Today
Expect partly cloudy. Daytime high +45°, overnight low +45°. Wind up to 2 mph. No rain expected.
Weather in Ancaster
Canada · Ontario · 43.2181, -79.9872
Today Now 11:50 PM
+45° Partly cloudy
Hourly forecast
Today10/21
Temperature°F
Cloudiness
Precipitation
Windmph
Wind gusts
Humidity
PressureinHg
Dew point°F
Visibilitymi
UV index
Forecast in words
Tomorrow
Tomorrow high +63° and fog, nighttime low +41°, about 18° warmer.
Week
During the week the thermometer stays between +41°…+63°. Warmest day — Thu, up to +63°. Nighttime weekly low: +41° (Thu). Precipitation expected: Tue, Wed. Clear days — 3.
Week vs norm
- Today 10/21 +45° −13° usually +57°
- Tomorrow 10/22 +63° +6° usually +57°
- Fri 10/23 +55° −1° usually +56°
- Sat 10/24 +57° +1° usually +56°
- Sun 10/25 +63° +7° usually +56°
- Mon 10/26 +63° +7° usually +55°
- Tue 10/27 +52° −3° usually +55°
- Wed 10/28 +46° −8° usually +54°
Difference between forecast daytime high and the 1991–2020 norm for this date.
This day, October 21
Today is a typical day for this date.
- Heat record +75° 2024
- Cold record +31° 2022
- Most precipitation 0.7 in 1995
- Strongest gust 56 mph 1993
Records for this calendar date, 1991-2024, ERA5 reanalysis.
Climate in Ancaster
Today is about 3° warmer than usual for October.
| Month | Daytime / Nighttime | Average | Precipitation in |
|---|---|---|---|
| Jan | +30° / +17° | +23° | 2.8 |
| Feb | +31° / +17° | +24° | 2.4 |
| Mar | +42° / +26° | +33° | 2.7 |
| Apr | +55° / +37° | +44° | 3.6 |
| May | +67° / +48° | +57° | 3.4 |
| Jun | +76° / +58° | +67° | 3.8 |
| Jul | +81° / +63° | +72° | 3.6 |
| Aug | +79° / +62° | +70° | 3.1 |
| Sep | +73° / +56° | +64° | 2.9 |
| Oct | +60° / +45° | +52° | 3.1 |
| Nov | +46° / +34° | +40° | 2.8 |
| Dec | +36° / +25° | +30° | 2.8 |
Climatic normals for 1991–2025 years from ERA5-Land reanalysis.
Astronomical data
Sunrise / sunset
7:41 AM | 6:27 PM
Moon
4:18 PM | 2:28 AM
Moon phase
Waxing gibbous 78%
Next solar eclipse
Calculating for this city…