As of 13:36 BST

Weather in Cemmaes Road / Glantwymyn

+13°

Cemmaes Road / Glantwymyn, Thursday, 8 October, 13:36

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

Pressure1023 mb

Wind2 mph SE

Humidity100%

Visibility6.2 mi

Dew point13°C

Detailed hourly forecast

The month ahead in Cemmaes Road / Glantwymyn: daytime temperatures averaging +12.4° and +6.8° overnight — that is 1.1° below the climate average for October. Rain is expected on 9 days (around 61 mm), against a normal of 8 days and 57 mm. The warmest day should be 14 October (+15.6°), the coolest 17 October (+1.2°).

+12.4°/+6.8°

Average day / night

−1.1°

Below average

9 / 8

Wet days / normal

61 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
8 October – 17 October	+12.5°	+13.9°	-1.4°
18 October – 27 October	+12.3°	+12.8°	-0.4°
28 October – 6 November	near average	+11.6°	—

October records over 66 years

+24.3°1 October 2011All-time high

-2.9°30 October 2018All-time low

Climate averages and records are calculated from the nearest reference point — Machynlleth (8.5 km away).

Fri, 09+10 ° /15 °

22.6

+15 °

Cemmaes Road / Glantwymyn, Friday, 9 October

Rain. High 15°C, low 10°C.

Pressure1009 mb

Wind17 mph W

Humidity96%

Visibility1.2 mi

Dew point13°C

Sat, 10+7 ° /10 °

5.7

+10 °

Cemmaes Road / Glantwymyn, Saturday, 10 October

Light rain. High 10°C, low 7°C.

Pressure1014 mb

Wind18 mph W

Humidity82%

Visibility4.9 mi

Dew point7°C

Sun, 11+6 ° /11 °

+11 °

Cemmaes Road / Glantwymyn, Sunday, 11 October

Overcast. High 11°C, low 6°C.

Pressure1014 mb

Wind7 mph SW

Humidity75%

Visibility6.2 mi

Dew point7°C

Mon, 12+7 ° /15 °

1.6

+15 °

Cemmaes Road / Glantwymyn, Monday, 12 October

Light rain. High 15°C, low 7°C.

Pressure1012 mb

Wind8 mph S

Humidity94%

Visibility6.2 mi

Dew point13°C

Tue, 13+9 ° /15 °

4.3

+15 °

Cemmaes Road / Glantwymyn, Tuesday, 13 October

Light rain. High 15°C, low 9°C.

Pressure1021 mb

Wind16 mph SW

Humidity96%

Visibility—

Dew point14°C

Wed, 14+9 ° /16 °

2.4

+16 °

Cemmaes Road / Glantwymyn, Wednesday, 14 October

Light rain. High 16°C, low 9°C.

Pressure1019 mb

Wind11 mph SW

Humidity73%

Visibility—

Dew point10°C

Thu, 15+5 ° /11 °

14.2

+11 °

Cemmaes Road / Glantwymyn, Thursday, 15 October

Rain. High 11°C, low 5°C.

Pressure1023 mb

Wind11 mph NW

Humidity69%

Visibility—

Dew point5°C

Fri, 16+4 ° /10 °

+10 °

Cemmaes Road / Glantwymyn, Friday, 16 October

Overcast. High 10°C, low 4°C.

Pressure1024 mb

Wind4 mph NW

Humidity65%

Visibility—

Dew point3°C

Sat, 17+1 ° /10 °

+10 °

Cemmaes Road / Glantwymyn, Saturday, 17 October

Clear sky. High 10°C, low 1°C.

Pressure1017 mb

Wind7 mph E

Humidity62%

Visibility—

Dew point2°C

Sun, 18+5 ° /11 °

0.4

+11 °

Cemmaes Road / Glantwymyn, Sunday, 18 October

Light rain. High 11°C, low 5°C.

Pressure1017 mb

Wind4 mph NE

Humidity79%

Visibility—

Dew point6°C

Mon, 19+8 ° /13 °

0.4

+13 °

Cemmaes Road / Glantwymyn, Monday, 19 October

Light rain. High 13°C, low 8°C.

Pressure1026 mb

Wind16 mph NE

Humidity82%

Visibility—

Dew point9°C

Tue, 20+8 ° /12 °

1.7

+12 °

Cemmaes Road / Glantwymyn, Tuesday, 20 October

Light rain. High 12°C, low 8°C.

Pressure1020 mb

Wind13 mph E

Humidity94%

Visibility—

Dew point9°C

Wed, 21+10 ° /12 °

1.2

+12 °

Cemmaes Road / Glantwymyn, Wednesday, 21 October

Light rain. High 12°C, low 10°C.

Pressure1017 mb

Wind6 mph E

Humidity89%

Visibility—

Dew point10°C

Thu, 22+8 ° /13 °

0.8

+13 °

Cemmaes Road / Glantwymyn, Thursday, 22 October

Light rain. High 13°C, low 8°C.

Pressure1023 mb

Wind3 mph NE

Humidity84%

Visibility—

Dew point10°C

Fri, 23+7 ° /13 °

+13 °

Cemmaes Road / Glantwymyn, Friday, 23 October

Overcast. High 13°C, low 7°C.

Pressure1031 mb

Wind3 mph N

Humidity76%

Visibility—

Dew point8°C

Days 17 onward are based on 60-year climate statistics

Sat, 24+8 ° /13 °

4.7

+13 °

Cemmaes Road / Glantwymyn, Saturday, 24 October

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

Average high13°C

Average low8°C

Average rainfall4.7 mm

Chance of rain47%

Warmest on record+17° (1995)

Coldest on record+2° (2002)

Sun, 25+8 ° /12 °

5.2

+12 °

Cemmaes Road / Glantwymyn, Sunday, 25 October

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

Average high12°C

Average low8°C

Average rainfall5.2 mm

Chance of rain58%

Warmest on record+16° (2013)

Coldest on record-1° (2010)

Mon, 26+8 ° /13 °

3.7

+13 °

Cemmaes Road / Glantwymyn, Monday, 26 October

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

Average high13°C

Average low8°C

Average rainfall3.7 mm

Chance of rain47%

Warmest on record+17° (2005)

Coldest on record+0° (1997)

Tue, 27+8 ° /13 °

4.8

+13 °

Cemmaes Road / Glantwymyn, Tuesday, 27 October

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

Average high13°C

Average low8°C

Average rainfall4.8 mm

Chance of rain53%

Warmest on record+19° (2005)

Coldest on record0° (2003)

Wed, 28+8 ° /12 °

4.8

+12 °

Cemmaes Road / Glantwymyn, Wednesday, 28 October

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

Average high12°C

Average low8°C

Average rainfall4.8 mm

Chance of rain58%

Warmest on record+17° (2014)

Coldest on record0° (2019)

Thu, 29+7 ° /12 °

4.1

+12 °

Cemmaes Road / Glantwymyn, Thursday, 29 October

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

Average high12°C

Average low7°C

Average rainfall4.1 mm

Chance of rain52%

Warmest on record+18° (2022)

Coldest on record-1° (2018)

Fri, 30+8 ° /12 °

4.4

+12 °

Cemmaes Road / Glantwymyn, Friday, 30 October

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

Average high12°C

Average low8°C

Average rainfall4.4 mm

Chance of rain53%

Warmest on record+17° (2015)

Coldest on record-3° (2018)

Sat, 31+8 ° /13 °

5.2

+13 °

Cemmaes Road / Glantwymyn, Saturday, 31 October

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

Average high13°C

Average low8°C

Average rainfall5.2 mm

Chance of rain62%

Warmest on record+20° (2014)

Coldest on record0° (1988)

Sun, 01+8 ° /12 °

5.2

+12 °

Cemmaes Road / Glantwymyn, Sunday, 1 November

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

Average high12°C

Average low8°C

Average rainfall5.2 mm

Chance of rain58%

Warmest on record+17° (2015)

Coldest on record0° (1988)

Mon, 02+7 ° /12 °

6.1

+12 °

Cemmaes Road / Glantwymyn, Monday, 2 November

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

Average high12°C

Average low7°C

Average rainfall6.1 mm

Chance of rain60%

Warmest on record+16° (2005)

Coldest on record+0° (1986)

Tue, 03+7 ° /11 °

4.5

+11 °

Cemmaes Road / Glantwymyn, Tuesday, 3 November

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

Average high11°C

Average low7°C

Average rainfall4.5 mm

Chance of rain65%

Warmest on record+16° (2011)

Coldest on record-2° (2006)

Wed, 04+7 ° /11 °

3.1

+11 °

Cemmaes Road / Glantwymyn, Wednesday, 4 November

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

Average high11°C

Average low7°C

Average rainfall3.1 mm

Chance of rain47%

Warmest on record+15° (2025)

Coldest on record-1° (1968)

Thu, 05+7 ° /11 °

3.9

+11 °

Cemmaes Road / Glantwymyn, Thursday, 5 November

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

Average high11°C

Average low7°C

Average rainfall3.9 mm

Chance of rain47%

Warmest on record+18° (2025)

Coldest on record-1° (1965)

Fri, 06+7 ° /11 °

3.3

+11 °

Cemmaes Road / Glantwymyn, Friday, 6 November

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

Average high11°C

Average low7°C

Average rainfall3.3 mm

Chance of rain50%

Warmest on record+16° (2025)

Coldest on record+1° (1960)

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 Cemmaes Road / Glantwymyn 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 Cemmaes Road / Glantwymyn 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.