Weather in Chester

14-day forecast · updated today, Wednesday, October 28, at 11:34 pm (EDT)

Now · clear 53 °F

Feels like: 51 °F
Low / high: 46 / 66 °F
Rain: 0%
Wind: 4 mph NNE

↘ 30.31 inHg · falling

Today in Chester: overcast, 46 °F to 66 °F, with a 0% chance of rain and a light breeze from the north-northeast (4 mph). Tomorrow, mainly clear, 47 °F to 69 °F and a 2% chance of rain. The warmest day of the week is Friday 30, at 72 °F. Next likely rain: Wednesday 4 (23%).

Measured now at the airport

Philadelphia (KPHL), 7.2 mi away · 40 min ago

Visibility9.9 mi or more

WeatherNothing to note

Temperature54 °F

WindCalm

It's what the airport's weather station measured, not a forecast: on the coast, wind and fog can be different. Airports report every 30 or 60 minutes.

Airport METAR report, via NOAA's Aviation Weather Center (aviationweather.gov). Sources and licenses

Temperatures for the next 14 days

66° 46°
Today
69° 47°
Thu 29
72° 53°
Fri 30
63° 45°
Sat 31
66° 46°
Sun 1
68° 48°
Mon 2
70° 51°
Tue 3
70° 54°
Wed 4
70° 57°
Thu 5
66° 55°
Fri 6
63° 50°
Sat 7
61° 42°
Sun 8
57° 36°
Mon 9
59° 36°
Tue 10

Day by day

Day	Sky	Low / high	Rain	Max wind	High tides	Model
Today · 28	Overcast	46 / 66 °F	0%	5 mph ENE	2:15 am · 2:29 pm	HRRR
Thu 29	Mainly clear	47 / 69 °F	2%	9 mph SW	3:06 am · 3:21 pm	HRRR + NBM
Fri 30	Mainly clear	53 / 72 °F	4%	9 mph WNW	4:02 am · 4:19 pm	NBM
Sat 31	Overcast	45 / 63 °F	0%	5 mph NNW	5:02 am · 5:22 pm	NBM
Sun 1	Overcast	46 / 66 °F	1%	4 mph S	5:05 am · 5:27 pm	NBM
Mon 2	Partly cloudy	48 / 68 °F	5%	4 mph SSW	6:09 am · 6:32 pm	NBM
Tue 3	Overcast	51 / 70 °F	10%	6 mph E	7:11 am · 7:35 pm	NBM
Wed 4	Mainly clear	54 / 70 °F	23% · 0.16 in	8 mph ESE	8:10 am · 8:32 pm	NBM
Thu 5	Clear sky	57 / 70 °F	34% · 0.37 in	8 mph ESE	9:05 am · 9:25 pm	NBM
Fri 6	Light rain	55 / 66 °F	34% · 0.32 in	7 mph NNE	9:54 am · 10:14 pm	NBM
Sat 7	Light rain	50 / 63 °F	27% · 0.04 in	8 mph NW	10:40 am · 11:00 pm	NBM
Sun 8	Overcast	42 / 61 °F	20% · 0.08 in	6 mph NW	11:23 am · 11:45 pm	NBM + ECMWF
Mon 9	Clear sky	36 / 57 °F	18%	5 mph NNE	12:04 pm	ECMWF
Tue 10	Overcast	36 / 59 °F	16%	4 mph NE	12:29 am · 12:44 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	Mainly clear	Overcast	Overcast	Overcast	Mainly clear
Temperature	50°	49°	46°	51°	62°	66°	65°	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)	1 N	4 NE	3 SW	3 NE	4 E	4 SSE	2 SSE	3 ENE
Humidity	76%	71%	88%	80%	57%	53%	57%	77%
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	66°	70°	71°	59°	63°	69°	70°
AIFS	66°	69°	73°	61°	63°	67°	70°
GFS	67°	70°	71°	60°	63°	60°	65°
ICON	66°	67°	71°	61°	63°	73°	72°
HRRR	66°	69°	68°	—	—	—	—
NBM	67°	70°	72°	63°	66°	68°	70°
Confidence	high	high	high	high	high	medium	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	0.02 in	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	614	716	1122	719	420	921	1119
AIFS	5	7	12	7	5	6	8
GFS	615	717	1323	818	714	614	614
ICON	513	716	1023	718	717	717	921
HRRR	59	913	1322	—	—	—	—
NBM	47	611	917	511	47	47	611
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%	2%	6%	12%
GFS (GEFS, 31 scenarios)	0%	0%	0%	0%	0%	14%	16%
NBM (NOAA)	0%	2%	4%	0%	1%	5%	10%
Thunderstorm (NBM)	0%	0%	0%	0%	0%	0%	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 +7.6 °F	Above +73%	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal +0.5 °F	Normal	56° / 41°
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +2.3 °F	Normal	55° / 42°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +2.5 °F	A bit above +40%	52° / 41°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +1.8 °F	A bit above +28%	50° / 38°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +1.3 °F	A bit above +26%
December	A bit above +2.3 °F	A bit above +34%
January	Above +3.2 °F	A bit above +43%
February	A bit above +1.8 °F	A bit above +36%
March	A bit above +2.3 °F	A bit above +29%

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.

Chester climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Chester is from May to September: highs of 74 °F to 87 °F, about 10 rainy days a month and 7 hours of sunshine a day.

Hurricane season: from July to September, peaking in July. In the last 30 years (1996–2025), 8 tropical cyclones passed within 93 mi of Chester, about 3 every 10 years. The most recent: Elsa, in July 2021.

41° 26°

JanJ
44° 27°

FebF
53° 34°

MarM
64° 43°

AprA
74° 53°

MayM
83° 63°

JunJ
87° 68°

JulJ
85° 66°

AugA
79° 59°

SepS
67° 48°

OctO
56° 38°

NovN
46° 31°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Cyclones
JanuaryJan	41°	26°	3.30 in	7	3.5	–
FebruaryFeb	44°	27°	2.80 in	7	5.0	–
MarchMar	53°	34°	4.04 in	8	5.4	–
AprilApr	64°	43°	3.44 in	8	6.1	–
MayMay	74°	53°	3.56 in	10	6.8	–
JuneJun	83°	63°	4.03 in	11	7.2	1
JulyJul	87°	68°	4.22 in	11	7.6	3
AugustAug	85°	66°	3.95 in	10	6.8	2
SeptemberSep	79°	59°	4.23 in	8	6.0	2
OctoberOct	67°	48°	3.31 in	7	4.9	–
NovemberNov	56°	38°	3.03 in	7	4.2	–
DecemberDec	46°	31°	3.94 in	8	3.3	–

Month	Cyclones
Jan	–
Feb	–
Mar	–
Apr	–
May	–
Jun	1
Jul	3
Aug	2
Sep	2
Oct	–
Nov	–
Dec	–

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

A normal year brings 43.86 in of rain on about 102 days and about 2,050 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 51 °F

Tomorrow47 / 69 °F

It's 53 °F now (feels like 51 °F). Today, 46 °F to 66 °F; tomorrow, 47 °F to 69 °F.

Chance of rain

Today 0%
Thu 29 2%
Fri 30 4%
Sat 31 0%
Sun 1 1%
Mon 2 5%
Tue 3 10%

Today the chance of rain reaches 0%. The next day with likely rain is Wednesday 4: 23% and 0.16 in.

No rain in the last 7 days.

Humidity and dew point

Humidity83%

Dew point48 °F

Humidity is 83% 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

Now10 migood

Clouds0%

Visibility is good now (10 mi). No fog expected today.

UV index

Now0

Today's peak4moderate

Thu 29: 3 · Fri 30: 3 · Sat 31: 3

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 30.07

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 qualityModerate · 63

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	Mainly clear	49 / 66 °F	7 mph NE
Mon 26	Clear sky	40 / 69 °F	7 mph W
Sun 25	Clear sky	35 / 65 °F	4 mph NW
Sat 24	Partly cloudy	36 / 62 °F	4 mph NNE
Fri 23	Overcast	44 / 61 °F	9 mph NE
Thu 22	Overcast	44 / 67 °F	9 mph NNW
Wed 21	Overcast	46 / 64 °F	11 mph NNE

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Tue 20	Clear sky	46 / 68 °F	0	11 mph NNE
Mon 19	Clear sky	38 / 64 °F	0	7 mph NNE
Sun 18	Clear sky	39 / 59 °F	0	9 mph NNE
Sat 17	Drizzle	44 / 63 °F	0.21 in	14 mph N
Fri 16	Light rain	59 / 76 °F	0.52 in	12 mph SSW
Thu 15	Light drizzle	58 / 71 °F	0.02 in	11 mph NE
Wed 14	Light drizzle	65 / 82 °F	0.01 in	10 mph WSW
Tue 13	Clear sky	54 / 78 °F	0	11 mph SSW
Mon 12	Heavy rain	55 / 73 °F	1.29 in	12 mph N
Sun 11	Rain	59 / 64 °F	1.26 in	16 mph ENE
Sat 10	Overcast	49 / 72 °F	0	8 mph E
Fri 9	Overcast	48 / 74 °F	0	8 mph W
Thu 8	Clear sky	56 / 76 °F	0	12 mph W
Wed 7	Overcast	41 / 67 °F	0	9 mph S
Tue 6	Clear sky	47 / 63 °F	0	8 mph NW
Mon 5	Overcast	56 / 71 °F	0	11 mph WNW
Sun 4	Drizzle	58 / 61 °F	0.22 in	10 mph NE
Sat 3	Light drizzle	59 / 70 °F	0.02 in	9 mph NE
Fri 2	Light drizzle	66 / 84 °F	0.05 in	9 mph SW
Thu 1	Overcast	62 / 81 °F	0	7 mph SSW
Wed 30	Light drizzle	64 / 76 °F	0.01 in	5 mph SW
Tue 29	Overcast	62 / 72 °F	0	6 mph WNW
Mon 28	Drizzle	60 / 67 °F	0.12 in	11 mph N

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 ChesterQuestions

What's the weather like today in Chester?

Overcast, from 46 °F to 66 °F, with a light breeze from the north-northeast (4 mph) and a 0% chance of rain.

Will it rain tomorrow in Chester?

On Thursday 29 the chance of rain is 2% (0.00 in): mainly clear.

How warm will it be this week?

Between a low of 45 °F and a high of 72 °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: −0.07 inHg over the last 24 hours.

When is the best time to visit Chester?

The best time to visit Chester is from May to September: highs of 74 °F to 87 °F, about 10 rainy days a month and 7 hours of sunshine a day.

What is the weather like in Chester in October?

In October, Chester normally sees highs of 67 °F and lows of 48 °F, with about 7 rainy days (3.31 in for the month) and 5 hours of sunshine a day. These are 1991–2020 averages.

What are the warmest and wettest months in Chester?

The warmest is July, with average highs of 87 °F, and the coldest January, with lows of 26 °F. The wettest is September (4.23 in) and the driest, February.

When is hurricane season in Chester?

Hurricane season: from July to September, peaking in July. In the last 30 years (1996–2025), 8 tropical cyclones passed within 93 mi of Chester, about 3 every 10 years. The most recent: Elsa, in July 2021.

More about Chester today

Weather near Chester

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 8.8 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 11:34 pm (local time).

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

Month	Cyclones
Jan	–
Feb	–
Mar	–
Apr	–
May	–
Jun	1
Jul	3
Aug	2
Sep	2
Oct	–
Nov	–
Dec	–

Month	Cyclones
Jan	–
Feb	–
Mar	–
Apr	–
May	–
Jun	1
Jul	3
Aug	2
Sep	2
Oct	–
Nov	–
Dec	–

Month	Cyclones
Jan	–
Feb	–
Mar	–
Apr	–
May	–
Jun	1
Jul	3
Aug	2
Sep	2
Oct	–
Nov	–
Dec	–