Amber warning of extreme heat affecting London & South East England: Bracknell Forest, Buckinghamshire, Greater London, Milton Keynes, Oxfordshire, Reading, Slough, Surrey, West Berkshire, Windsor and Maidenhead, Wokingham valid from 0800 Thu 13 Aug to 2259 Thu 13 Aug
Which is 3 min 25 sec shorter than yesterday (Noon)(Midnight)
Sunrise:05:48
Sunset:20:28
Waxing Crescent
1%
Illuminated
Humidity
Barometer
Current:
60%
Last Hour:
1%
High 00:00:
67%
Low 01:06:
49%
Record High:
100%
22-Nov-2011
Record Low:
0%
5-Dec-2020
Current:
1019.3hPa
Last Hour:
Steady
High 00:00:
1021.3 hPa
Low 16:04:
1019.3 hPa
Record High:
1049.5hPa
20-Jan-2020
Record Low:
953.8hPa
2-Nov-2023
Cooling Degree Days
Tide
Heat Index
Fire Risk4
Today:
4.3
Aug:
35.1
2026 to Date:
385.4
Heating Degree Days
2026 to Date:
617.4
1 hour, 51 minutes to low tide at 05:59 PM BST
Current:
28.0°C
High 11:17:00:
29.0°C
Yesterday:
27.8°C
Record:
42.0°C
24-Jun-2026
Current
Fire Weather Index:
Today: 25.7
Current UV Index
Current Solar Energy9
1.8
Sunburn in
62 Minutes
Highest:
12:57 3.5
563 W/m2 92% W/m2⇒ SISolar % ⇒ SI
High Today:
13:04 810 W/m2 Record: 2016 W/m2
Soil Conditions8
Irrigation Index5
Station All Time Records
Cloud Level
10 cm:
255.0 cb | 34°C°C
20 cm:
200.0 cb | 26°C
30 cm:
200.0 cb | 22°C
50 cm:
200.0 cb | 22°C
Growing conditions
at the depth of:
10 cm:
Soil moisture range is from
0-Wet to 200-Dry/Frozen
Updated at Midnight
Current ET:
6.60mm
7-Days Rain:
0.00mm
7-Days ET:
38.60mm
7-Day:
-38.60 mm
August:
-53.80 mm
2026:
29361.50 mm
Grass Temperature
Grass Temperature:
-67.8°C
Grass Maximum:
-100.0°C at 21:00
Grass Minimum:
100.0°C at 09:23
HIGHS:
LOWS:
35.4°C
24-Jun-2026
-24.9°C
3-Mar-2011
Daytime Records
31.1°C 24-Jun-2026
-5.1°C 04-Feb-2012
Nighttime Records
26.0°C 26-Jun-2026
-3.2°C 01-Mar-2018
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1 Rain season: Jan 1st to Dec 31st.
4 Updated at 12pm.
5 Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present).
7 Leaf Wetness is surface moisture on foliage. 0 being totally dry and 15 being totally saturated.
8 Soil moisture and temperatures are from sensors burried in the ground at the levels specified.
9 Solar Index represents either an absolute scale of solar energy (W/m²) using the station’s recorded maximum or a percentage of computed theoretical solar maximum using the station’s location and time of day. These indices differ most when the sun is low on the horizon. The current scale is shown, and will toggle if it or the icon is clicked.
10 Historical average to day 13 of August- for this station since 2012.
11 Historical average rain this season to day 13 of August- for this station since 2012.
12 The Feels Like temperature is derived from the Temperature, Humidity, Solar and Wind values recorded by the weather station.
WXSIM Weather Forecast -
Outlook This afternoon & Tonight
This afternoon
Clear High: 30°C
WXSIM forecast: Clear. Near record warmth. High 30°C. UV index up to 6. Wind south around 9 mph, gusting to 17 mph. Local station forecast:Increasing clouds with little temp change, precipitation possible within 24 to 48 hrs.
Tonight
Fog late Low: 18°C
WXSIM forecast: Fair in the evening, becoming fair to partly cloudy after midnight. Patchy light fog after midnight. Low 18°C. Wind west around 7 mph.
WXSIM Short Term Weather Forecast
Friday
Fog a.m.
Friday night
Mostly Cloudy
Saturday
Mostly Sunny
Saturday night
Partly Cloudy
Sunday
Mostly Sunny
Sunday night
Mostly Cloudy
Monday
Mostly Sunny
High: 28°C
Low: 17°C
High: 27°C
Low: 14°C
High: 25°C
Low: 15°C
High: 25°C
- Script by: Scott of BurnsvilleWeatherLIVE.com
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