Weather in Saint-Marc

14-day forecast · updated today, Thursday, October 29, at 3:16 am (EDT)

Now · clear 82 °F

Feels like: 92 °F
Low / high: 81 / 83 °F
Rain: 84% · 0.13 in
Wind: 5 mph SSE

↘ 29.90 inHg · falling UV 8 · very high

Today in Saint-Marc: drizzle, 81 °F to 83 °F, with a 84% chance of rain (0.13 in) and a light breeze from the south-southeast (5 mph). Tomorrow, light drizzle, 79 °F to 84 °F and a 56% chance of rain. The warmest day of the week is Saturday 31, at 85 °F.

Temperatures for the next 14 days

83° 81°
Today
84° 79°
Fri 30
85° 78°
Sat 31
83° 81°
Sun 1
83° 81°
Mon 2
82° 79°
Tue 3
83° 79°
Wed 4
82° 80°
Thu 5
83° 80°
Fri 6
83° 81°
Sat 7
84° 81°
Sun 8
84° 81°
Mon 9
84° 81°
Tue 10
84° 81°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	Model
Today · 29	Drizzle	81 / 83 °F	84% · 0.13 in	8 mph SSE	0.5 ft	ECMWF
Fri 30	Light drizzle	79 / 84 °F	56% · 0.05 in	8 mph NW	0.3 ft	ECMWF
Sat 31	Light drizzle	78 / 85 °F	33% · 0.04 in	5 mph WSW	0.5 ft	ECMWF
Sun 1	Light showers	81 / 83 °F	58% · 0.28 in	6 mph S	0.5 ft	ECMWF
Mon 2	Drizzle	81 / 83 °F	37% · 0.16 in	9 mph SSE	0.1 ft	ECMWF
Tue 3	Drizzle	79 / 82 °F	51% · 0.15 in	11 mph S	0.2 ft	ECMWF
Wed 4	Light drizzle	79 / 83 °F	36% · 0.04 in	5 mph S	0.1 ft	ECMWF
Thu 5	Light drizzle	80 / 82 °F	40% · 0.14 in	7 mph S	0.1 ft	ECMWF
Fri 6	Light drizzle	80 / 83 °F	55% · 0.11 in	5 mph S	0.3 ft	ECMWF
Sat 7	Drizzle	81 / 83 °F	39% · 0.16 in	3 mph E	0.5 ft	ECMWF
Sun 8	Light drizzle	81 / 84 °F	37% · 0.07 in	7 mph WSW	0.5 ft	ECMWF
Mon 9	Light drizzle	81 / 84 °F	27% · 0.05 in	7 mph NW	0.7 ft	ECMWF
Tue 10	Mainly clear	81 / 84 °F	33%	5 mph S	0.7 ft	ECMWF
Wed 11	Overcast	81 / 84 °F	33%	6 mph SSE	0.5 ft	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.

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	Drizzle	Light drizzle	Light drizzle	Mainly clear
Temperature	83°	82°	82°	82°	83°	83°	81°	81°
Chance of rain	6%	0%	3%	12%	38%	76%	76%	34%
Rain	0.00 in	0.00 in	0.00 in	0.00 in	0.02 in	0.02 in	0.00 in	0.00 in
Wind (mph)	6 SSE	5 SSE	3 SE	5 S	5 SSW	3 N	7 SSE	3 S
Humidity	79%	82%	80%	83%	82%	81%	84%	85%
UV	0	0	0	2	8	4	0	0
Model	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF	ECMWF

Do the models agree?

Medium confidence

They broadly agree, but not quite on temperature today: 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	83°	84°	85°	83°	83°	82°	83°
AIFS	86°	86°	87°	87°	87°	85°	84°
GFS	91°	90°	90°	89°	86°	79°	86°
ICON	88°	89°	92°	90°	89°	88°	89°
Confidence	medium	medium	medium	medium	medium	medium	medium

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0.13 in	0.05 in	0.04 in	0.28 in	0.16 in	0.15 in	0.04 in
AIFS	0.15 in	0.14 in	0.11 in	0.11 in	0.09 in	0.30 in	0.25 in
GFS	0.19 in	0	0.09 in	0.29 in	0.36 in	0.01 in	0.08 in
ICON	0.10 in	0	0	0	0	0	0
Confidence	high	medium	medium	medium	medium	low	low

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	813	813	510	613	913	1117	515
AIFS	3	4	4	4	4	3	2
GFS	99	97	98	95	74	611	84
ICON	611	612	712	610	612	612	813
Confidence	high	high	high	high	high	medium	high

Chance of rain from the ensemble models

Model	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF (51 scenarios)	84%	56%	33%	58%	37%	51%	36%
GFS (GEFS, 31 scenarios)	93%	94%	87%	78%	67%	39%	35%

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: a bit warmer, normal rain and a slightly warmer sea.

Next 6 weeks

When	TemperatureTemp.	Rain	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	Normal +0.5 °F	Normal	A bit above +0.9 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +1.4 °F	Normal	A bit above +1.1 °F	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +1.3 °F	Normal	A bit above +1.3 °F	84° / 76°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +1.4 °F	Normal	A bit above +1.4 °F	84° / 75°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +1.6 °F	Above +59%	A bit above +1.6 °F	83° / 75°

Coming months

When	TemperatureTemp.	Rain	Sea
November	Above +2.9 °F	Normal	Above +2.3 °F
December	Above +3.1 °F	Well above +160%	Above +2.7 °F
January	Above +2.7 °F	Well above +239%	Above +2.7 °F
February	A bit above +2.5 °F	Well above +126%	Above +2.5 °F
March	A bit above +2.3 °F	Well above +100%	Above +2.3 °F

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.

Saint-Marc climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit Saint-Marc is from December to March: highs of 88 °F to 89 °F, about 3 rainy days a month and 6 hours of sunshine a day.

Hurricane season: from August to October, peaking in August. In the last 30 years (1996–2025), 14 tropical cyclones passed within 93 mi of Saint-Marc, about 5 every 10 years; 4 of them with hurricane-force winds (74 mph or more). The most recent: Grace, in August 2021.

88° 66°

JanJ
88° 66°

FebF
89° 68°

MarM
90° 71°

AprA
90° 72°

MayM
91° 72°

JunJ
92° 73°

JulJ
93° 73°

AugA
92° 72°

SepS
92° 72°

OctO
89° 70°

NovN
88° 68°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves	Cyclones
JanuaryJan	88°	66°	0.28 in	3	6.3	82°	1.3 ft	–
FebruaryFeb	88°	66°	0.33 in	2	7.0	81°	1.3 ft	–
MarchMar	89°	68°	0.48 in	3	7.2	81°	1.4 ft	–
AprilApr	90°	71°	1.64 in	4	7.4	82°	1.0 ft	–
MayMay	90°	72°	4.08 in	7	6.1	83°	0.8 ft	–
JuneJun	91°	72°	4.96 in	4	7.0	85°	0.7 ft	–
JulyJul	92°	73°	4.79 in	3	7.6	85°	0.8 ft	1
AugustAug	93°	73°	4.96 in	5	7.3	86°	0.9 ft	6
SeptemberSep	92°	72°	4.77 in	6	6.2	86°	0.7 ft	3
OctoberOct	92°	72°	3.83 in	7	5.7	86°	0.9 ft	2
NovemberNov	89°	70°	1.15 in	6	5.7	85°	1.1 ft	1
DecemberDec	88°	68°	0.32 in	3	5.8	83°	1.2 ft	1

Month	Water	Waves	Cyclones
Jan	82°	1.3 ft	–
Feb	81°	1.3 ft	–
Mar	81°	1.4 ft	–
Apr	82°	1.0 ft	–
May	83°	0.8 ft	–
Jun	85°	0.7 ft	–
Jul	85°	0.8 ft	1
Aug	86°	0.9 ft	6
Sep	86°	0.7 ft	3
Oct	86°	0.9 ft	2
Nov	85°	1.1 ft	1
Dec	83°	1.2 ft	1

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

A normal year brings 31.58 in of rain on about 52 days and about 2,400 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

Now82 °Ffeels like 92 °F

Tomorrow79 / 84 °F

It's 82 °F now (feels like 92 °F). Today, 81 °F to 83 °F; tomorrow, 79 °F to 84 °F.

Chance of rain

Today 84% 0.13 in
Fri 30 56% 0.05 in
Sat 31 33% 0.04 in
Sun 1 58% 0.28 in
Mon 2 37% 0.16 in
Tue 3 51% 0.15 in
Wed 4 36% 0.04 in

Today the chance of rain reaches 84%, with 0.13 in in total. The next day with likely rain is Friday 30: 56% and 0.05 in.

Recent rain: last 24 hours, 0.00 in; last 3 days, 3.89 in; last 7 days, 6.48 in.

Humidity and dew point

Humidity82%

Dew point76 °F

Humidity is 82% now and the dew point is 76 °F. With a dew point this high, it feels muggy.

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

Clouds14%

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 peak8very high

Fri 30: 8 · Sat 31: 8 · Sun 1: 8

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

29.9030.00 30.00

Falling now (−0.03 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 · 48

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	Mainly clear	81 / 87 °F	0	8 mph S
Tue 27	Drizzle	79 / 83 °F	0.19 in	12 mph SSE
Mon 26	Heavy showers	78 / 81 °F	4.25 in	10 mph S
Sun 25	Showers	80 / 86 °F	1.16 in	15 mph S
Sat 24	Showers	78 / 88 °F	0.54 in	7 mph S
Fri 23	Light showers	80 / 86 °F	0.26 in	9 mph SSE
Thu 22	Light drizzle	80 / 87 °F	0.09 in	6 mph S

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Mainly clear	79 / 84 °F	0	9 mph SSW
Tue 20	Light showers	80 / 86 °F	0.25 in	10 mph SSE
Mon 19	Light drizzle	83 / 85 °F	0.04 in	9 mph SSE
Sun 18	Light drizzle	83 / 85 °F	0.07 in	6 mph N
Sat 17	Light drizzle	83 / 87 °F	0.07 in	5 mph SSW
Fri 16	Light drizzle	81 / 86 °F	0.08 in	6 mph WNW
Thu 15	Light drizzle	83 / 87 °F	0.02 in	6 mph WNW
Wed 14	Light showers	79 / 85 °F	0.40 in	7 mph ENE
Tue 13	Light showers	81 / 86 °F	0.43 in	6 mph S
Mon 12	Light drizzle	82 / 87 °F	0.07 in	9 mph SSE
Sun 11	Light drizzle	82 / 87 °F	0.12 in	6 mph SE
Sat 10	Light drizzle	83 / 87 °F	0.04 in	6 mph SW
Fri 9	Drizzle	82 / 86 °F	0.27 in	8 mph SSE
Thu 8	Drizzle	83 / 84 °F	0.12 in	16 mph SSE
Wed 7	Drizzle	82 / 86 °F	0.19 in	7 mph WSW
Tue 6	Drizzle	82 / 86 °F	0.17 in	6 mph SE
Mon 5	Overcast	83 / 86 °F	0	9 mph SSW
Sun 4	Drizzle	79 / 85 °F	0.18 in	11 mph SSE
Sat 3	Showers	83 / 87 °F	0.73 in	8 mph SSE
Fri 2	Light showers	83 / 88 °F	0.52 in	9 mph SSE
Thu 1	Light drizzle	84 / 89 °F	0.04 in	7 mph SSE
Wed 30	Light drizzle	84 / 88 °F	0.05 in	8 mph S
Tue 29	Light drizzle	83 / 89 °F	0.05 in	8 mph WSW

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 Saint-MarcQuestions

What's the weather like today in Saint-Marc?

Drizzle, from 81 °F to 83 °F, with a light breeze from the south-southeast (5 mph) and a 84% chance of rain.

Will it rain tomorrow in Saint-Marc?

On Friday 30 the chance of rain is 56% (0.05 in): light drizzle.

How warm will it be this week?

Between a low of 78 °F and a high of 85 °F; the warmest day, Saturday 31.

What's the UV index today?

It reaches 8 (very high). Avoid the midday sun; reflection off the water adds to it.

Is the pressure rising or falling?

It's 29.90 inHg and falling: −0.01 inHg over the last 24 hours.

When is the best time to visit Saint-Marc?

The best time to visit Saint-Marc is from December to March: highs of 88 °F to 89 °F, about 3 rainy days a month and 6 hours of sunshine a day.

What is the weather like in Saint-Marc in October?

In October, Saint-Marc normally sees highs of 92 °F and lows of 72 °F, with about 7 rainy days (3.83 in for the month) and 6 hours of sunshine a day. The sea is around 86 °F. These are 1991–2020 averages.

What are the warmest and wettest months in Saint-Marc?

The warmest is August, with average highs of 93 °F, and the coldest January, with lows of 66 °F. The wettest is August (4.96 in) and the driest, January.

When is hurricane season in Saint-Marc?

Hurricane season: from August to October, peaking in August. In the last 30 years (1996–2025), 14 tropical cyclones passed within 93 mi of Saint-Marc, about 5 every 10 years; 4 of them with hurricane-force winds (74 mph or more). The most recent: Grace, in August 2021.

More about Saint-Marc today

Weather near Saint-Marc

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 8.3 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 3:16 am (local time).

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