As of 16:54 BST

Weather in Gwernafon

+11°

Gwernafon, Wednesday, 7 October, 16:54

Mainly clear. Feels like 10°C. High 12°C, low 8°C.

Pressure1016 mb

Wind12 mph NW

Humidity74%

Visibility6.2 mi

Dew point7°C

Detailed hourly forecast

The month ahead in Gwernafon: daytime temperatures averaging +11.6° and +5.2° overnight — that is 1.2° below the climate average for October. Rain is expected on 11 days (around 69 mm), against a normal of 7 days and 47 mm. The warmest day should be 12 October (+15.1°), the coolest 18 October (+2.1°).

+11.6°/+5.2°

Average day / night

−1.2°

Below average

11 / 7

Wet days / normal

69 mm

Rainfall this month

Ten-day blocks against the climate average

Period	Forecast (day)	Average	Difference
7 October – 16 October	+12.3°	+13.3°	-1°
17 October – 26 October	+10.5°	+12°	-1.5°
27 October – 5 November	near average	+10.9°	—

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 (6.8 km away).

Thu, 08+7 ° /14 °

1.5

+14 °

Gwernafon, Thursday, 8 October

Light rain. High 14°C, low 7°C.

Pressure1024 mb

Wind11 mph NW

Humidity71%

Visibility6.2 mi

Dew point5°C

Fri, 09+8 ° /13 °

17.8

+13 °

Gwernafon, Friday, 9 October

Rain. High 13°C, low 8°C.

Pressure1010 mb

Wind21 mph W

Humidity98%

Visibility1.3 mi

Dew point12°C

Sat, 10+6 ° /9 °

4.9

+9 °

Gwernafon, Saturday, 10 October

Light rain. High 9°C, low 6°C.

Pressure1012 mb

Wind20 mph W

Humidity88%

Visibility6.2 mi

Dew point7°C

Sun, 11+5 ° /9 °

0.9

+9 °

Gwernafon, Sunday, 11 October

Light rain. High 9°C, low 5°C.

Pressure1014 mb

Wind8 mph W

Humidity81%

Visibility6.2 mi

Dew point6°C

Mon, 12+5 ° /15 °

+15 °

Gwernafon, Monday, 12 October

Light rain. High 15°C, low 5°C.

Pressure1010 mb

Wind16 mph SW

Humidity96%

Visibility—

Dew point13°C

Tue, 13+7 ° /14 °

+14 °

Gwernafon, Tuesday, 13 October

Rain. High 14°C, low 7°C.

Pressure1021 mb

Wind17 mph SW

Humidity77%

Visibility—

Dew point9°C

Wed, 14+7 ° /14 °

+14 °

Gwernafon, Wednesday, 14 October

Partly cloudy. High 14°C, low 7°C.

Pressure1029 mb

Wind11 mph SW

Humidity68%

Visibility—

Dew point7°C

Thu, 15+4 ° /12 °

1.6

+12 °

Gwernafon, Thursday, 15 October

Light rain. High 12°C, low 4°C.

Pressure1017 mb

Wind12 mph SW

Humidity93%

Visibility—

Dew point11°C

Fri, 16+3 ° /10 °

+10 °

Gwernafon, Friday, 16 October

Overcast. High 10°C, low 3°C.

Pressure1025 mb

Wind5 mph S

Humidity66%

Visibility—

Dew point3°C

Sat, 17+3 ° /12 °

0.3

+12 °

Gwernafon, Saturday, 17 October

Light rain. High 12°C, low 3°C.

Pressure1011 mb

Wind12 mph SW

Humidity71%

Visibility—

Dew point6°C

Sun, 18+2 ° /12 °

0.9

+12 °

Gwernafon, Sunday, 18 October

Light rain. High 12°C, low 2°C.

Pressure1012 mb

Wind15 mph S

Humidity58%

Visibility—

Dew point1°C

Mon, 19+6 ° /12 °

11.6

+12 °

Gwernafon, Monday, 19 October

Rain. High 12°C, low 6°C.

Pressure997 mb

Wind19 mph SW

Humidity83%

Visibility—

Dew point5°C

Tue, 20+5 ° /8 °

4.4

+8 °

Gwernafon, Tuesday, 20 October

Light rain. High 8°C, low 5°C.

Pressure996 mb

Wind15 mph SW

Humidity88%

Visibility—

Dew point5°C

Wed, 21+3 ° /8 °

7.9

+8 °

Gwernafon, Wednesday, 21 October

Rain. High 8°C, low 3°C.

Pressure1006 mb

Wind14 mph W

Humidity72%

Visibility—

Dew point3°C

Thu, 22+5 ° /10 °

8.6

+10 °

Gwernafon, Thursday, 22 October

Rain. High 10°C, low 5°C.

Pressure1006 mb

Wind13 mph SE

Humidity76%

Visibility—

Dew point5°C

Days 17 onward are based on 60-year climate statistics

Fri, 23+7 ° /12 °

2.5

+12 °

Gwernafon, Friday, 23 October

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

Average high12°C

Average low7°C

Average rainfall2.5 mm

Chance of rain43%

Warmest on record+17° (1971)

Coldest on record-1° (1993)

Sat, 24+7 ° /12 °

3.4

+12 °

Gwernafon, 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 °

Gwernafon, 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 °

Gwernafon, 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 °

Gwernafon, 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 °

Gwernafon, 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 °

Gwernafon, 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 °

Gwernafon, 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 °

Gwernafon, 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 °

Gwernafon, 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 °

Gwernafon, 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 °

Gwernafon, 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 °

Gwernafon, 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 °

Gwernafon, 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)

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 Gwernafon 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 Gwernafon 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.