Weather in St. Mary's

14-day forecast · updated today, Thursday, October 29, at 3:41 am (GMT-2:30)

Now · light drizzle 40 °F

Feels like: 31 °F
Low / high: 38 / 48 °F
Rain: 22% · 0.01 in
Wind: 13 mph W

↘ 30.03 inHg · falling

Today in St. Mary's: light drizzle, 38 °F to 48 °F, with a 22% chance of rain (0.01 in) and a moderate breeze from the west (13 mph). Tomorrow, rain, 44 °F to 52 °F and a 85% chance of rain. The warmest day of the week is Friday 30, at 52 °F.

Temperatures for the next 14 days

48° 38°
Today
52° 44°
Fri 30
51° 37°
Sat 31
40° 33°
Sun 1
47° 38°
Mon 2
47° 33°
Tue 3
42° 29°
Wed 4
51° 40°
Thu 5
49° 37°
Fri 6
49° 41°
Sat 7
56° 47°
Sun 8
48° 39°
Mon 9
39° 31°
Tue 10
40° 31°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	High tides	Model
Today · 29	Light drizzle	38 / 48 °F	22% · 0.01 in	20 mph W	5.1 ft	11:01 am · 11:28 pm	ECMWF
Fri 30	Rain	44 / 52 °F	85% · 0.19 in	19 mph SW	6.4 ft	11:52 am	ECMWF
Sat 31	Rain	37 / 51 °F	93% · 0.55 in	16 mph W	5.2 ft	12:21 am · 12:48 pm	ECMWF
Sun 1	Overcast	33 / 40 °F	15%	17 mph WNW	5.0 ft	1:20 am · 12:51 pm	ECMWF
Mon 2	Light drizzle	38 / 47 °F	24% · 0.04 in	21 mph WSW	7.4 ft	1:27 am · 2:01 pm	ECMWF
Tue 3	Light drizzle	33 / 47 °F	28% · 0.04 in	16 mph W	6.3 ft	2:39 am · 3:13 pm	ECMWF
Wed 4	Overcast	29 / 42 °F	24%	13 mph SE	2.4 ft	3:49 am · 4:21 pm	ECMWF
Thu 5	Light rain	40 / 51 °F	35% · 0.40 in	19 mph SW	5.8 ft	4:51 am · 5:19 pm	ECMWF
Fri 6	Overcast	37 / 49 °F	24%	5 mph SSE	3.5 ft	5:43 am · 6:10 pm	ECMWF
Sat 7	Light drizzle	41 / 49 °F	32% · 0.09 in	10 mph SE	1.7 ft	6:30 am · 6:56 pm	ECMWF
Sun 8	Light rain	47 / 56 °F	39% · 0.56 in	17 mph SSE	2.8 ft	7:13 am · 7:38 pm	ECMWF
Mon 9	Drizzle	39 / 48 °F	29% · 0.08 in	18 mph W	3.7 ft	7:54 am · 8:17 pm	ECMWF
Tue 10	Partly cloudy	31 / 39 °F	28%	12 mph NW	2.0 ft	8:32 am · 8:54 pm	ECMWF
Wed 11	Overcast	31 / 40 °F	23%	13 mph WSW	1.8 ft	9:09 am · 9:30 pm	ECMWF

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	Light drizzle	Partly cloudy	Overcast	Overcast	Overcast	Overcast	Partly cloudy
Temperature	38°	39°	41°	43°	46°	48°	45°	43°
Chance of rain	0%	16%	15%	3%	0%	0%	0%	2%
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)	8 W	12 W	13 W	13 WSW	17 W	20 W	13 WSW	11 WSW
Humidity	73%	83%	79%	77%	68%	65%	81%	86%
UV	0	0	0	0	1	1	0	0
Model	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF

Do the models agree?

Medium confidence

They broadly agree, but not quite on rain on Saturday 31: take it with some caution.

What 4 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	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	48°	52°	51°	40°	47°	47°	42°
AIFS	47°	52°	50°	40°	47°	49°	45°
GFS	48°	51°	49°	43°	47°	47°	43°
ICON	47°	52°	50°	40°	46°	46°	41°
Confidence	high	high	high	high	high	high	high

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.01 in	0.19 in	0.55 in	0	0.04 in	0.04 in	0
AIFS	0	0.19 in	0.52 in	0.01 in	0.04 in	0.02 in	0
GFS	0	0.22 in	0.76 in	0.00 in	0	0.12 in	0
ICON	0.00 in	0.26 in	0.33 in	0.02 in	0.09 in	0.04 in	0
Confidence	high	high	medium	high	medium	medium	high

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	2036	1934	1630	1732	2141	1639	1219
AIFS	16	17	16	17	17	11	6
GFS	2032	2241	1628	1726	2137	2132	1522
ICON	1936	2345	2038	2037	2343	2139	1426
Confidence	high	high	high	high	high	medium	medium

Chance of rain from the ensemble models

Model	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF (51 scenarios)	22%	85%	93%	15%	24%	28%	24%
GFS (GEFS, 31 scenarios)	0%	90%	100%	19%	10%	26%	15%

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 −2.3 °F	A bit below −39%	—
Nov 9 – Nov 15Nov 9–Nov 15	Normal −0.4 °F	Normal	—
Nov 16 – Nov 22Nov 16–Nov 22	Normal −0.7 °F	Normal	42° / 37°
Nov 23 – Nov 29Nov 23–Nov 29	Normal 0.0 °F	Normal	41° / 37°
Nov 30 – Dec 6Nov 30–Dec 6	Normal −0.4 °F	Normal	39° / 34°

Coming months

When	TemperatureTemp.	Rain
November	A bit above +1.4 °F	Normal
December	Above +3.1 °F	Normal
January	Above +4.3 °F	Normal
February	Above +4.5 °F	Normal
March	Above +3.4 °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).

St. Mary's climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit St. Mary's is in August: highs of 68 °F, about 11 rainy days a month and 6 hours of sunshine a day.

Hurricane season: from August to October, peaking in September. In the last 30 years (1996–2025), 9 tropical cyclones passed within 93 mi of St. Mary's, about 3 every 10 years; 4 of them with hurricane-force winds (74 mph or more). The most recent: Ernesto, in August 2024.

34° 22°

JanJ
33° 20°

FebF
35° 23°

MarM
42° 30°

AprA
50° 36°

MayM
58° 43°

JunJ
65° 52°

JulJ
68° 55°

AugA
63° 50°

SepS
54° 42°

OctO
46° 34°

NovN
38° 28°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	34°	22°	5.69 in	13	2.0	35°	5.9 ft	–
FebruaryFeb	33°	20°	5.11 in	11	3.5	33°	6.0 ft	–
MarchMar	35°	23°	4.96 in	11	5.1	33°	4.6 ft	–
AprilApr	42°	30°	4.58 in	11	5.3	34°	4.4 ft	–
MayMay	50°	36°	4.57 in	11	6.1	38°	3.1 ft	–
JuneJun	58°	43°	4.28 in	10	6.3	44°	3.0 ft	–
JulyJul	65°	52°	5.37 in	12	6.1	52°	3.1 ft	–
AugustAug	68°	55°	3.98 in	11	5.9	58°	2.9 ft	2
SeptemberSep	63°	50°	4.83 in	11	5.3	55°	3.5 ft	5
OctoberOct	54°	42°	5.54 in	12	3.2	50°	4.1 ft	2
NovemberNov	46°	34°	5.98 in	14	1.8	44°	5.3 ft	–
DecemberDec	38°	28°	6.05 in	15	1.4	38°	4.9 ft	–

Month	Water	Waves	Cyclones
Jan	35°	5.9 ft	–
Feb	33°	6.0 ft	–
Mar	33°	4.6 ft	–
Apr	34°	4.4 ft	–
May	38°	3.1 ft	–
Jun	44°	3.0 ft	–
Jul	52°	3.1 ft	–
Aug	58°	2.9 ft	2
Sep	55°	3.5 ft	5
Oct	50°	4.1 ft	2
Nov	44°	5.3 ft	–
Dec	38°	4.9 ft	–

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

A normal year brings 60.94 in of rain on about 140 days and about 1,600 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

Now40 °Ffeels like 31 °F

Tomorrow44 / 52 °F

It's 40 °F now (feels like 31 °F). Today, 38 °F to 48 °F; tomorrow, 44 °F to 52 °F.

Chance of rain

Today 22% 0.01 in
Fri 30 85% 0.19 in
Sat 31 93% 0.55 in
Sun 1 15%
Mon 2 24% 0.04 in
Tue 3 28% 0.04 in
Wed 4 24%

Today the chance of rain reaches 22%, with 0.01 in in total. The next day with likely rain is Friday 30: 85% and 0.19 in.

Recent rain: last 24 hours, 0.01 in; last 3 days, 0.10 in; last 7 days, 1.54 in.

Humidity and dew point

Humidity85%

Dew point36 °F

Humidity is 85% now and the dew point is 36 °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

Now15 migood

Clouds98%

Visibility is good now (15 mi). No fog expected today.

The model gives visibility up to about 15 mi: beyond that, the horizon is clear.

UV index

Now0

Today's peak2low

Fri 30: 2 · Sat 31: 1 · Sun 1: 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 Anglers say fish bite less for a while
→ Steady Anglers expect normal activity
↘ Falling · now Anglers say fish feed more before the change

29.8030.00 29.77

Falling now (−0.04 inHg in 3 hours). Over the next 48 hours: −0.28 inHg. Falling pressure: anglers say fish feed more before the change. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityFair · 31

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	Rain	Max wind
Wed 28	Partly cloudy	34 / 41 °F	0	18 mph WNW
Tue 27	Drizzle	35 / 46 °F	0.09 in	17 mph WNW
Mon 26	Mainly clear	43 / 53 °F	0	17 mph SW
Sun 25	Partly cloudy	34 / 52 °F	0	10 mph WNW
Sat 24	Drizzle	38 / 41 °F	0.28 in	28 mph NE
Fri 23	Light rain	39 / 44 °F	1.01 in	31 mph NE
Thu 22	Drizzle	36 / 48 °F	0.15 in	12 mph E

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Overcast	38 / 48 °F	0	11 mph NE
Tue 20	Overcast	41 / 53 °F	0	13 mph SW
Mon 19	Overcast	30 / 44 °F	0	12 mph WSW
Sun 18	Drizzle	40 / 44 °F	0.14 in	18 mph WNW
Sat 17	Rain	44 / 56 °F	0.82 in	24 mph SSW
Fri 16	Light rain	40 / 48 °F	0.17 in	23 mph WNW
Thu 15	Rain	41 / 56 °F	1.65 in	24 mph S
Wed 14	Light drizzle	32 / 48 °F	0.01 in	13 mph SSW
Tue 13	Heavy drizzle	33 / 42 °F	0.09 in	17 mph NNW
Mon 12	Heavy drizzle	39 / 56 °F	0.31 in	21 mph WSW
Sun 11	Light drizzle	40 / 50 °F	0.02 in	17 mph WNW
Sat 10	Drizzle	45 / 52 °F	0.11 in	17 mph W
Fri 9	Light rain	50 / 60 °F	0.25 in	17 mph SSW
Thu 8	Partly cloudy	43 / 59 °F	0	14 mph S
Wed 7	Light drizzle	47 / 55 °F	0.04 in	24 mph WSW
Tue 6	Rain	52 / 61 °F	0.88 in	25 mph SSW
Mon 5	Rain	44 / 55 °F	0.41 in	23 mph SE
Sun 4	Mainly clear	43 / 59 °F	0	8 mph WNW
Sat 3	Light drizzle	52 / 62 °F	0.09 in	17 mph WSW
Fri 2	Light drizzle	54 / 60 °F	0.06 in	17 mph SW
Thu 1	Light drizzle	51 / 60 °F	0.01 in	9 mph SSW
Wed 30	Light drizzle	53 / 62 °F	0.03 in	11 mph NE
Tue 29	Light drizzle	41 / 57 °F	0.00 in	10 mph SSE

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 St. Mary'sQuestions

What's the weather like today in St. Mary's?

Light drizzle, from 38 °F to 48 °F, with a moderate breeze from the west (13 mph) and a 22% chance of rain.

Will it rain tomorrow in St. Mary's?

On Friday 30 the chance of rain is 85% (0.19 in): rain.

How warm will it be this week?

Between a low of 29 °F and a high of 52 °F; the warmest day, Friday 30.

What's the UV index today?

It reaches 2 (low). No special protection needed.

Is the pressure rising or falling?

It's 30.03 inHg and falling: +0.13 inHg over the last 24 hours.

When is the best time to visit St. Mary's?

The best time to visit St. Mary's is in August: highs of 68 °F, about 11 rainy days a month and 6 hours of sunshine a day.

What is the weather like in St. Mary's in October?

In October, St. Mary's normally sees highs of 54 °F and lows of 42 °F, with about 12 rainy days (5.54 in for the month) and 3 hours of sunshine a day. The sea is around 50 °F. These are 1991–2020 averages.

What are the warmest and wettest months in St. Mary's?

The warmest is August, with average highs of 68 °F, and the coldest February, with lows of 20 °F. The wettest is December (6.05 in) and the driest, August.

When is hurricane season in St. Mary's?

Hurricane season: from August to October, peaking in September. In the last 30 years (1996–2025), 9 tropical cyclones passed within 93 mi of St. Mary's, about 3 every 10 years; 4 of them with hurricane-force winds (74 mph or more). The most recent: Ernesto, in August 2024.

More about St. Mary's today

Weather near St. Mary's

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 6.9 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 3:41 am (local time).

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