As of 22:59 BST

Weather in Thornhill

+16°

Thornhill, Saturday, 8 August, 22:59

Overcast. Feels like 16°C. High 21°C, low 12°C.

Pressure1014 mb

Wind5 mph S

Humidity83%

Visibility3566 ft

Dew point13°C

Detailed hourly forecast

Sun, 09+12 ° /17 °

+17 °

Thornhill, Sunday, 9 August

Rain. High 17°C, low 12°C.

Pressure1011 mb

Wind8 mph SW

Humidity89%

Visibility6.2 mi

Dew point12°C

Mon, 10+10 ° /19 °

+19 °

Thornhill, Monday, 10 August

Partly cloudy. High 19°C, low 10°C.

Pressure1021 mb

Wind7 mph W

Humidity61%

Visibility6.2 mi

Dew point9°C

Tue, 11+10 ° /21 °

+21 °

Thornhill, Tuesday, 11 August

Overcast. High 21°C, low 10°C.

Pressure1024 mb

Wind6 mph S

Humidity62%

Visibility6.2 mi

Dew point11°C

Wed, 12+14 ° /22 °

+22 °

Thornhill, Wednesday, 12 August

Overcast. High 22°C, low 14°C.

Pressure1022 mb

Wind11 mph S

Humidity60%

Visibility6.2 mi

Dew point12°C

Thu, 13+14 ° /25 °

+25 °

Thornhill, Thursday, 13 August

Overcast. High 25°C, low 14°C.

Pressure1019 mb

Wind6 mph S

Humidity55%

Visibility—

Dew point13°C

Fri, 14+16 ° /23 °

1.1

+23 °

Thornhill, Friday, 14 August

Light rain. High 23°C, low 16°C.

Pressure1016 mb

Wind8 mph W

Humidity80%

Visibility—

Dew point17°C

Sat, 15+13 ° /19 °

1.6

+19 °

Thornhill, Saturday, 15 August

Light rain. High 19°C, low 13°C.

Pressure1018 mb

Wind6 mph N

Humidity84%

Visibility—

Dew point15°C

Sun, 16+12 ° /19 °

3.8

+19 °

Thornhill, Sunday, 16 August

Light rain. High 19°C, low 12°C.

Pressure1018 mb

Wind7 mph SW

Humidity66%

Visibility—

Dew point12°C

Mon, 17+10 ° /15 °

5.4

+15 °

Thornhill, Monday, 17 August

Light rain. High 15°C, low 10°C.

Pressure1008 mb

Wind13 mph W

Humidity99%

Visibility—

Dew point12°C

Tue, 18+11 ° /16 °

0.7

+16 °

Thornhill, Tuesday, 18 August

Light rain. High 16°C, low 11°C.

Pressure1010 mb

Wind17 mph W

Humidity65%

Visibility—

Dew point9°C

Wed, 19+12 ° /17 °

1.7

+17 °

Thornhill, Wednesday, 19 August

Light rain. High 17°C, low 12°C.

Pressure1010 mb

Wind18 mph W

Humidity69%

Visibility—

Dew point10°C

Thu, 20+10 ° /18 °

0.2

+18 °

Thornhill, Thursday, 20 August

Light rain. High 18°C, low 10°C.

Pressure1011 mb

Wind13 mph NW

Humidity60%

Visibility—

Dew point9°C

Fri, 21+8 ° /15 °

0.8

+15 °

Thornhill, Friday, 21 August

Light rain. High 15°C, low 8°C.

Pressure1016 mb

Wind5 mph N

Humidity78%

Visibility—

Dew point10°C

Sat, 22+9 ° /18 °

0.8

+18 °

Thornhill, Saturday, 22 August

Light rain. High 18°C, low 9°C.

Pressure1022 mb

Wind6 mph SE

Humidity64%

Visibility—

Dew point9°C

Sun, 23+8 ° /17 °

0.1

+17 °

Thornhill, Sunday, 23 August

Light rain. High 17°C, low 8°C.

Pressure1018 mb

Wind13 mph SW

Humidity77%

Visibility—

Dew point11°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 Thornhill 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 Thornhill 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.