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Now · 11:59 AM

Chalfont St Giles Weather & Hourly Forecast

United Kingdom · England · HP8 4BX

Overcast
22°C
Overcast
Feels like: 19°C
💧 Humidity 55% 🌡 Pressure 1024 hPa 💨 Wind 16 km/h 👁 Visibility 38.9 km Clouds 100% ☀️ UV index 2.3 · Low 🌅 Sunrise 6:48 AM 🌇 Sunset 7:00 PM

Hourly Forecast for Chalfont St Giles

Today
Overcast · 12:00 PM Overcast
22° 💧 0.0 mm 💨 16 km/h H 55%1024 hPa
Overcast · 3:00 PM Overcast
22° 💧 None 💨 18 km/h H 51%1023 hPa
Mostly sunny · 6:00 PM Mostly sunny
20° 💧 None 💨 17 km/h H 57%1024 hPa
Partly cloudy night · 9:00 PM Partly cloudy night
15° 💧 0.0 mm 💨 12 km/h H 61%1026 hPa
Tomorrow
Overcast night · 12:00 AM Overcast night
13° 💧 None 💨 9 km/h H 75%1027 hPa
Overcast night · 3:00 AM Overcast night
12° 💧 None 💨 7 km/h H 86%1026 hPa
Overcast night · 6:00 AM Overcast night
11° 💧 None 💨 6 km/h H 90%1026 hPa
Mostly cloudy · 9:00 AM Mostly cloudy
14° 💧 None 💨 7 km/h H 72%1027 hPa
Overcast · 12:00 PM Overcast
19° 💧 None 💨 12 km/h H 60%1025 hPa
Overcast · 3:00 PM Overcast
22° 💧 None 💨 11 km/h H 47%1024 hPa
Mostly cloudy · 6:00 PM Mostly cloudy
20° 💧 None 💨 12 km/h H 55%1022 hPa
Mostly clear night · 9:00 PM Mostly clear night
16° 💧 None 💨 10 km/h H 86%1023 hPa
Friday
Mostly clear night · 12:00 AM Mostly clear night
14° 💧 None 💨 6 km/h H 99%1022 hPa
Mostly cloudy night · 3:00 AM Mostly cloudy night
13° 💧 None 💨 4 km/h H 100%1021 hPa
Fog at night · 6:00 AM Fog at night
13° 💧 None 💨 1 km/h H 100%1021 hPa
Fog · 9:00 AM Fog
14° 💧 0.0 mm 💨 1 km/h H 99%1020 hPa

In Chalfont St Giles and, more broadly, across South East: The rest of the day will see clear skies with mild temperatures ranging from 15 to 21 degrees Celsius. Light southwest winds will prevail, generally blowing around 6 mph, with occasional gusts up to 13 mph. Conditions will be calm, making for a pleasant afternoon. No precipitation is expected, so it should remain dry and comfortable throughout the rest of the day.

15-Day Weather Outlook for Chalfont St Giles

TomorrowTomorrow Overcast Overcast 22°/11° 💧 None 💨 13 km/h
Friday, Sep 25Fri Sep 25 Mostly sunny Mostly sunny 26°/13° 💧 None 💨 15 km/h
Saturday, Sep 26Sat Sep 26 Overcast Overcast 19°/12° 💧 0.1 mm 💨 18 km/h
Sunday, Sep 27Sun Sep 27 Overcast Overcast 20°/10° 💧 None 💨 21 km/h
Monday, Sep 28Mon Sep 28 Overcast Overcast 21°/11° 💧 None 💨 13 km/h
Tuesday, Sep 29Tue Sep 29 Moderate rain Moderate rain 20°/16° 💧 9.0 mm 💨 28 km/h
Wednesday, Sep 30Wed Sep 30 Overcast Overcast 20°/14° 💧 0.2 mm 💨 20 km/h
Thursday, Oct 1Thu Oct 1 Mostly sunny Mostly sunny 16°/10° 💧 0.1 mm 💨 17 km/h
Friday, Oct 2Fri Oct 2 Partly cloudy Partly cloudy 16°/ 💧 None 💨 13 km/h
Saturday, Oct 3Sat Oct 3 Overcast Overcast 18°/10° 💧 0.1 mm 💨 19 km/h
Sunday, Oct 4Sun Oct 4 Overcast Overcast 19°/12° 💧 None 💨 24 km/h
Monday, Oct 5Mon Oct 5 Moderate rain Moderate rain 16°/15° 💧 16 mm 💨 26 km/h
Tuesday, Oct 6Tue Oct 6 Light rain Light rain 14°/ 💧 1.5 mm 💨 13 km/h
Wednesday, Oct 7Wed Oct 7 Mostly sunny Mostly sunny 15°/ 💧 0.3 mm 💨 12 km/h
Thursday, Oct 8Thu Oct 8 Sunny Sunny / 💧 None 💨 6 km/h

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Chalfont St Giles

Vertical axis: °C · Color based on temperature
Overcast at 12:00 PM
22° Today 12:00 PM
Mostly sunny at 1:00 PM
21° 1:00 PM
Partly cloudy at 2:00 PM
22° 2:00 PM
Overcast at 3:00 PM
22° 3:00 PM
Mostly sunny at 4:00 PM
21° Today 4:00 PM
Partly cloudy at 5:00 PM
21° 5:00 PM
Mostly sunny at 6:00 PM
20° 6:00 PM
Mostly cloudy at 7:00 PM
18° 7:00 PM
Clear night at 8:00 PM
16° Today 8:00 PM
Partly cloudy night at 9:00 PM
15° 9:00 PM
Mostly cloudy night at 10:00 PM
14° 10:00 PM
Overcast night at 11:00 PM
13° 11:00 PM
Overcast night at 12:00 AM
13° Tomorrow 12:00 AM
Overcast night at 1:00 AM
12° 1:00 AM
Overcast night at 2:00 AM
12° 2:00 AM
Overcast night at 3:00 AM
12° 3:00 AM
Mostly cloudy night at 4:00 AM
12° Tomorrow 4:00 AM
Overcast night at 5:00 AM
12° 5:00 AM
Overcast night at 6:00 AM
11° 6:00 AM
Partly cloudy at 7:00 AM
11° 7:00 AM
Overcast at 8:00 AM
12° Tomorrow 8:00 AM
Mostly cloudy at 9:00 AM
14° 9:00 AM
Mostly sunny at 10:00 AM
16° 10:00 AM
Mostly cloudy at 11:00 AM
17° 11:00 AM
Overcast at 12:00 PM
19° Tomorrow 12:00 PM
Overcast at 1:00 PM
20° 1:00 PM
Mostly cloudy at 2:00 PM
21° 2:00 PM
Overcast at 3:00 PM
22° 3:00 PM
Mostly cloudy at 4:00 PM
21° Tomorrow 4:00 PM
Mostly cloudy at 5:00 PM
21° 5:00 PM
Mostly cloudy at 6:00 PM
20° 6:00 PM
Mostly cloudy night at 7:00 PM
18° 7:00 PM
Mostly cloudy night at 8:00 PM
17° Tomorrow 8:00 PM
Mostly clear night at 9:00 PM
16° 9:00 PM
Clear night at 10:00 PM
15° 10:00 PM
Clear night at 11:00 PM
14° 11:00 PM
Mostly clear night at 12:00 AM
14° Friday 12:00 AM
Mostly clear night at 1:00 AM
13° 1:00 AM
Mostly cloudy night at 2:00 AM
13° 2:00 AM
Mostly cloudy night at 3:00 AM
13° 3:00 AM
Fog at night at 4:00 AM
13° Friday 4:00 AM
Fog at night at 5:00 AM
13° 5:00 AM
Fog at night at 6:00 AM
13° 6:00 AM
Fog at 7:00 AM
13° 7:00 AM
Fog at 8:00 AM
13° Friday 8:00 AM
Fog at 9:00 AM
14° 9:00 AM
Mostly cloudy at 10:00 AM
16° 10:00 AM
Sunny at 11:00 AM
18° 11:00 AM
Sunny at 12:00 PM
21° Friday 12:00 PM
Sunny at 1:00 PM
22° 1:00 PM
Sunny at 2:00 PM
24° 2:00 PM
Mostly sunny at 3:00 PM
25° 3:00 PM
Partly cloudy at 4:00 PM
26° Friday 4:00 PM
Mostly sunny at 5:00 PM
25° 5:00 PM
Mostly sunny at 6:00 PM
24° 6:00 PM
Mostly cloudy night at 7:00 PM
22° 7:00 PM
Mostly cloudy night at 8:00 PM
20° Friday 8:00 PM
Partly cloudy night at 9:00 PM
18° 9:00 PM
Mostly cloudy night at 10:00 PM
17° 10:00 PM
Overcast night at 11:00 PM
17° 11:00 PM
Overcast night at 12:00 AM
16° Saturday 12:00 AM
Overcast night at 1:00 AM
15° 1:00 AM
Overcast night at 4:00 AM
14° 4:00 AM
Partly cloudy at 7:00 AM
12° 7:00 AM
Mostly sunny at 10:00 AM
14° Saturday 10:00 AM
Partly cloudy at 1:00 PM
18° 1:00 PM
Mostly sunny at 4:00 PM
19° 4:00 PM
Clear night at 7:00 PM
16° 7:00 PM
Clear night at 10:00 PM
13° Saturday 10:00 PM
Clear night at 1:00 AM
11° 1:00 AM
Mostly clear night at 4:00 AM
10° 4:00 AM
Overcast at 7:00 AM
10° 7:00 AM
Sunny at 10:00 AM
16° Sunday 10:00 AM
Mostly sunny at 1:00 PM
20° 1:00 PM
Overcast at 4:00 PM
20° 4:00 PM
Mostly cloudy night at 7:00 PM
18° 7:00 PM
Overcast night at 10:00 PM
16° Sunday 10:00 PM
Overcast night at 1:00 AM
14° 1:00 AM
Overcast night at 4:00 AM
12° 4:00 AM
Mostly cloudy at 7:00 AM
11° 7:00 AM
Sunny at 10:00 AM
15° Monday 10:00 AM
Sunny at 1:00 PM
19° 1:00 PM
Mostly cloudy at 4:00 PM
21° 4:00 PM
Overcast night at 7:00 PM
18° 7:00 PM
Overcast night at 10:00 PM
16° Monday 10:00 PM
Overcast night at 1:00 AM
16° 1:00 AM
Moderate rain at 7:00 AM
17° 7:00 AM
Overcast at 1:00 PM
20° 1:00 PM
Clear night at 7:00 PM
17° Tuesday 7:00 PM
Mostly clear night at 1:00 AM
15° 1:00 AM
Mostly sunny at 7:00 AM
14° 7:00 AM
Mostly sunny at 1:00 PM
20° 1:00 PM
Overcast night at 7:00 PM
17° Wednesday 7:00 PM
Clear night at 1:00 AM
12° 1:00 AM
Clear night at 7:00 AM
10° 7:00 AM
Mostly sunny at 1:00 PM
16° 1:00 PM
Clear night at 7:00 PM
13° Thursday 7:00 PM
Clear night at 1:00 AM
1:00 AM
Clear night at 7:00 AM
7:00 AM
Mostly sunny at 1:00 PM
16° 1:00 PM
Partly cloudy night at 7:00 PM
14° Friday 7:00 PM
Clear night at 1:00 AM
10° 1:00 AM
Partly cloudy night at 7:00 AM
10° 7:00 AM
Overcast at 1:00 PM
18° 1:00 PM
Clear night at 7:00 PM
14° Saturday 7:00 PM
Partly cloudy night at 1:00 AM
12° 1:00 AM
Overcast night at 7:00 AM
12° 7:00 AM
Mostly cloudy at 1:00 PM
19° 1:00 PM
Overcast night at 7:00 PM
18° Sunday 7:00 PM
Light rain at 1:00 AM
16° 1:00 AM
Moderate rain at 7:00 AM
16° 7:00 AM
Light rain at 1:00 PM
16° 1:00 PM
Mostly clear night at 7:00 PM
15° Monday 7:00 PM
Clear night at 1:00 AM
11° 1:00 AM
Mostly cloudy night at 7:00 AM
7:00 AM
Light rain at 1:00 PM
14° 1:00 PM
Clear night at 7:00 PM
12° Tuesday 7:00 PM
Clear night at 1:00 AM
1:00 AM
Clear night at 7:00 AM
7:00 AM
Mostly sunny at 1:00 PM
15° 1:00 PM
Clear night at 7:00 PM
11° Wednesday 7:00 PM
Clear night at 1:00 AM
1:00 AM

AIR QUALITY FORECAST

Air Quality Forecast for Chalfont St Giles

Hourly forecast · Updated every 2 hours
Fair
Nearest forecast value 12:00 PM
PM2.5 Fine particles Fair 19,6µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Fair 25,2µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 72,4µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 17,7µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Chalfont St Giles

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.
0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme
Today UV 3,1Moderate 🙂Fair
Tomorrow UV 3,5Moderate 🙂Fair
Friday UV 3,4Moderate 🙂Fair
Saturday UV 2,7Low 🙂Fair
Sunday UV 6,0High 🙂Fair
Monday UV 4,0Moderate Unavailable
Tuesday UV 6,0High Unavailable
Hourly UV index today
12:00 PMUV 2,9 1:00 PMUV 3,1 2:00 PMUV 3,0 3:00 PMUV 2,2 4:00 PMUV 1,3 5:00 PMUV 0,5 6:00 PMUV 0,2 7:00 PMUV 0,0
Today's weather health advice Open today's recommendations.

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Chalfont St Giles

Vertical axis: km/h · Horizontal axis: hours
Hourly wind speed Chart of sustained wind and maximum gusts in km/h. Today 12:00 PM 1:00 PM 2:00 PM 3:00 PM Today 4:00 PM 5:00 PM 6:00 PM 7:00 PM Today 8:00 PM 9:00 PM 10:00 PM 11:00 PM Tomorrow 12:00 AM 1:00 AM 2:00 AM 3:00 AM Tomorrow 4:00 AM 5:00 AM 6:00 AM 7:00 AM Tomorrow 8:00 AM 9:00 AM 10:00 AM 11:00 AM Tomorrow 12:00 PM 1:00 PM 2:00 PM 3:00 PM Tomorrow 4:00 PM 5:00 PM 6:00 PM 7:00 PM Tomorrow 8:00 PM 9:00 PM 10:00 PM 11:00 PM Friday 12:00 AM 1:00 AM 2:00 AM 3:00 AM Friday 4:00 AM 5:00 AM 6:00 AM 7:00 AM Friday 8:00 AM 9:00 AM 10:00 AM 11:00 AM Friday 12:00 PM 1:00 PM 2:00 PM 3:00 PM Friday 4:00 PM 5:00 PM 6:00 PM 7:00 PM Friday 8:00 PM 9:00 PM 10:00 PM 11:00 PM Saturday 12:00 AM 1:00 AM 4:00 AM 7:00 AM Saturday 10:00 AM 1:00 PM 4:00 PM 7:00 PM Saturday 10:00 PM 1:00 AM 4:00 AM 7:00 AM Sunday 10:00 AM 1:00 PM 4:00 PM 7:00 PM Sunday 10:00 PM 1:00 AM 4:00 AM 7:00 AM Monday 10:00 AM 1:00 PM 4:00 PM 7:00 PM Monday 10:00 PM 1:00 AM 7:00 AM 1:00 PM Tuesday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Wednesday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Thursday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Friday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Saturday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Sunday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Monday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Tuesday 7:00 PM 1:00 AM 7:00 AM 1:00 PM Wednesday 7:00 PM 1:00 AM
Sustained wind Max gusts
NIGHT SKY · CHALFONT ST GILES, ENGLAND

Tonight's Stargazing & Shooting Stars

Fair observing conditions. Best local viewing window: 9:00 PM–10:00 PM.

62/100Best-hour score
BEST TIME TONIGHT 9:00 PM–10:00 PM Astronomical darkness: 8:52 PM–4:58 AM
Cloud cover 45% Real hourly forecast for the best viewing hour.
Moonlight 91% Waxing Gibbous · Moon about 21° above the horizon at the best viewing hour.
Meteor activity Southern Taurids Reference ZHR 7 · Radiant 0° high at the best hour.
Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.
Chance ≥1 meteor in 30 min5%
UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.
SEP 20–NOV 20
Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak
ACTIVE NOW
OCT 2–NOV 7
OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak
UPCOMING
OCT 20–DEC 10
Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak
UPCOMING
NOV 6–NOV 30
LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% Moon at peak
UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

Forecast data for Chalfont St Giles were last refreshed today at 11:59 AM. The current forecast period extends through 25/09/2026 at 9:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.