St Just (Cornwall) weather

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Forecast days

Tue 15 Sep

Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 13° Celsius;

Sunrise: 06:59

Sunset: 19:36

Partly cloudy.

M UV

L Pollution

No pollen data.

Tue 15 Sep

Maximum daytime temperature: 16 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius;
Wed 16 Sep

Maximum daytime temperature: 16° Celsius; Minimum nighttime temperature: 14° Celsius;

Sunrise: 07:00

Sunset: 19:34

Light showers changing to sunny intervals by late morning.

M UV

L Pollution

No pollen data.

Wed 16 Sep

Maximum daytime temperature: 16 degrees Celsius; Minimum nighttime temperature: 14 degrees Celsius;
Thu 17 Sep

Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 13° Celsius;

Sunrise: 07:02

Sunset: 19:32

Sunny intervals changing to partly cloudy by early evening.

M UV

L Pollution

No pollen data.

Thu 17 Sep

Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 13 degrees Celsius;
Fri 18 Sep

Maximum daytime temperature: 17° Celsius; Minimum nighttime temperature: 16° Celsius;

Sunrise: 07:03

Sunset: 19:30

Cloudy changing to light rain in the afternoon.

M UV

L Pollution

No pollen data.

Fri 18 Sep

Maximum daytime temperature: 17 degrees Celsius; Minimum nighttime temperature: 16 degrees Celsius;
Sat 19 Sep

Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 16° Celsius;

Sunrise: 07:05

Sunset: 19:27

Mist changing to overcast by lunchtime.

M UV

L Pollution

No pollen data.

Sat 19 Sep

Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 16 degrees Celsius;
Sun 20 Sep

Maximum daytime temperature: 19° Celsius; Minimum nighttime temperature: 15° Celsius;

Sunrise: 07:06

Sunset: 19:25

Mist changing to cloudy by lunchtime.

M UV

No pollution data.

No pollen data.

Sun 20 Sep

Maximum daytime temperature: 19 degrees Celsius; Minimum nighttime temperature: 15 degrees Celsius;
Mon 21 Sep

Maximum daytime temperature: 18° Celsius; Minimum nighttime temperature: 15° Celsius;

Sunrise: 07:08

Sunset: 19:23

Mist changing to overcast by late morning.

M UV

No pollution data.

No pollen data.

Mon 21 Sep

Maximum daytime temperature: 18 degrees Celsius; Minimum nighttime temperature: 15 degrees Celsius;

Partly cloudy.

Sunrise: 06:59

Sunset: 19:36

M UV

L Pollution

No pollen data.

7 day forecast for St Just

Today (15 September 2026)

Time	23:00
Weather symbols
Chance of precipitation	20%
Temperature (°C)	15°
Feels like temperature (°C)	13°
Wind direction and speed (mph)	NNW 13
Wind gust (mph)	26
Visibility (description)	VG
Humidity	85%
UV	-

Wednesday (16 September 2026)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	10%	<5%	<5%	<5%	20%	50%	50%	60%	60%	50%	40%	30%	30%	50%	50%	40%	40%	30%	20%	10%	10%	30%	40%	50%
Temperature (°C)	15°	15°	14°	14°	14°	14°	14°	13°	14°	14°	15°	15°	16°	16°	16°	16°	16°	15°	15°	15°	14°	14°	14°	14°
Feels like temperature (°C)	12°	12°	12°	11°	11°	11°	11°	11°	11°	12°	12°	13°	14°	14°	14°	14°	14°	14°	13°	12°	12°	12°	11°	11°
Wind direction and speed (mph)	NNW 14	NNW 15	NNW 16	NNW 15	NNW 14	NNW 13	NNW 13	NNW 14	NNW 13	NNW 13	NNW 13	NW 13	NW 13	NW 13	NW 10	WNW 9	W 9	W 10	W 12	W 13	W 14	WSW 15	WSW 16	WSW 16
Wind gust (mph)	27	27	28	26	26	26	26	25	25	24	22	22	21	21	20	20	21	22	24	26	26	26	28	29
Visibility (description)	VG	G	G	VG	VG	G	G	VG	VG	G	VG	VG	VG	VG	G	VG	VG	VG	VG	VG	VG	VG	G	G
Humidity	85%	84%	84%	84%	84%	84%	83%	83%	83%	80%	76%	76%	75%	76%	77%	78%	78%	76%	74%	76%	75%	75%	78%	83%
UV	-	-	-	-	-	-	-	1	1	1	3	4	4	4	4	3	2	1	1	1	-	-	-	-

Thursday (17 September 2026)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	50%	60%	80%	90%	≥95%	90%	50%	20%	10%	10%	10%	10%	10%	20%	20%	30%	30%	20%	30%	20%	10%	10%	10%	20%
Temperature (°C)	14°	14°	14°	15°	15°	15°	15°	15°	14°	15°	15°	16°	16°	16°	16°	16°	16°	15°	15°	14°	14°	14°	14°	14°
Feels like temperature (°C)	11°	11°	12°	12°	12°	12°	12°	12°	12°	12°	12°	13°	13°	13°	13°	13°	12°	12°	12°	12°	11°	11°	11°	11°
Wind direction and speed (mph)	WSW 16	WSW 16	WSW 16	WSW 16	WSW 17	WSW 17	W 16	WNW 16	WNW 15	WNW 16	WNW 16	WNW 16	WNW 16	WNW 17	WNW 17	WNW 16	WNW 17	WNW 17	WNW 16	WNW 16	WNW 16	WNW 16	WNW 16	WNW 16
Wind gust (mph)	30	30	30	31	31	30	29	28	27	27	28	28	28	29	29	30	30	30	30	30	29	29	29	28
Visibility (description)	G	M	M	M	P	P	P	M	G	VG	VG	VG	VG	VG	VG	VG	G	G	G	VG	VG	VG	VG	VG
Humidity	85%	88%	87%	92%	95%	97%	94%	88%	83%	76%	73%	68%	66%	65%	66%	65%	70%	70%	71%	74%	73%	73%	73%	72%
UV	-	-	-	-	-	-	-	1	1	1	2	3	3	4	3	3	2	1	1	1	-	-	-	-

Friday (18 September 2026)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	20%	20%	20%	20%	10%	10%	10%	10%	10%	<5%	10%	20%	30%	40%	50%	60%	70%	60%	50%	30%	20%	30%	30%	30%
Temperature (°C)	14°	13°	13°	13°	13°	13°	13°	13°	13°	14°	15°	16°	16°	16°	16°	16°	16°	16°	16°	16°	16°	16°	16°	16°
Feels like temperature (°C)	11°	11°	11°	11°	11°	11°	12°	11°	12°	13°	13°	14°	13°	13°	13°	13°	13°	13°	13°	13°	13°	13°	14°	13°
Wind direction and speed (mph)	WNW 14	WNW 13	WNW 13	WNW 13	WNW 11	WNW 10	W 9	W 9	W 9	WSW 10	WSW 11	WSW 14	SW 16	SW 16	SW 17	SW 18	SW 18	SW 18	SW 18	SW 17	SW 17	WSW 16	SW 16	SW 16
Wind gust (mph)	27	25	24	24	23	21	20	19	19	21	23	24	26	29	30	31	32	31	30	28	28	28	27	27
Visibility (description)	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	VG	G	G	M	M	P	P	P	P	P	P	VP	VP
Humidity	74%	75%	76%	75%	75%	77%	77%	82%	82%	76%	73%	72%	71%	73%	76%	78%	86%	91%	95%	96%	95%	95%	94%	95%
UV	-	-	-	-	-	-	-	1	1	1	2	3	2	3	2	1	1	1	1	1	-	-	-	-

Saturday (19 September 2026)

Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Weather symbols
Chance of precipitation	30%	20%	10%	20%	20%	20%	30%	30%	30%	20%	20%	20%	30%	10%	10%	10%	10%	10%	10%	10%	10%	10%	10%	10%
Temperature (°C)	16°	16°	16°	16°	16°	16°	16°	16°	16°	16°	17°	17°	17°	18°	18°	18°	18°	18°	17°	17°	16°	16°	16°	16°
Feels like temperature (°C)	13°	13°	13°	13°	13°	13°	13°	13°	13°	14°	14°	14°	15°	15°	15°	16°	15°	15°	15°	15°	15°	14°	14°	14°
Wind direction and speed (mph)	WSW 16	WSW 16	WSW 16	WSW 16	WSW 16	SW 16	SW 16	SW 16	SW 16	SW 16	SW 16	SW 17	SW 17	SW 17	SW 17	SW 16	SW 16	SW 16	SW 15	SW 14	SW 13	SW 13	SW 13	SW 11
Wind gust (mph)	27	26	26	25	26	26	26	26	26	27	27	27	27	26	25	25	25	24	23	23	22	22	22	22
Visibility (description)	P	P	M	M	M	P	P	P	P	P	P	P	M	P	M	M	M	M	M	P	P	P	M	M
Humidity	95%	94%	93%	94%	94%	94%	96%	96%	96%	95%	95%	95%	93%	91%	89%	89%	90%	90%	91%	93%	93%	94%	94%	95%
UV	-	-	-	-	-	-	-	1	1	1	2	3	3	3	3	2	2	1	1	1	-	-	-	-

Sunday (20 September 2026)

Time	00:00	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	10%	10%	10%	10%	<5%	<5%	<5%	<5%	<5%
Temperature (°C)	16°	16°	16°	16°	17°	19°	18°	16°	15°
Feels like temperature (°C)	14°	14°	14°	15°	16°	17°	17°	16°	15°
Wind direction and speed (mph)	SW 11	WSW 11	WSW 11	WSW 9	SW 10	WSW 11	WSW 10	SW 8	SW 7
Wind gust (mph)	21	21	19	17	18	18	16	11	9
Visibility (description)	M	M	P	P	P	P	M	M	VP
Humidity	95%	95%	95%	95%	91%	84%	84%	91%	96%
UV	-	-	-	1	2	4	2	1	-

Monday (21 September 2026)

Time	01:00	04:00	07:00	10:00	13:00	16:00	19:00	22:00
Weather symbols
Chance of precipitation	<5%	<5%	<5%	10%	<5%	<5%	10%	<5%
Temperature (°C)	15°	15°	15°	17°	18°	18°	16°	15°
Feels like temperature (°C)	15°	15°	15°	16°	17°	17°	15°	14°
Wind direction and speed (mph)	SW 7	SSW 7	SSW 7	S 9	S 9	S 9	SSE 8	SSE 8
Wind gust (mph)	9	10	14	16	16	15	11	11
Visibility (description)	VP	VP	VP	P	M	M	P	VP
Humidity	97%	97%	97%	91%	85%	83%	92%	96%
UV	-	-	1	2	4	2	1	-

UK video forecast

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in force for England

Flood warnings may be in force for England

Environment Agency

South West England weather forecast

Headline:

Feeling fresher with sunshine and showers on Wednesday.

This Evening and Tonight:

Showers and clear spells this evening and overnight. Breezy especially around the coasts, but feeling cooler and fresher compared to recent nights though cloud and breeze keeping temperatures up. Minimum temperature 10 °C.

Wednesday:

A mixture of sunshine and showers on Wednesday, these most frequent in the morning before easing from the west. Rain then arriving overnight. Cooler than Tuesday. Maximum temperature 19 °C.

Outlook for Thursday to Saturday:

A damp start to Thursday with outbreaks of rain clearing sunny spells. Further wet weather arriving by the afternoon on Friday. Dull on Saturday with rain and stronger winds.

Updated: 16:00 (UTC+1) on Tue 15 Sep 2026

UK long range weather forecast

The first part of this period will likely see a build of pressure across much of the UK, with Atlantic weather fronts becoming more confined to northern and northwestern areas. As such, plenty of dry and increasingly warm and perhaps rather humid weather will develop, whilst the bulk of the rain and possible strong winds are more likely to affect the northwest of the UK. Many areas may remain mostly settled towards the end of September, but there is the possibility of areas of low pressure moving in from the Atlantic bringing more widely unsettled conditions.

Updated: 13:00 (UTC+1) on Tue 15 Sep 2026

More changeable weather may become established more widely as we move into October, though parts of the west and northwest are perhaps most likely to see wet and windy conditions at times. As is not untypical as we move towards mid October, deep low pressure systems could bring occasional periods of very strong winds. Temperatures are likely to remain above normal overall, though brief cooler interludes are also possible.

Updated: 14:00 (UTC+1) on Tue 15 Sep 2026

St Just (Cornwall) weather

Find a forecast

Forecast days

Tue 15 Sep

Tue 15 Sep

Wed 16 Sep

Wed 16 Sep

Thu 17 Sep

Thu 17 Sep

Fri 18 Sep

Fri 18 Sep

Sat 19 Sep

Sat 19 Sep

Sun 20 Sep

Sun 20 Sep

Mon 21 Sep

Mon 21 Sep

7 day forecast for St Just

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UK video forecast

South West England weather forecast

Headline:

This Evening and Tonight:

Wednesday:

Outlook for Thursday to Saturday:

UK long range weather forecast

Nearest forecasts

St Just (Cornwall) weather

Find a forecast

Forecast days

Tue 15 Sep

Tue 15 Sep

Wed 16 Sep

Wed 16 Sep

Thu 17 Sep

Thu 17 Sep

Fri 18 Sep

Fri 18 Sep

Sat 19 Sep

Sat 19 Sep

Sun 20 Sep

Sun 20 Sep

Mon 21 Sep

Mon 21 Sep

7 day forecast for St Just

UK video forecast

South West England weather forecast

Tuesday 15 Sep - Saturday 19 Sep

Headline:

This Evening and Tonight:

Wednesday:

Outlook for Thursday to Saturday:

UK long range weather forecast

Sunday 20 Sep - Tuesday 29 Sep

Wednesday 30 Sep - Wednesday 14 Oct

Nearest forecasts