Weather in St. Lewis

14-day forecast · updated today, Thursday, October 29, at 7:10 am (GMT-2:30)

Now · partly cloudy 33 °F

Feels like: 22 °F
Low / high: 32 / 43 °F
Rain: 0%
Wind: 13 mph W

→ 29.70 inHg · steady

Today in St. Lewis: overcast, 32 °F to 43 °F, with a 0% chance of rain and a moderate breeze from the west (13 mph). Tomorrow, snow, 35 °F to 47 °F and a 100% chance of rain. The warmest day of the week is Friday 30, at 47 °F.

Measured now at the airport

Mary's Harbor (CYMH), 7.7 mi away · 40 min ago

Visibility9.0 mi

WeatherNothing to note

Temperature34 °F

Wind8 mph from the west-southwest

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

43° 32°
Today
47° 35°
Fri 30
36° 30°
Sat 31
38° 24°
Sun 1
44° 28°
Mon 2
37° 26°
Tue 3
33° 25°
Wed 4
40° 25°
Thu 5
47° 36°
Fri 6
46° 36°
Sat 7
36° 32°
Sun 8
40° 34°
Mon 9
34° 22°
Tue 10
31° 20°
Wed 11

Day by day

Day	Sky	Low / high	Rain	Max wind	Max wave	Model
Today · 29	Overcast	32 / 43 °F	0%	14 mph W	2.6 ft	ECMWF
Fri 30	Snow	35 / 47 °F	100% · 0.19 in	14 mph WSW	3.9 ft	ECMWF
Sat 31	Light snow	30 / 36 °F	10% · 0.04 in	12 mph NNW	3.9 ft	ECMWF
Sun 1	Light drizzle	24 / 38 °F	0% · 0.01 in	9 mph WNW	2.6 ft	ECMWF
Mon 2	Light snow	28 / 44 °F	35% · 0.02 in	13 mph WSW	3.8 ft	ECMWF
Tue 3	Light snow	26 / 37 °F	18% · 0.01 in	17 mph WNW	3.9 ft	ECMWF
Wed 4	Partly cloudy	25 / 33 °F	25%	11 mph WNW	3.4 ft	ECMWF
Thu 5	Light drizzle	25 / 40 °F	23% · 0.01 in	12 mph SSW	3.9 ft	ECMWF
Fri 6	Light drizzle	36 / 47 °F	29% · 0.02 in	11 mph SSW	2.8 ft	ECMWF
Sat 7	Light drizzle	36 / 46 °F	33% · 0.06 in	7 mph S	—	ECMWF
Sun 8	Heavy drizzle	32 / 36 °F	35% · 0.43 in	10 mph NE	—	ECMWF
Mon 9	Snow	34 / 40 °F	24% · 0.31 in	14 mph N	—	ECMWF
Tue 10	Snow	22 / 34 °F	26% · 0.05 in	18 mph NW	—	ECMWF
Wed 11	Mainly clear	20 / 31 °F	18%	8 mph W	—	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	Mainly clear	Partly cloudy	Overcast	Overcast	Overcast	Overcast
Temperature	34°	33°	32°	34°	38°	43°	38°	35°
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)	14 W	13 W	13 W	11 W	11 W	12 W	6 WSW	6 WSW
Humidity	58%	62%	66%	67%	56%	45%	58%	65%
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 wind 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	43°	47°	36°	38°	44°	37°	33°
AIFS	40°	39°	35°	38°	42°	37°	39°
GFS	40°	40°	36°	39°	43°	38°	37°
ICON	42°	41°	36°	37°	41°	37°	37°
Confidence	high	medium	high	high	high	high	medium

Do the models agree? · Rain
Rain	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	0	0.19 in	0.04 in	0.01 in	0.02 in	0.01 in	0
AIFS	0.01 in	0.18 in	0.02 in	0	0	0	0
GFS	0	0.20 in	0.04 in	0	0	0.01 in	0
ICON	0	0.26 in	0.07 in	0	0	0.01 in	0
Confidence	high	high	medium	high	high	high	high

Do the models agree? · Wind
Wind (mph)	Today	Fri 30	Sat 31	Sun 1	Mon 2	Tue 3	Wed 4
ECMWF	1425	1427	1224	926	1336	1735	1124
AIFS	16	15	14	13	16	17	11
GFS	2131	2028	1723	1525	2437	3047	1727
ICON	1223	1122	1019	1427	1632	2147	1225
Confidence	medium	medium	medium	high	medium	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)	0%	100%	10%	0%	35%	18%	25%
GFS (GEFS, 31 scenarios)	0%	94%	23%	3%	29%	13%	13%

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	Sea	Typical high / low
Nov 2 – Nov 8Nov 2–Nov 8	A bit below −1.4 °F	A bit below −24%	A bit below −1.3 °F	—
Nov 9 – Nov 15Nov 9–Nov 15	A bit above +0.9 °F	Normal	Normal −0.4 °F	—
Nov 16 – Nov 22Nov 16–Nov 22	A bit above +0.9 °F	Normal	Normal 0.0 °F	34° / 31°
Nov 23 – Nov 29Nov 23–Nov 29	A bit above +1.4 °F	Normal	Normal +0.4 °F	33° / 30°
Nov 30 – Dec 6Nov 30–Dec 6	A bit above +2.2 °F	Normal	A bit above +0.7 °F	31° / 28°

Coming months

When	TemperatureTemp.	Rain	Sea
November	A bit above +2.0 °F	Normal	A bit above +1.6 °F
December	Above +4.3 °F	Normal	A bit above +1.6 °F
January	Well above +6.3 °F	Normal	Normal +0.4 °F
February	Well above +5.6 °F	Normal	Normal +0.2 °F
March	Above +2.7 °F	Normal	Normal +0.2 °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.

St. Lewis climate by monthClimate by month

Normal weather for each month (1991–2020 averages)

The best time to visit St. Lewis is from July to August: highs of 64 °F to 65 °F, about 12 rainy days a month and 6 hours of sunshine a day.

21° 5°

JanJ
21° 6°

FebF
28° 13°

MarM
37° 25°

AprA
45° 33°

MayM
56° 42°

JunJ
64° 49°

JulJ
65° 51°

AugA
58° 44°

SepS
46° 35°

OctO
37° 26°

NovN
28° 15°

DecD

Highs and lows
Monthly rainfall
Best time

Month	High	Low	Rain	Rainy daysDays	Sun (h/day)	Water	Waves
JanuaryJan	21°	5°	3.15 in	9	2.8	31°	7.0 ft
FebruaryFeb	21°	6°	3.56 in	9	4.1	31°	5.5 ft
MarchMar	28°	13°	3.26 in	11	5.7	31°	7.0 ft
AprilApr	37°	25°	2.59 in	12	6.9	31°	4.4 ft
MayMay	45°	33°	2.79 in	11	6.1	32°	4.2 ft
JuneJun	56°	42°	3.19 in	12	6.2	37°	4.0 ft
JulyJul	64°	49°	3.20 in	13	6.3	45°	3.3 ft
AugustAug	65°	51°	3.10 in	11	5.6	49°	3.5 ft
SeptemberSep	58°	44°	2.87 in	10	4.5	45°	4.3 ft
OctoberOct	46°	35°	3.78 in	12	2.4	40°	5.6 ft
NovemberNov	37°	26°	3.48 in	11	2.3	36°	6.5 ft
DecemberDec	28°	15°	3.25 in	12	2.0	32°	7.1 ft

Month	Water	Waves
Jan	31°	7.0 ft
Feb	31°	5.5 ft
Mar	31°	7.0 ft
Apr	31°	4.4 ft
May	32°	4.2 ft
Jun	37°	4.0 ft
Jul	45°	3.3 ft
Aug	49°	3.5 ft
Sep	45°	4.3 ft
Oct	40°	5.6 ft
Nov	36°	6.5 ft
Dec	32°	7.1 ft

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

A normal year brings 38.20 in of rain on about 133 days and about 1,650 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

Now33 °Ffeels like 22 °F

Tomorrow35 / 47 °F

It's 33 °F now (feels like 22 °F). Today, 32 °F to 43 °F; tomorrow, 35 °F to 47 °F.

Chance of rain

Today 0%
Fri 30 100% 0.19 in
Sat 31 10% 0.04 in
Sun 1 0% 0.01 in
Mon 2 35% 0.02 in
Tue 3 18% 0.01 in
Wed 4 25%

Today the chance of rain reaches 0%. The next day with likely rain is Friday 30: 100% and 0.19 in.

No rain in the last 7 days.

Humidity and dew point

Humidity67%

Dew point23 °F

Humidity is 67% now and the dew point is 23 °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

Clouds67%

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 peak1low

Fri 30: 0 · 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 · now Anglers expect normal activity
↘ Falling Anglers say fish feed more before the change

29.4029.6029.80 29.38

Steady now (−0.02 inHg in 3 hours). Over the next 48 hours: +0.17 inHg. Steady pressure: anglers expect normal activity. Fast changes, either way, tend to affect fishing.

Air and pollen

Air qualityFair · 28

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
Wed 28	Overcast	27 / 38 °F	20 mph WNW
Tue 27	Overcast	31 / 40 °F	21 mph WNW
Mon 26	Overcast	41 / 55 °F	12 mph WSW
Sun 25	Overcast	38 / 48 °F	13 mph W
Sat 24	Partly cloudy	26 / 52 °F	13 mph WSW
Fri 23	Overcast	29 / 38 °F	18 mph NNW
Thu 22	Overcast	37 / 51 °F	18 mph WSW

Show all 30 days

Day	Sky	Low / high	Rain	Max wind
Wed 21	Overcast	30 / 47 °F	0	10 mph WSW
Tue 20	Overcast	37 / 51 °F	0	15 mph WNW
Mon 19	Overcast	26 / 43 °F	0	23 mph SW
Sun 18	Overcast	28 / 36 °F	0	14 mph W
Sat 17	Heavy snow	31 / 37 °F	0.53 in	17 mph NNE
Fri 16	Overcast	32 / 41 °F	0	23 mph NW
Thu 15	Heavy drizzle	36 / 40 °F	0.39 in	21 mph NNW
Wed 14	Overcast	29 / 49 °F	0	11 mph SW
Tue 13	Partly cloudy	29 / 40 °F	0	15 mph WNW
Mon 12	Light snow	31 / 38 °F	0.06 in	15 mph NNW
Sun 11	Overcast	35 / 43 °F	0	16 mph WNW
Sat 10	Light drizzle	39 / 44 °F	0.02 in	14 mph NNW
Fri 9	Drizzle	46 / 59 °F	0.19 in	14 mph SW
Thu 8	Drizzle	36 / 46 °F	0.14 in	14 mph S
Wed 7	Light drizzle	40 / 49 °F	0.01 in	23 mph W
Tue 6	Rain	43 / 55 °F	1.07 in	24 mph SSE
Mon 5	Drizzle	46 / 51 °F	0.04 in	17 mph S
Sun 4	Partly cloudy	41 / 58 °F	0	13 mph W
Sat 3	Overcast	43 / 54 °F	0	11 mph NW
Fri 2	Drizzle	49 / 61 °F	0.08 in	19 mph SW
Thu 1	Overcast	47 / 60 °F	0	19 mph SW
Wed 30	Overcast	40 / 50 °F	0	12 mph S
Tue 29	Overcast	43 / 63 °F	0	12 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 St. LewisQuestions

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

Overcast, from 32 °F to 43 °F, with a moderate breeze from the west (13 mph) and a 0% chance of rain.

Will it rain tomorrow in St. Lewis?

On Friday 30 the chance of rain is 100% (0.19 in): snow.

How warm will it be this week?

Between a low of 24 °F and a high of 47 °F; the warmest day, Friday 30.

What's the UV index today?

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

Is the pressure rising or falling?

It's 29.70 inHg and steady: −0.11 inHg over the last 24 hours.

When is the best time to visit St. Lewis?

The best time to visit St. Lewis is from July to August: highs of 64 °F to 65 °F, about 12 rainy days a month and 6 hours of sunshine a day.

What is the weather like in St. Lewis in October?

In October, St. Lewis normally sees highs of 46 °F and lows of 35 °F, with about 12 rainy days (3.78 in for the month) and 2 hours of sunshine a day. The sea is around 40 °F. These are 1991–2020 averages.

What are the warmest and wettest months in St. Lewis?

The warmest is August, with average highs of 65 °F, and the coldest January, with lows of 5 °F. The wettest is October (3.78 in) and the driest, April.

More about St. Lewis today

Weather near St. Lewis

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 8.7 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 7:10 am (local time).

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