As of 09:09 BST

Weather in Llanddewi Ystradenni

+8°

Llanddewi Ystradenni, Thursday, 8 October, 09:09

Overcast. Feels like 5°C. High 13°C, low 6°C.

Pressure1022 mb

Wind9 mph NW

Humidity86%

Visibility6.2 mi

Dew point5°C

Detailed hourly forecast

The month ahead in Llanddewi Ystradenni: daytime temperatures averaging +13° and +7.4° overnight — that is 0.3° above the climate average for October. Rain is expected on 6 days (around 37 mm), against a normal of 7 days and 46 mm. The warmest day should be 13 October (+16°), the coolest 17 October (+2.1°).

+13°/+7.4°

Average day / night

+0.3°

Above average

6 / 7

Wet days / normal

37 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
8 October – 17 October	+12.6°	+13.1°	-0.5°
18 October – 27 October	+13.6°	+11.9°	+1.7°
28 October – 6 November	near average	+10.7°	—

October records over 66 years

+23.7°1 October 2011All-time high

-2.7°30 October 2018All-time low

Climate averages and records are calculated from the nearest reference point — Llanidloes (21.7 km away).

Fri, 09+9 ° /14 °

5.3

+14 °

Llanddewi Ystradenni, Friday, 9 October

Light rain. High 14°C, low 9°C.

Pressure1009 mb

Wind23 mph W

Humidity95%

Visibility2.7 mi

Dew point13°C

Sat, 10+8 ° /10 °

0.1

+10 °

Llanddewi Ystradenni, Saturday, 10 October

Light rain. High 10°C, low 8°C.

Pressure1014 mb

Wind20 mph W

Humidity69%

Visibility6.2 mi

Dew point5°C

Sun, 11+7 ° /11 °

0.1

+11 °

Llanddewi Ystradenni, Sunday, 11 October

Light rain. High 11°C, low 7°C.

Pressure1015 mb

Wind7 mph NW

Humidity75%

Visibility6.2 mi

Dew point6°C

Mon, 12+7 ° /15 °

3.6

+15 °

Llanddewi Ystradenni, Monday, 12 October

Light rain. High 15°C, low 7°C.

Pressure1014 mb

Wind15 mph S

Humidity96%

Visibility—

Dew point13°C

Tue, 13+10 ° /16 °

+16 °

Llanddewi Ystradenni, Tuesday, 13 October

Light rain. High 16°C, low 10°C.

Pressure1019 mb

Wind18 mph SW

Humidity96%

Visibility—

Dew point15°C

Wed, 14+5 ° /15 °

+15 °

Llanddewi Ystradenni, Wednesday, 14 October

Overcast. High 15°C, low 5°C.

Pressure1022 mb

Wind11 mph SW

Humidity69%

Visibility—

Dew point8°C

Thu, 15+7 ° /11 °

13.7

+11 °

Llanddewi Ystradenni, Thursday, 15 October

Rain. High 11°C, low 7°C.

Pressure1015 mb

Wind18 mph N

Humidity94%

Visibility—

Dew point7°C

Fri, 16+3 ° /9 °

+9 °

Llanddewi Ystradenni, Friday, 16 October

Partly cloudy. High 9°C, low 3°C.

Pressure1024 mb

Wind14 mph N

Humidity71%

Visibility—

Dew point3°C

Sat, 17+2 ° /11 °

+11 °

Llanddewi Ystradenni, Saturday, 17 October

Partly cloudy. High 11°C, low 2°C.

Pressure1021 mb

Wind6 mph N

Humidity74%

Visibility—

Dew point5°C

Sun, 18+7 ° /9 °

9.1

+9 °

Llanddewi Ystradenni, Sunday, 18 October

Light rain. High 9°C, low 7°C.

Pressure1017 mb

Wind4 mph SE

Humidity98%

Visibility—

Dew point8°C

Mon, 19+10 ° /14 °

0.3

+14 °

Llanddewi Ystradenni, Monday, 19 October

Light rain. High 14°C, low 10°C.

Pressure1017 mb

Wind6 mph SW

Humidity80%

Visibility—

Dew point10°C

Tue, 20+11 ° /15 °

0.6

+15 °

Llanddewi Ystradenni, Tuesday, 20 October

Light rain. High 15°C, low 11°C.

Pressure1019 mb

Wind15 mph SE

Humidity94%

Visibility—

Dew point12°C

Wed, 21+10 ° /16 °

+16 °

Llanddewi Ystradenni, Wednesday, 21 October

Overcast. High 16°C, low 10°C.

Pressure1016 mb

Wind16 mph SE

Humidity70%

Visibility—

Dew point9°C

Thu, 22+10 ° /15 °

+15 °

Llanddewi Ystradenni, Thursday, 22 October

Overcast. High 15°C, low 10°C.

Pressure1014 mb

Wind16 mph E

Humidity75%

Visibility—

Dew point10°C

Fri, 23+7 ° /13 °

+13 °

Llanddewi Ystradenni, Friday, 23 October

Partly cloudy. High 13°C, low 7°C.

Pressure1018 mb

Wind16 mph E

Humidity65%

Visibility—

Dew point6°C

Days 17 onward are based on 60-year climate statistics

Sat, 24+7 ° /12 °

3.4

+12 °

Llanddewi Ystradenni, Saturday, 24 October

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low7°C

Average rainfall3.4 mm

Chance of rain43%

Warmest on record+16° (1995)

Coldest on record-2° (1964)

Sun, 25+7 ° /12 °

3.9

+12 °

Llanddewi Ystradenni, Sunday, 25 October

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low7°C

Average rainfall3.9 mm

Chance of rain52%

Warmest on record+16° (2013)

Coldest on record-1° (1997)

Mon, 26+7 ° /12 °

2.9

+12 °

Llanddewi Ystradenni, Monday, 26 October

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low7°C

Average rainfall2.9 mm

Chance of rain43%

Warmest on record+17° (2005)

Coldest on record-1° (2003)

Tue, 27+7 ° /12 °

3.9

+12 °

Llanddewi Ystradenni, Tuesday, 27 October

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low7°C

Average rainfall3.9 mm

Chance of rain48%

Warmest on record+18° (2005)

Coldest on record-1° (1962)

Wed, 28+6 ° /11 °

3.4

+11 °

Llanddewi Ystradenni, Wednesday, 28 October

Climate average for this date — the mean of the last 60 years.

Average high11°C

Average low6°C

Average rainfall3.4 mm

Chance of rain55%

Warmest on record+17° (2014)

Coldest on record-1° (2008)

Thu, 29+6 ° /11 °

3.3

+11 °

Llanddewi Ystradenni, Thursday, 29 October

Climate average for this date — the mean of the last 60 years.

Average high11°C

Average low6°C

Average rainfall3.3 mm

Chance of rain47%

Warmest on record+16° (2022)

Coldest on record-2° (2008)

Fri, 30+6 ° /11 °

3.5

+11 °

Llanddewi Ystradenni, Friday, 30 October

Climate average for this date — the mean of the last 60 years.

Average high11°C

Average low6°C

Average rainfall3.5 mm

Chance of rain48%

Warmest on record+16° (2015)

Coldest on record-3° (2018)

Sat, 31+7 ° /12 °

+12 °

Llanddewi Ystradenni, Saturday, 31 October

Climate average for this date — the mean of the last 60 years.

Average high12°C

Average low7°C

Average rainfall4 mm

Chance of rain57%

Warmest on record+19° (2014)

Coldest on record-1° (1988)

Sun, 01+7 ° /11 °

3.5

+11 °

Llanddewi Ystradenni, Sunday, 1 November

Climate average for this date — the mean of the last 60 years.

Average high11°C

Average low7°C

Average rainfall3.5 mm

Chance of rain58%

Warmest on record+16° (2014)

Coldest on record-1° (1988)

Mon, 02+6 ° /11 °

+11 °

Llanddewi Ystradenni, Monday, 2 November

Climate average for this date — the mean of the last 60 years.

Average high11°C

Average low6°C

Average rainfall5 mm

Chance of rain62%

Warmest on record+16° (2005)

Coldest on record0° (1985)

Tue, 03+6 ° /10 °

3.2

+10 °

Llanddewi Ystradenni, Tuesday, 3 November

Climate average for this date — the mean of the last 60 years.

Average high10°C

Average low6°C

Average rainfall3.2 mm

Chance of rain63%

Warmest on record+15° (1979)

Coldest on record-2° (2006)

Wed, 04+5 ° /10 °

2.4

+10 °

Llanddewi Ystradenni, Wednesday, 4 November

Climate average for this date — the mean of the last 60 years.

Average high10°C

Average low5°C

Average rainfall2.4 mm

Chance of rain40%

Warmest on record+14° (1971)

Coldest on record-2° (1967)

Thu, 05+5 ° /10 °

3.2

+10 °

Llanddewi Ystradenni, Thursday, 5 November

Climate average for this date — the mean of the last 60 years.

Average high10°C

Average low5°C

Average rainfall3.2 mm

Chance of rain43%

Warmest on record+15° (2025)

Coldest on record-2° (1965)

Fri, 06+5 ° /10 °

2.5

+10 °

Llanddewi Ystradenni, Friday, 6 November

Climate average for this date — the mean of the last 60 years.

Average high10°C

Average low5°C

Average rainfall2.5 mm

Chance of rain47%

Warmest on record+15° (2015)

Coldest on record-1° (1995)

Questions about the month ahead

How accurate is a month-long forecast?

The first 16 days come from weather models — highly reliable for the first 3–5 days, gradually less so after that. Days 17 to 30 for Llanddewi Ystradenni are built from climate averages over the last 60 years, so they show typical weather for those dates rather than a specific forecast.

What does "above average" mean?

We compare the forecast with the climate average for exactly the same calendar days, calculated from 60 years of observations. The difference shows how the coming month compares with a typical one.

Where do the 66-year records come from?

These are real historical extremes recorded in Llanddewi Ystradenni since 1960: the highest and lowest temperature for each calendar date, with the year it happened.

How often is the 30-day forecast updated?

The forecast portion refreshes every hour. The climate portion is based on long-term data and stays stable.