Yellow warning of thunderstorm affecting London & South East England: Buckinghamshire, Greater London, Milton Keynes, Oxfordshire valid from 0400 Thu 27 Aug to 2100 Thu 27 Aug
Yellow warning of thunderstorm affecting London & South East England: Bracknell Forest, Brighton and Hove, Buckinghamshire, East Sussex, Greater London, Hampshire, Kent, Medway, Oxfordshire, Portsmouth, Reading, Slough, Surrey, West Berkshire, West Sussex, Windsor and Maidenhead, Wokingham valid from 0100 Thu 27 Aug to 0700 Thu 27 Aug
Which is 3 min 40 sec shorter than yesterday (Noon)(Midnight)
Sunrise:06:10
Sunset:20:00
Waxing Gibbous
99%
Illuminated
Humidity
Barometer
Current:
84%
Last Hour:
0%
High 05:13:
85%
Low 02:56:
74%
Record High:
100%
22-Nov-2011
Record Low:
0%
5-Dec-2020
Current:
1007.0hPa
Last Hour:
Steady
High 00:00:
1008.9 hPa
Low 06:06:
1006.4 hPa
Record High:
1049.5hPa
20-Jan-2020
Record Low:
953.8hPa
2-Nov-2023
Cooling Degree Days
Tide
Heat Index
Fire Risk4
Today:
1.5
Aug:
69.1
2026 to Date:
457.0
Heating Degree Days
2026 to Date:
617.4
4 hours, 34 minutes to high tide at 11:58 AM BST
Current:
20.4°C
High 03:15:00:
21.7°C
Yesterday:
26.2°C
Record:
42.0°C
24-Jun-2026
Current
Fire Weather Index:
Today: 20.3
Current UV Index
Current Solar Energy9
0.0
Sunburn in
720 Minutes
Highest:
00:00 0.0
12 W/m2 10% W/m2⇒ SISolar % ⇒ SI
High Today:
07:08 14 W/m2 Record: 2016 W/m2
Soil Conditions8
Irrigation Index5
Station All Time Records
Cloud Level
10 cm:
200.0 cb | 21°C°C
20 cm:
200.0 cb | 22°C
30 cm:
200.0 cb | 21°C
50 cm:
138.0 cb | 21°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:
1.40mm
7-Days Rain:
1.20mm
7-Days ET:
32.60mm
7-Day:
-31.40 mm
August:
-109.40 mm
2026:
29296.70 mm
Grass Temperature
Grass Temperature:
-67.8°C
Grass Maximum:
-100.0°C at 13:00
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 27 of August- for this station since 2012.
11 Historical average rain this season to day 27 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 Rest of tonight & Thursday
Rest of tonight
Thunder storm Low: 19°C
WXSIM forecast: Dense overcast. A chance of rain. Scattered thundershowers possible. Warm. Low 19°C. Wind east-southeast around 7 mph. Chance of precipitation 30 percent. Precipitation mostly less than 2 mm. Local station forecast:Mostly cloudy with little temp change, precipitation possible within 6 to 12 hrs, windy.
Thursday
Chance of rain High: 22°C
WXSIM forecast: Dense overcast in the morning, becoming mostly cloudy to cloudy in the afternoon. Patchy light fog in the morning. A chance of rain in the morning, then a slight chance of rain in the afternoon. High 22°C. UV index up to 3. Wind south around 9 mph, gusting to 18 mph, in the morning, becoming southwest in the afternoon. Chance of precipitation 50 percent. Precipitation mostly around 2 mm.
WXSIM Short Term Weather Forecast
Thursday night
Mostly Cloudy
Friday
Fog a.m.
Friday night
Cloudy
Saturday
Chance of rain
Saturday night
Partly Cloudy
Sunday
Partly Cloudy
Sunday night
Rain likely
Low: 14°C
High: 19°C
Low: 14°C
High: 19°C
Low: 14°C
High: 18°C
Low: 13°C
- Script by: Scott of BurnsvilleWeatherLIVE.com
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