5-day weather forecast Niagara Sep 15, 2026
18°Weather forecast Niagara today Sep 15, 2026: overcast, temperature from 12 °C to 23 °C.
Precipitation probability 89%. Wind up to 7 m/s (gusts 17.42 m/s). Air humidity 34–99%, atmospheric pressure 758–767 mm Hg, UV index up to 5.
5 days at a glance — tap a day to open it
Sunrise 06:30
Sunset 19:03
Sunset 19:03
Waxing Crescent23% illuminated
Moonrise 12:04 · Moonset 20:48
Moonrise 12:04 · Moonset 20:48
Chart
Table
Tue, Sep 15, 2026
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Moderate rain | 12 °C | 89% (3.54 mm/hr) | 100% | 97% | 761 mm Hg | S 186° 4.11 (11.11) m/s | 0 |
| 01:00 |  Light drizzle | 13 °C | 65% (0.39 mm/hr) | 100% | 97% | 760 mm Hg | S 187° 5.11 (13.11) m/s | 0 |
| 02:00 |  Light rain shower | 13 °C | 56% (0.31 mm/hr) | 100% | 97% | 758 mm Hg | SSW 192° 5.81 (16.42) m/s | 0 |
| 03:00 | Light rain shower | 13 °C | 67% (0.53 mm/hr) | 100% | 98% | 758 mm Hg | SSW 196° 5.69 (17.42) m/s | 0 |
| 04:00 |  Patchy rain possible | 12 °C | 36% (0.01 mm/hr) | 100% | 98% | 758 mm Hg | SSW 193° 3.89 (14.61) m/s | 0 |
| 05:00 | Patchy rain possible | 12 °C | 40% (0.05 mm/hr) | 100% | 99% | 758 mm Hg | SSW 195° 3.89 (14.22) m/s | 0 |
| 06:00 |  Fog | 13 °C | 43% | 100% | 99% | 758 mm Hg | SSW 200° 3.31 (12.61) m/s | 0 |
| 07:00 |  Overcast | 14 °C | 35% | 100% | 99% | 758 mm Hg | SSW 203° 3.5 (11.61) m/s | 0 |
| 08:00 | Overcast | 14 °C | 34% | 100% | 98% | 758 mm Hg | SSW 197° 3.61 (11.33) m/s | 0.2 |
| 09:00 | Overcast | 15 °C | 34% | 100% | 97% | 758 mm Hg | SSW 210° 4.19 (12.64) m/s | 0.4 |
| 10:00 | Overcast | 16 °C | 32% | 100% | 93% | 758 mm Hg | SSW 213° 4.11 (13.61) m/s | 0.9 |
| 11:00 | Overcast | 20 °C | 18% | 100% | 70% | 758 mm Hg | WSW 237° 5.19 (14.53) m/s | 3 |
| 12:00 | Overcast | 23 °C | 10% | 100% | 43% | 758 mm Hg | WSW 258° 6.69 (14.42) m/s | 4.6 |
| 13:00 | Overcast | 23 °C | 10% | 100% | 36% | 758 mm Hg | W 271° 7 (13.83) m/s | 5 |
| 14:00 | Overcast | 23 °C | 10% | 100% | 34% | 759 mm Hg | W 275° 6.89 (11.92) m/s | 4.7 |
| 15:00 | Overcast | 22 °C | 10% | 100% | 37% | 760 mm Hg | W 280° 6.31 (10.81) m/s | 3.5 |
| 16:00 | Overcast | 21 °C | 10% | 100% | 41% | 761 mm Hg | WNW 283° 4.61 (10.33) m/s | 1.8 |
| 17:00 | Overcast | 21 °C | 10% | 100% | 43% | 761 mm Hg | WNW 293° 4.39 (9.31) m/s | 0.9 |
| 18:00 | Overcast | 19 °C | 11% | 98% | 48% | 763 mm Hg | WNW 302° 3.19 (8.03) m/s | 0.2 |
| 19:00 | Overcast | 18 °C | 13% | 100% | 54% | 764 mm Hg | NNW 334° 3.11 (8.42) m/s | 0 |
| 20:00 | Overcast | 16 °C | 14% | 100% | 57% | 765 mm Hg | NNW 337° 3.39 (9.92) m/s | 0 |
| 21:00 | Overcast | 16 °C | 14% | 100% | 58% | 766 mm Hg | NW 323° 2.69 (10.72) m/s | 0 |
| 22:00 | Overcast | 16 °C | 15% | 100% | 62% | 767 mm Hg | NW 323° 2.81 (11.03) m/s | 0 |
| 23:00 | Overcast | 14 °C | 17% | 100% | 67% | 767 mm Hg | NW 310° 2.19 (8.61) m/s | 0 |
Tue, Sep 15, 2026
Frequently asked questions about the 5-day weather in Niagara
What will the weather be like in Niagara over the next 5 days?
Over the next 5 days in Niagara the temperature is expected to range from about 8 to 23 °C. See the detailed hourly forecast for each of the 5 days in the charts above.
On which of the next 5 days will it rain in Niagara?
The chance of rain in Niagara over the next 5 days reaches 92%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.
How accurate is the 5-day weather forecast for Niagara?
A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.
Which of the next 5 days in Niagara will be the warmest and which the coolest?
Over the next 5 days the temperature in Niagara ranges from about 8 to 23 °C. Compare the warmest and coolest day on the temperature chart above.
Will it be windy in Niagara over the next 5 days?
Over the next 5 days the wind in Niagara picks up to 7 m/s. The windiest days are easy to spot on the wind chart above.
Which day of the week in Niagara is best for a walk or a trip?
For a walk or a trip, pick the days with the lowest chance of rain (up to 92%) and light wind — easy to compare on the 5-day charts above.
How can I best use the 5-day forecast for Niagara?
The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.
Will I need an umbrella or sunscreen in Niagara this week?
Rain reaches a 92% chance across the next 5 days, so pack something waterproof for the wettest of them — the daily strip above shows which. Today’s UV index peaks at 5; sunscreen is worth it from about 3 upwards.
Niagara on the map
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.