Today
Expect rain. Daytime high +55°, overnight low +46°. Wind up to 20 mph. Chance of precipitation up to 100%.
Weather in Harrow
United Kingdom · England · 51.5784, -0.3321
Today Now 1:34 AM
+54° Rain
Hourly forecast
Today10/23
Temperature°F
Cloudiness
Precipitation
Windmph
Wind gusts
Humidity
PressureinHg
Dew point°F
Visibilitymi
UV index
Forecast in words
Tomorrow
Tomorrow rain, high +59°, low +43°, 4° warmer.
Week
Seven days ahead fall within +43°…+61°. Warmest day — Tue, up to +61°. Coldest night — Sat, around +43°. Days with precipitation — Fri, Sat, Mon, Tue. Peak wind: Fri, 20 mph.
Week vs norm
- Today 10/23 +55° −1° usually +56°
- Tomorrow 10/24 +59° +3° usually +56°
- Sun 10/25 +54° −2° usually +56°
- Mon 10/26 +59° +3° usually +56°
- Tue 10/27 +61° +6° usually +55°
- Wed 10/28 +59° +4° usually +55°
- Thu 10/29 +59° +4° usually +55°
- Fri 10/30 +50° −5° usually +55°
Difference between forecast daytime high and the 1991–2020 norm for this date.
This day, October 23
Today is cooler than usual for this date.
- Heat record +65° 2011
- Cold record +35° 2007
- Most precipitation 0.8 in 2022
- Strongest gust 58 mph 1998
Records for this calendar date, 1991-2024, ERA5 reanalysis.
Climate in Harrow
Today is about 4° colder than usual for October.
| Month | Daytime / Nighttime | Average | Precipitation in |
|---|---|---|---|
| Jan | +45° / +36° | +40° | 2.3 |
| Feb | +46° / +37° | +41° | 2.0 |
| Mar | +50° / +39° | +44° | 1.9 |
| Apr | +55° / +41° | +48° | 2.0 |
| May | +61° / +47° | +54° | 2.3 |
| Jun | +67° / +52° | +60° | 2.4 |
| Jul | +71° / +56° | +64° | 2.4 |
| Aug | +70° / +56° | +63° | 2.5 |
| Sep | +65° / +52° | +59° | 2.1 |
| Oct | +58° / +47° | +53° | 2.6 |
| Nov | +50° / +41° | +46° | 2.7 |
| Dec | +46° / +38° | +42° | 2.4 |
Climatic normals for 1991–2025 years from ERA5-Land reanalysis.
Astronomical data
Sunrise / sunset
7:39 AM | 5:51 PM
Moon
4:33 PM | 4:08 AM
Moon phase
Waxing gibbous 91%
Next solar eclipse
Calculating for this city…