Rockton Aerodrome Weather Briefing

Page generated at:

Thu May 21 17:00:35 UTC 2026
Thu May 21 13:00:35 EDT 2026

For soaring conditions, visit XCSkies or SkySight For the tephigram, visit Tephigrams For a map of NOTAMs, visit NOTAM Map Nobody wants the source code to this

Environment Canada weather for Cambridge - Kitchener - Waterloo:

Kitchener - Cambridge - Region of Waterloo.
Today..Sunny. High 16. UV index 8 or very high.
Tonight..Partly cloudy. Becoming clear late this evening. Wind east
 20 km/h becoming light late this evening. Low plus 3 with risk of
 frost.
Friday..Mainly sunny. Wind becoming east 20 km/h gusting to 40 late
 in the morning. High 15. UV index 8 or very high.

Environment Canada weather for Hamilton:

City of Hamilton.
Today..Sunny. Wind northeast 20 km/h gusting to 40 becoming light
 this afternoon. Wind becoming northeast 20 late this afternoon.
 High 14. UV index 9 or very high.
Tonight..Clear. Wind northeast 20 km/h becoming light this evening.
 Low plus 4.
Friday..Sunny. Becoming a mix of sun and cloud late in the afternoon.
 Wind becoming northeast 30 km/h gusting to 50 in the morning.
 High 13. UV index 9 or very high.

METARs and TAFs for Waterloo, Hamilton, London and Toronto:

Waterloo Well , Canada (CYKF) 43-28N 080-23W
May 21, 2026 - 12:00 PM EDT / 2026.05.21 1600 UTC
Wind: from the ENE (060 degrees) at 13 MPH (11 KT) gusting to 18 MPH (16 KT) (direction variable):0
Visibility: 9 mile(s):0
Sky conditions: mostly clear
Temperature: 55 F (13 C)
Dew Point: 37 F (3 C)
Relative Humidity: 50%
Pressure (altimeter): 30.35 in. Hg (1027 hPa)
ob: CYKF 211600Z AUTO 06011G16KT 320V080 9SM FEW044 13/03 A3035 RMK SLP284
cycle: 16


Hamilton Airport , Canada (CYHM) 43-10N 079-56W
May 21, 2026 - 12:00 PM EDT / 2026.05.21 1600 UTC
Wind: from the NNE (030 degrees) at 14 MPH (12 KT) (direction variable):0
Visibility: 15 mile(s):0
Sky conditions: partly cloudy
Temperature: 53 F (12 C)
Dew Point: 35 F (2 C)
Relative Humidity: 50%
Pressure (altimeter): 30.36 in. Hg (1028 hPa)
ob: CYHM 211600Z 03012KT 010V070 15SM FEW035 SCT250 12/02 A3036 RMK CU1CI3 CONTRAIL SLP289
cycle: 16


London, Ont., Canada (CYXU) 43-02N 081-09W 278M
May 21, 2026 - 12:00 PM EDT / 2026.05.21 1600 UTC
Wind: from the ENE (060 degrees) at 13 MPH (11 KT) (direction variable):0
Visibility: 15 mile(s):0
Sky conditions: partly cloudy
Temperature: 57 F (14 C)
Dew Point: 39 F (4 C)
Relative Humidity: 50%
Pressure (altimeter): 30.34 in. Hg (1027 hPa)
ob: CYXU 211600Z 06011KT 040V100 15SM SCT043 SCT250 14/04 A3034 RMK CU3CI1 SLP280
cycle: 16


Toronto Pearson Int'L. Ont., Canada (CYYZ) 43-40N 079-38W 173M
May 21, 2026 - 12:00 PM EDT / 2026.05.21 1600 UTC
Wind: from the NE (040 degrees) at 9 MPH (8 KT) (direction variable):0
Visibility: 15 mile(s):0
Sky conditions: mostly clear
Temperature: 57 F (14 C)
Dew Point: 37 F (3 C)
Relative Humidity: 47%
Pressure (altimeter): 30.36 in. Hg (1028 hPa)
ob: CYYZ 211600Z 04008KT 310V110 15SM FEW040 FEW260 14/03 A3036 RMK CU1CI1 CU TR CI TR SLP287
cycle: 16