBM	0	0	0	0	0	0	0
Confidence	high	high	high	high	high	high	high

Do the models agree? · Wind
Wind (mph)	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF	715	613	1022	920	521	717	1019
AIFS	7	6	12	9	4	5	6
GFS	716	712	1227	825	515	512	515
ICON	513	410	921	616	715	616	716
HRRR	813	714	1321	—	—	—	—
NBM	711	57	1016	713	47	59	914
Confidence	high	high	high	high	high	high	high

Chance of rain from the ensemble models

Model	Today	Thu 29	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3
ECMWF (51 scenarios)	0%	0%	0%	0%	0%	7%	8%
GFS (GEFS, 31 scenarios)	0%	0%	0%	0%	0%	13%	16%
NBM (NOAA)	0%	1%	2%	0%	0%	5%	8%
Thunderstorm (NBM)	0%	0%	0%	0%	1%	1%	1%

Each model's day runs midnight to midnight local time; models that reach fewer days are left blank. Rain: daily total. Wind: the day's highest average wind and, in small type, the strongest gust. Highlighted: values that stand out from the rest. The chance of rain comes from many runs of the same model with slightly different starting data.

Outlook

How the coming weeks and months compare with what is normal for the time of year. It is a trend, not a day-by-day forecast.

Next few weeks, compared with normal: warmer and a bit wetter.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Well above +6.5 °F	Above +76%	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal +0.5 °F	A bit above +22%	59° / 47°
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +2.0 °F	Normal	58° / 47°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.3 °F	A bit above +33%	55° / 46°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +1.8 °F	A bit above +49%	53° / 44°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +1.3 °F	A bit above +40%
December	A bit above +1.8 °F	A bit above +28%
January	A bit above +2.5 °F	A bit above +50%
February	A bit above +1.4 °F	Above +52%
March	A bit above +1.6 °F	A bit above +33%

Weeks: ECMWF 46-day (average of its scenarios), against the normal of the last 20 years for those dates. Months: ECMWF SEAS5. Rain: total against normal. The further ahead, the closer it gets to normal and the less detail it can give. The long-range sea temperature isn't usable at this spot (the model's grid cell falls on land).

Mount Vernon climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Mount Vernon is from May to June and from August to October: highs of 70 °F to 86 °F, about 9 rainy days a month and 6 hours of sunshine a day.

Hurricane season: from July to August. In the last 30 years (1996–2025), 8 tropical cyclones passed within 93 mi of Mount Vernon, about 3 every 10 years; 2 of them with hurricane-force winds (74 mph or more). The most recent: Elsa, in July 2021.

46° 28°

JanJ
48° 29°

FebF
56° 36°

MarM
67° 45°

AprA
75° 54°

MayM
84° 63°

JunJ
88° 68°

JulJ
86° 66°

AugA
80° 60°

SepS
70° 49°

OctO
59° 39°

NovN
50° 33°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	46°	28°	3.49 in	7	4.2	40°	1.3 ft	–
FebruaryFeb	48°	29°	2.82 in	7	5.1	39°	1.2 ft	–
MarchMar	56°	36°	4.20 in	9	5.8	43°	1.3 ft	–
AprilApr	67°	45°	3.39 in	8	6.4	52°	1.3 ft	–
MayMay	75°	54°	3.35 in	10	7.3	62°	1.1 ft	–
JuneJun	84°	63°	3.86 in	11	7.5	72°	1.0 ft	–
JulyJul	88°	68°	4.43 in	11	7.7	79°	0.9 ft	3
AugustAug	86°	66°	4.64 in	10	7.1	80°	0.9 ft	3
SeptemberSep	80°	60°	3.79 in	9	5.9	76°	1.0 ft	2
OctoberOct	70°	49°	4.01 in	7	5.3	67°	1.3 ft	–
NovemberNov	59°	39°	3.11 in	7	4.6	56°	1.3 ft	–
DecemberDec	50°	33°	3.40 in	8	3.8	47°	1.2 ft	–

Month	Water	Waves	Cyclones
Jan	40°	1.3 ft	–
Feb	39°	1.2 ft	–
Mar	43°	1.3 ft	–
Apr	52°	1.3 ft	–
May	62°	1.1 ft	–
Jun	72°	1.0 ft	–
Jul	79°	0.9 ft	3
Aug	80°	0.9 ft	3
Sep	76°	1.0 ft	2
Oct	67°	1.3 ft	–
Nov	56°	1.3 ft	–
Dec	47°	1.2 ft	–

Days: rainy days in the month. Sun: hours a day.

A normal year brings 44.49 in of rain on about 103 days and about 2,150 hours of sunshine.

Cyclones: how many tropical cyclones (tropical storms, hurricanes and typhoons) passed within 93 mi in each month from 1996 to 2025, according to IBTrACS (NOAA).

1991–2020 averages. Highs, lows and rainfall: TerraClimate; rainy days (0.04 in or more): NASA POWER (MERRA-2); sunshine hours: estimated from solar radiation; water: NOAA OISST; waves (average height): ERA5, 2011–2020. Normals are not a forecast: any given year can turn out very different. Sources and licenses

Temperature

Now53 °Ffeels like 50 °F

Tomorrow50 / 70 °F

It's 53 °F now (feels like 50 °F). Today, 46 °F to 70 °F; tomorrow, 50 °F to 70 °F.

Chance of rain

Today 0%
Thu 29 1%
Fri 30 2%
Sat 31 0%
Sun 1 0%
Mon 2 5%
Tue 3 8%

Today the chance of rain reaches 0%. The next day with likely rain is Wednesday 4: 21% and 0.09 in.

No rain in the last 7 days.

Humidity and dew point

Humidity85%

Dew point48 °F

Humidity is 85% now and the dew point is 48 °F.

The dew point is the temperature at which the air becomes saturated: the higher it is, the heavier the air feels.

Visibility and fog

Now9.2 migood

Clouds27%

Visibility is good now (9.2 mi). No fog expected today.

UV index

Now0

Today's peak4moderate

Thu 29: 4 · Fri 30: 4 · Sat 31: 4

Index	Level	What to do
0–2	low	No special protection needed.
3–5	moderate	Hat, sunglasses and sunscreen around midday.
6–7	high	Sunscreen, hat and shade between 12 and 4 pm.
8–10	very high	Avoid the midday sun; reflection off the water adds to it.
11+	extreme	Avoid the sun between 11 am and 5 pm; protect yourself even if it is cloudy.

Reflection off water and sand adds radiation: protect yourself more on a boat or at the beach.

Barometric pressure

↗ Rising Anglers say fish bite less for a while
→ Steady Anglers expect normal activity
↘ Falling · now Anglers say fish feed more before the change

30.2030.40 30.11

Falling now (−0.05 inHg in 3 hours). It barely changes over the next 48 hours. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityGood · 38

Saharan dustNo

Previous days

The weather over the last 30 days, as the models analyzed it. Tap a day to see it hour by hour.

Day	Sky	Low / high	Max wind
Tue 27	Partly cloudy	48 / 71 °F	9 mph NE
Mon 26	Clear sky	42 / 66 °F	8 mph W
Sun 25	Clear sky	44 / 67 °F	6 mph NE
Sat 24	Overcast	43 / 65 °F	7 mph NE
Fri 23	Overcast	48 / 65 °F	10 mph NNE
Thu 22	Overcast	45 / 66 °F	9 mph NNW
Wed 21	Overcast	48 / 65 °F	11 mph N

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Tue 20	Clear sky	47 / 69 °F	0	11 mph N
Mon 19	Clear sky	43 / 65 °F	0	11 mph NNE
Sun 18	Clear sky	42 / 60 °F	0	12 mph NNE
Sat 17	Heavy drizzle	48 / 64 °F	0.54 in	15 mph N
Fri 16	Rain	62 / 79 °F	0.60 in	11 mph SSW
Thu 15	Light drizzle	62 / 73 °F	0.01 in	10 mph NE
Wed 14	Overcast	67 / 86 °F	0	9 mph SW
Tue 13	Mainly clear	58 / 78 °F	0	9 mph SW
Mon 12	Light drizzle	58 / 71 °F	0.05 in	15 mph NW
Sun 11	Heavy drizzle	65 / 74 °F	0.56 in	15 mph ESE
Sat 10	Overcast	54 / 72 °F	0	10 mph E
Fri 9	Overcast	54 / 75 °F	0	5 mph N
Thu 8	Overcast	58 / 78 °F	0	9 mph WSW
Wed 7	Clear sky	44 / 69 °F	0	8 mph S
Tue 6	Clear sky	50 / 65 °F	0	8 mph N
Mon 5	Overcast	58 / 73 °F	0	10 mph NW
Sun 4	Light rain	63 / 68 °F	0.37 in	9 mph NE
Sat 3	Light rain	62 / 71 °F	0.50 in	11 mph NNE
Fri 2	Light drizzle	69 / 83 °F	0.02 in	10 mph SW
Thu 1	Overcast	63 / 82 °F	0	9 mph SSW
Wed 30	Overcast	60 / 77 °F	0	6 mph SW
Tue 29	Overcast	63 / 74 °F	0	7 mph W
Mon 28	Light drizzle	61 / 69 °F	0.01 in	9 mph WNW

These are the models at the start of each day (ECMWF and GFS; waves from Météo-France), not readings from a weather station: there can be differences at specific spots.

Questions about the weather in Mount VernonQuestions

What's the weather like today in Mount Vernon?

Overcast, from 46 °F to 70 °F, with a light breeze from the east-northeast (4 mph) and a 0% chance of rain.

Will it rain tomorrow in Mount Vernon?

On Thursday 29 the chance of rain is 1% (0.00 in): mainly clear.

How warm will it be this week?

Between a low of 44 °F and a high of 73 °F; the warmest day, Friday 30.

What's the UV index today?

It reaches 4 (moderate). Hat, sunglasses and sunscreen around midday.

Is the pressure rising or falling?

It's 30.31 inHg and falling: −0.06 inHg over the last 24 hours.

When is the best time to visit Mount Vernon?

The best time to visit Mount Vernon is from May to June and from August to October: highs of 70 °F to 86 °F, about 9 rainy days a month and 6 hours of sunshine a day.

What is the weather like in Mount Vernon in October?

In October, Mount Vernon normally sees highs of 70 °F and lows of 49 °F, with about 7 rainy days (4.01 in for the month) and 5 hours of sunshine a day. The sea is around 67 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Mount Vernon?

The warmest is July, with average highs of 88 °F, and the coldest January, with lows of 28 °F. The wettest is August (4.64 in) and the driest, February.

When is hurricane season in Mount Vernon?

Hurricane season: from July to August. In the last 30 years (1996–2025), 8 tropical cyclones passed within 93 mi of Mount Vernon, about 3 every 10 years; 2 of them with hurricane-force winds (74 mph or more). The most recent: Elsa, in July 2021.

More about Mount Vernon today

Weather near Mount Vernon

Only places with a different forecast: spots a few miles apart share the same model cell and wouldn't add anything.

Learn more

Weather: Open-Meteo, CC BY 4.0, with the best model for each spot and lead time (NOAA HRRR and NBM in the U.S., Météo-France AROME, DWD ICON-EU, ECMWF IFS and NOAA GFS); ECMWF grid point 3.9 mi away. The comparison also uses ICON (DWD), AIFS (ECMWF) and ARPEGE (Météo-France). Outlook: ECMWF 46-day and SEAS5. Chance of rain from ensemble models (ECMWF, GEFS and NBM). UV, air quality and pollen: CAMS (Copernicus).

Forecast from Open-Meteo (CC BY 4.0) with models from ECMWF, NOAA, Météo-France, DWD, Copernicus Marine and CAMS. Updated at 11:39 pm (local time).

Spotted a mistake? Tell us · Where the weather and sea data come from