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Northolt observations (nearest observation site to Harpenden)

Harpenden forecast
Mon 24 Apr 2017
2200 2300
Cloudy Partly cloudy night
8.3 ° 6.1 °
Wind direction, speed & gust (mph) arrow down
NW 10 22 NNW 14
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
E E
Humidity arrow down
43% 40%
Pressure (hPa) arrow down
1013 1014
Pressure Tendency (F = Falling, R = Rising, S = Steady) arrow down
R R
Tue 25 Apr 2017
0000 0100 0200 0300 0400 0500 0600 0700 0800 0900 1000 1100 1200 1300 1400 1500 1600 1700 1800 1900 2000 2100 2200
Clear night Clear night Clear night Clear night Clear night Clear night Cloudy Sunny day Sunny day Sunny day Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Sunny intervals Cloudy Cloudy Cloudy Cloudy Sunny intervals Partly cloudy night Clear night
4.8 ° 4.1 ° 3.2 ° 2.8 ° 1.4 ° 0.6 ° 1.0 ° 2.1 ° 3.7 ° 4.7 ° 6.2 ° 7.2 ° 8.9 ° 9.4 ° 9.1 ° 9.7 ° 9.5 ° 9.7 ° 8.8 ° 6.4 ° 5.3 ° 3.9 ° 3.0 °
Wind direction, speed & gust (mph) arrow down
NW 11 NW 10 NW 10 NW 11 WNW 8 W 8 NW 5 NW 9 NNW 13 NNW 10 N 10 NNW 11 NNW 11 N 9 NNW 11 NNW 13 N 8 NNW 17 NNW 9 NNE 17 N 9 NW 7 NNW 8
Visibility (E = Excellent, VG = Very Good, G = Good, M = Moderate, P = Poor, VP = Very Poor) arrow down
E E E E E E E E E E E E E E E E E E E VG E E E
Humidity arrow down
44% 48% 54% 60% 68% 71% 73% 63% 64% 57% 47% 38% 36% 28% 29% 29% 30% 39% 39% 66% 70% 76% 82%
Pressure (hPa) arrow down
1014 1014 1013 1013 1013 1013 1013 1014 1014 1014 1014 1014 1014 1014 1014 1014 1014 1014 1013 1014 1015 1015 1016
Pressure Tendency (F = Falling, R = Rising, S = Steady) arrow down
R R F F F F R R R R R R S R F F F F F R R R R
More detail arrow down

Issued at: 2200 on Tue 25 Apr 2017

= No Data