Weather in Chepstow

14-day forecast · updated today, Wednesday, October 28, at 9:57 pm (GMT)

Now · overcast 55 °F

Feels like: 54 °F
Low / high: 50 / 58 °F
Rain: 45% · 0.01 in
Wind: 4 mph SSW

↗ 30.34 inHg · rising

Today in Chepstow: overcast, 50 °F to 58 °F, with a 45% chance of rain (0.01 in) and a light breeze from the south-southwest (4 mph). Tomorrow, overcast, 50 °F to 59 °F and a 0% chance of rain. The warmest day of the week is Thursday 29, at 59 °F. No significant rain expected over the next 7 days.

Temperatures for the next 14 days

58° 50°
Today
59° 50°
Thu 29
58° 50°
Fri 30
54° 48°
Sat 31
55° 46°
Sun 1
52° 45°
Mon 2
53° 44°
Tue 3
54° 49°
Wed 4
53° 43°
Thu 5
51° 41°
Fri 6
49° 39°
Sat 7
53° 45°
Sun 8
58° 53°
Mon 9
56° 52°
Tue 10

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 28	Overcast	50 / 58 °F	45% · 0.01 in	13 mph SW	1.2 ft	8:26 am · 8:48 pm	ICON-EU
Thu 29	Overcast	50 / 59 °F	0%	7 mph SSE	0.3 ft	9:05 am · 9:28 pm	ICON-EU
Fri 30	Overcast	50 / 58 °F	0%	6 mph ENE	0.1 ft	9:45 am · 10:11 pm	ICON-EU
Sat 31	Overcast	48 / 54 °F	0%	6 mph NE	0.1 ft	10:29 am · 10:58 pm	ICON-EU
Sun 1	Overcast	46 / 55 °F	2%	10 mph NNE	0.1 ft	11:21 am · 11:55 pm	ICON-EU
Mon 2	Overcast	45 / 52 °F	4%	12 mph NNE	0.9 ft	12:25 pm	ICON-EU + ECMWF
Tue 3	Overcast	44 / 53 °F	2%	11 mph NNE	0.7 ft	1:07 am · 1:43 pm	ECMWF
Wed 4	Overcast	49 / 54 °F	2%	10 mph NE	0.9 ft	2:31 am · 3:06 pm	ECMWF
Thu 5	Overcast	43 / 53 °F	2%	11 mph ENE	0.7 ft	3:49 am · 4:14 pm	ECMWF
Fri 6	Clear sky	41 / 51 °F	4%	9 mph ENE	0.1 ft	4:49 am · 5:08 pm	ECMWF
Sat 7	Overcast	39 / 49 °F	11%	8 mph ENE	1.2 ft	5:37 am · 5:54 pm	ECMWF
Sun 8	Drizzle	45 / 53 °F	14% · 0.28 in	6 mph ENE	0.7 ft	6:19 am · 6:36 pm	ECMWF
Mon 9	Drizzle	53 / 58 °F	20% · 0.25 in	8 mph SSE	0.5 ft	6:58 am · 7:14 pm	ECMWF
Tue 10	Drizzle	52 / 56 °F	18% · 0.20 in	6 mph S	0.3 ft	7:34 am · 7:50 pm	ECMWF

Each hour comes from the best model for this spot: ICON-EU until Monday 2 7:00 pm; then ECMWF until Thursday 12 3:00 pm; 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	Partly cloudy	Overcast	Overcast	Overcast	Overcast	Partly cloudy	Overcast	Overcast
Temperature	50°	51°	51°	53°	57°	58°	55°	55°
Chance of rain	0%	0%	0%	2%	45%	24%	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)	4 SW	8 SW	10 SW	13 SW	12 SW	12 WSW	8 SW	4 SW
Humidity	86%	91%	89%	90%	85%	86%	93%	93%
UV	0	0	0	0	1	0	0	0
Model	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU	ICON-EU

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	58°	59°	57°	54°	53°	52°	53°
AIFS	58°	58°	57°	51°	51°	52°	53°
GFS	59°	59°	59°	59°	57°	54°	53°
ICON	58°	59°	58°	54°	51°	52°	53°
ARPEGE	58°	58°	54°	56°	—	—	—
ICON-EU	58°	59°	58°	54°	55°	—	—
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	0.01 in	0	0	0	0	0	0
AIFS	0	0	0	0	0	0	0
GFS	0.01 in	0	0	0	0	0	0
ICON	0.00 in	0	0	0	0	0	0
ARPEGE	0	0	0	0	—	—	—
ICON-EU	0.01 in	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	1222	816	817	511	1121	1119	1122
AIFS	13	7	6	4	10	13	15
GFS	1730	813	812	55	1323	1119	1021
ICON	1423	712	611	711	814	1322	1525
ARPEGE	1325	916	611	713	—	—	—
ICON-EU	1326	712	611	611	1017	—	—
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)	45%	0%	0%	0%	2%	4%	2%
GFS (GEFS, 31 scenarios)	16%	0%	0%	0%	3%	0%	3%

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.

The next few weeks look normal for the time of year.

Next 6 weeks

When	TemperatureTemp.	Rain	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	A bit below −1.3 °F	Below −82%	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal +0.5 °F	Normal	50° / 44°
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +2.0 °F	A bit above +44%	50° / 44°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +1.3 °F	A bit above +25%	48° / 43°
Nov 30 – Dec 6Nov 30–Dec 6	Normal +0.7 °F	Normal	47° / 42°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +0.9 °F	A bit above +20%
December	A bit above +2.0 °F	A bit above +24%
January	A bit above +1.4 °F	Normal
February	A bit above +1.3 °F	Normal
March	A bit above +1.3 °F	Normal

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).

Chepstow climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Chepstow is from July to August: highs of 70 °F, about 9 rainy days a month and 6 hours of sunshine a day.

46° 37°

JanJ
47° 37°

FebF
51° 38°

MarM
56° 41°

AprA
62° 46°

MayM
66° 51°

JunJ
70° 55°

JulJ
69° 55°

AugA
65° 51°

SepS
58° 47°

OctO
52° 41°

NovN
47° 38°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves
JanuaryJan	46°	37°	3.11 in	11	1.3	45°	0.8 ft
FebruaryFeb	47°	37°	2.41 in	9	2.3	44°	1.0 ft
MarchMar	51°	38°	2.41 in	8	4.0	45°	0.8 ft
AprilApr	56°	41°	2.32 in	9	5.4	49°	0.7 ft
MayMay	62°	46°	2.43 in	8	6.6	54°	0.8 ft
JuneJun	66°	51°	2.44 in	9	6.6	59°	0.8 ft
JulyJul	70°	55°	2.27 in	9	6.2	64°	0.7 ft
AugustAug	69°	55°	3.07 in	10	5.3	65°	0.7 ft
SeptemberSep	65°	51°	2.74 in	8	4.5	63°	0.7 ft
OctoberOct	58°	47°	3.62 in	10	2.7	58°	0.8 ft
NovemberNov	52°	41°	3.80 in	12	1.6	53°	0.8 ft
DecemberDec	47°	38°	3.67 in	11	1.0	48°	0.9 ft

Month	Water	Waves
Jan	45°	0.8 ft
Feb	44°	1.0 ft
Mar	45°	0.8 ft
Apr	49°	0.7 ft
May	54°	0.8 ft
Jun	59°	0.8 ft
Jul	64°	0.7 ft
Aug	65°	0.7 ft
Sep	63°	0.7 ft
Oct	58°	0.8 ft
Nov	53°	0.8 ft
Dec	48°	0.9 ft

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

A normal year brings 34.30 in of rain on about 113 days and about 1,450 hours of sunshine.

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

Now55 °Ffeels like 54 °F

Tomorrow50 / 59 °F

It's 55 °F now (feels like 54 °F). Today, 50 °F to 58 °F; tomorrow, 50 °F to 59 °F.

Chance of rain

Today 45% 0.01 in
Thu 29 0%
Fri 30 0%
Sat 31 0%
Sun 1 2%
Mon 2 4%
Tue 3 2%

Today the chance of rain reaches 45%, with 0.01 in in total. No significant rain expected this week.

Recent rain: last 24 hours, 0.01 in; last 3 days, 0.58 in; last 7 days, 2.27 in.

Humidity and dew point

Humidity93%

Dew point53 °F

Humidity is 93% now and the dew point is 53 °F. The temperature is very close to the dew point: fog may form.

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

Visibility and fog

Now10.0 migood

Clouds100%

Visibility is good now (10.0 mi). No fog expected today.

UV index

Now0

Today's peak1low

Thu 29: 1 · Fri 30: 2 · Sat 31: 1

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

30.2030.40 30.42

Rising now (+0.03 inHg in 3 hours). Over the next 48 hours: +0.09 inHg. Rising pressure: anglers say fish bite less for a while. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityFair · 28

PollenNoneToday, at most none.

Pollen: Copernicus CAMS model (a rough guide, not a pollen trap). Levels use each type's usual thresholds.

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	Rain	Max wind
Tue 27	Light rain	45 / 60 °F	0.25 in	23 mph SW
Mon 26	Heavy drizzle	45 / 60 °F	0.29 in	23 mph SSW
Sun 25	Light drizzle	46 / 54 °F	0.02 in	20 mph W
Sat 24	Rain	46 / 61 °F	0.74 in	21 mph SW
Fri 23	Rain	46 / 53 °F	0.46 in	22 mph WNW
Thu 22	Rain	46 / 56 °F	0.41 in	15 mph SSW
Wed 21	Light rain	46 / 53 °F	0.19 in	16 mph WSW

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Tue 20	Light rain	44 / 51 °F	0.52 in	8 mph NNW
Mon 19	Heavy drizzle	45 / 57 °F	0.20 in	13 mph ENE
Sun 18	Light drizzle	41 / 56 °F	0.01 in	14 mph N
Sat 17	Overcast	42 / 56 °F	0	12 mph N
Fri 16	Heavy drizzle	46 / 59 °F	0.19 in	12 mph NW
Thu 15	Heavy drizzle	57 / 67 °F	0.04 in	17 mph SSW
Wed 14	Light drizzle	49 / 64 °F	0.01 in	15 mph SSW
Tue 13	Light drizzle	51 / 65 °F	0.06 in	17 mph SW
Mon 12	Drizzle	54 / 67 °F	0.17 in	13 mph S
Sun 11	Overcast	44 / 59 °F	0	8 mph S
Sat 10	Partly cloudy	48 / 58 °F	0	15 mph W
Fri 9	Light drizzle	51 / 65 °F	0.05 in	18 mph WSW
Thu 8	Light drizzle	44 / 59 °F	0.07 in	15 mph WNW
Wed 7	Light drizzle	48 / 59 °F	0.10 in	15 mph N
Tue 6	Light drizzle	57 / 68 °F	0.02 in	4 mph SSW
Mon 5	Overcast	55 / 68 °F	0	10 mph SW
Sun 4	Overcast	43 / 68 °F	0	7 mph WSW
Sat 3	Overcast	52 / 66 °F	0	9 mph SSW
Fri 2	Light drizzle	54 / 66 °F	0.04 in	15 mph S
Thu 1	Drizzle	53 / 64 °F	0.10 in	11 mph SW
Wed 30	Light rain	56 / 69 °F	0.56 in	16 mph S
Tue 29	Drizzle	51 / 74 °F	0.17 in	15 mph ESE
Mon 28	Overcast	45 / 66 °F	0	6 mph E

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 ChepstowQuestions

What's the weather like today in Chepstow?

Overcast, from 50 °F to 58 °F, with a light breeze from the south-southwest (4 mph) and a 45% chance of rain.

Will it rain tomorrow in Chepstow?

On Thursday 29 the chance of rain is 0% (0.00 in): overcast.

How warm will it be this week?

Between a low of 44 °F and a high of 59 °F; the warmest day, Thursday 29.

What's the UV index today?

It reaches 1 (low). No special protection needed.

Is the pressure rising or falling?

It's 30.34 inHg and rising: +0.21 inHg over the last 24 hours.

When is the best time to visit Chepstow?

The best time to visit Chepstow is from July to August: highs of 70 °F, about 9 rainy days a month and 6 hours of sunshine a day.

What is the weather like in Chepstow in October?

In October, Chepstow normally sees highs of 58 °F and lows of 47 °F, with about 10 rainy days (3.62 in for the month) and 3 hours of sunshine a day. The sea is around 58 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Chepstow?

The warmest is July, with average highs of 70 °F, and the coldest February, with lows of 37 °F. The wettest is November (3.80 in) and the driest, July.

More about Chepstow today

Weather near Chepstow

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 8.2 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 9:57 pm (local time).

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