As of 17:04 BST

Weather in Onllwyn

+23°Weather now

Onllwyn, Saturday, 8 August, 17:04

Overcast. Feels like 22°C. High 24°C, low 9°C.

Pressure1017 mb
Wind6 mph SW
Humidity46%
Visibility6.2 mi
Dew point10°C
Sun, 09+11 ° /24 °0Overcast
+24 °Overcast

Onllwyn, Sunday, 9 August

Overcast. High 24°C, low 11°C.

Pressure1015 mb
Wind8 mph W
Humidity34%
Visibility6.2 mi
Dew point7°C
Mon, 10+12 ° /25 °0Overcast
+25 °Overcast

Onllwyn, Monday, 10 August

Overcast. High 25°C, low 12°C.

Pressure1021 mb
Wind8 mph NW
Humidity33%
Visibility6.2 mi
Dew point5°C
Tue, 11+12 ° /28 °0Clear sky
+28 °Clear sky

Onllwyn, Tuesday, 11 August

Clear sky. High 28°C, low 12°C.

Pressure1024 mb
Wind12 mph SE
Humidity39%
Visibility6.2 mi
Dew point9°C
Wed, 12+13 ° /32 °0Overcast
+32 °Overcast

Onllwyn, Wednesday, 12 August

Overcast. High 32°C, low 13°C.

Pressure1022 mb
Wind12 mph SE
Humidity26%
Visibility6.2 mi
Dew point6°C
Thu, 13+17 ° /31 °0Clear sky
+31 °Clear sky

Onllwyn, Thursday, 13 August

Clear sky. High 31°C, low 17°C.

Pressure1017 mb
Wind12 mph NW
Humidity17%
Visibility—
Dew point2°C
Fri, 14+15 ° /26 °0.2Light rain
+26 °Light rain

Onllwyn, Friday, 14 August

Light rain. High 26°C, low 15°C.

Pressure1017 mb
Wind14 mph W
Humidity53%
Visibility—
Dew point14°C
Sat, 15+13 ° /22 °0.5Light rain
+22 °Light rain

Onllwyn, Saturday, 15 August

Light rain. High 22°C, low 13°C.

Pressure1017 mb
Wind12 mph NW
Humidity60%
Visibility—
Dew point13°C
Sun, 16+13 ° /22 °0.3Light rain
+22 °Light rain

Onllwyn, Sunday, 16 August

Light rain. High 22°C, low 13°C.

Pressure1014 mb
Wind14 mph W
Humidity46%
Visibility—
Dew point9°C
Mon, 17+11 ° /19 °0.5Light rain
+19 °Light rain

Onllwyn, Monday, 17 August

Light rain. High 19°C, low 11°C.

Pressure1014 mb
Wind16 mph NW
Humidity64%
Visibility—
Dew point11°C
Tue, 18+10 ° /17 °0.4Light rain
+17 °Light rain

Onllwyn, Tuesday, 18 August

Light rain. High 17°C, low 10°C.

Pressure1012 mb
Wind14 mph NW
Humidity72%
Visibility—
Dew point10°C
Wed, 19+10 ° /22 °0Overcast
+22 °Overcast

Onllwyn, Wednesday, 19 August

Overcast. High 22°C, low 10°C.

Pressure1014 mb
Wind12 mph W
Humidity46%
Visibility—
Dew point7°C
Thu, 20+11 ° /19 °1.7Light rain
+19 °Light rain

Onllwyn, Thursday, 20 August

Light rain. High 19°C, low 11°C.

Pressure1007 mb
Wind16 mph NW
Humidity80%
Visibility—
Dew point13°C
Fri, 21+9 ° /18 °0.2Light rain
+18 °Light rain

Onllwyn, Friday, 21 August

Light rain. High 18°C, low 9°C.

Pressure1015 mb
Wind15 mph NW
Humidity48%
Visibility—
Dew point5°C
Sat, 22+11 ° /18 °0.7Light rain
+18 °Light rain

Onllwyn, Saturday, 22 August

Light rain. High 18°C, low 11°C.

Pressure1015 mb
Wind23 mph W
Humidity52%
Visibility—
Dew point7°C
Sun, 23+11 ° /16 °0Overcast
+16 °Overcast

Onllwyn, Sunday, 23 August

Overcast. High 16°C, low 11°C.

Pressure1023 mb
Wind17 mph NW
Humidity51%
Visibility—
Dew point6°C

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 Onllwyn 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 Onllwyn 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.