Weather tomorrow: Ottawa
Forecast for tomorrow, 28 September: overcast. The daily air temperature range is 12 to 18 °C. Chance of precipitation tomorrow according to the daily forecast: 22%. Forecast precipitation amount: 0 mm. Wind from the northeast at 5 m/s.
monday 28 september
Overcast
+18°
+12°
Sunset 18:49
G/m activity 2
Precipitation probability 22%
Precipitation 0.0 mm
Wind
5 m/s
Pressure 1009.3 hPa
Index UV 2
Humidity 72%
Sunrise 06:57
Moon Waning Gibbous
Sunrise 06:57
Sunset 18:49
G/m activity 2
Moon Waning Gibbous
00:00
15°
E
3.9 m/s01:00
15°
E
3.9 m/s02:00
15°
E
3.3 m/s03:00
14°
NE
2.5 m/s04:00
13°
NE
2.2 m/s05:00
13°
N
2.2 m/s06:00
13°
NE
2.5 m/s07:00
13°
NE
2.5 m/s08:00
13°
NE
3.3 m/s09:00
14°
NE
4.2 m/s10:00
15°
E
4.2 m/s11:00
16°
E
4.4 m/s12:00
15°
NE
4.2 m/s13:00
15°
NE
4.7 m/s14:00
13°
NE
4.4 m/s15:00
11°
NE
3.6 m/s16:00
12°
NE
3.3 m/s17:00
12°
NE
3.3 m/s18:00
12°
NE
2.5 m/s19:00
12°
N
1.9 m/s20:00
11°
N
2.2 m/s21:00
11°
N
2.2 m/s22:00
11°
NE
1.9 m/s23:00
10°
NE
1.7 m/sWhat is the atmospheric pressure in Ottawa tomorrow?
Pressure adjusted for location elevation. Location elevation: 61 m relative to sea level
Forecast for 28.09.2026 · Local time
Pressure: 1007.9–1009.3 hPa.
Minimum: 1007.9 hPa15:00–19:00
Maximum: 1009.3 hPa00:00–14:00Also at other hours
Largest change over 3 hours:
−1.3 hPa · 12:00–15:00
First of 6 intervals with the same change magnitude shown.
hPa · Change over the previous 3 hours
Colours show pressure relative to this day’s range
Lower · 1007.9 Scale midpoint · 1008.6 Higher · 1009.3 Largest change over 3 hoursWhat is the chance of precipitation in Ottawa tomorrow?
Chance of precipitation tomorrow according to the daily forecast: 22%.
Precipitation for tomorrow
| 00:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 14% |
|---|---|---|
| 01:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 12% |
| 02:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 13% |
| 03:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 15% |
| 04:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 17% |
| 05:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 21% |
| 06:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 20% |
| 07:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 20% |
| 08:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 19% |
| 09:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 14% |
| 10:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 12% |
| 11:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 12% |
| 12:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 13% |
| 13:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 16% |
| 14:00 | Amount of precipitation in millimeters (mm): 0.1 mm | Probability of precipitation in percent (%): 31% |
| 15:00 | Amount of precipitation in millimeters (mm): 0.1 mm | Probability of precipitation in percent (%): 38% |
| 16:00 | Amount of precipitation in millimeters (mm): 0.1 mm | Probability of precipitation in percent (%): 41% |
| 17:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 27% |
| 18:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 20% |
| 19:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 23% |
| 20:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 25% |
| 21:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 25% |
| 22:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 35% |
| 23:00 | Amount of precipitation in millimeters (mm): 0 mm | Probability of precipitation in percent (%): 26% |
Ottawa weather tomorrow: morning, afternoon and evening
Morning: overcast, +12 °C. Afternoon: overcast, +16 °C. Evening: overcast, +14 °C.
According to the hourly forecast, tomorrow's highest temperature is expected at 11:00, at around +16 °C. Times are local.
Tomorrow's strongest winds are expected at 13:00 (from the northeast). The lightest winds are expected at 23:00 (from the northeast). Times are local.
Temperature and wind for tomorrow
What geomagnetic activity is forecast for Ottawa tomorrow?
The highest forecast Kp index for tomorrow is 2.
