Current Conditions
Castlereagh, Northern Ireland
Wind
NW 9 mph15 km/h
Humidity
89%
Cloud Cover
61%
As of Wednesday, September 23, 2026 at 6:12 AM GMT+1
Today's Outlook
Day
Mostly cloudy and mild, with a high of 60°F16°C and morning low of 53°F12°C. Breezy from the NW at 10 to 11 mph16 to 17 km/h. 95% chance of rain in the morning. Dry air.
Night
Overcast, with a low around 52°F11°C. Breezy from the NNW at 6 to 11 mph10 to 17 km/h. 97% chance of light rain overnight.
7-Day Forecast
| Day | Condition | High (°F) | Low (°F) | Precip (mm) | Cloud Cover (%) | Wind (mph) | |
|---|---|---|---|---|---|---|---|
| Rain | High 60°F16°C | Low 52°F11°C | Precip 0.19 in4.8 mm97% | Cloud 73% | Wind NW 8 mph13 km/h | Wednesday: Mostly cloudy and mild, with a high of 60°F16°C and morning low of 53°F12°C. Breezy from the NW at 10 to 11 mph16 to 17 km/h. 95% chance of rain in the morning. Dry air. Wednesday Night: Overcast, with a low around 52°F11°C. Breezy from the NNW at 6 to 11 mph10 to 17 km/h. 97% chance of light rain overnight. | |
| Light Rain | High 64°F18°C | Low 52°F11°C | Precip 0.03 in0.7 mm59% | Cloud 97% | Wind S 13 mph21 km/h | Thursday: Overcast and mild, with a high of 64°F18°C and morning low of 55°F13°C. Windy from the S at 15 to 17 mph24 to 27 km/h. Thursday Night: Overcast, with a low around 52°F11°C. Breezy from the S at 11 to 14 mph18 to 22 km/h. 59% chance of light rain overnight. | |
| Light Rain | High 59°F15°C | Low 55°F13°C | Precip 0.06 in1.6 mm60% | Cloud 87% | Wind SW 9 mph14 km/h | Friday: Overcast and mild, with a high of 59°F15°C. Breezy from the SW at 9 mph14 km/h. 28% chance of drizzle throughout the day. Dry air. Friday Night: Mostly cloudy, with a low around 55°F13°C. Breezy from the SW at 9 mph14 km/h. 60% chance of light rain overnight. | |
| Clear | High 63°F17°C | Low 52°F11°C | Precip 0 in0.1 mm3% | Cloud 39% | Wind SSW 12 mph20 km/h | Saturday: Partly cloudy and mild, with a high of 63°F17°C and morning low of 52°F11°C. Breezy from the SSW at 13 to 15 mph21 to 23 km/h. Saturday Night: Partly cloudy, with a low around 52°F11°C. Breezy from the SSW at 12 to 13 mph19 to 21 km/h. | |
| Light Rain | High 60°F16°C | Low 52°F11°C | Precip 0.25 in6.3 mm69% | Cloud 75% | Wind SSW 13 mph20 km/h | Sunday: Overcast and mild, with a high of 60°F16°C and morning low of 56°F13°C. Breezy from the S at 14 to 16 mph23 to 25 km/h. 69% chance of light rain throughout the day. Sunday Night: Mostly cloudy, with a low around 52°F11°C. Breezy from the SSW at 11 to 14 mph17 to 22 km/h. 51% chance of showers in the evening. | |
| Partly Cloudy | High 60°F15°C | Low 47°F8°CFeels 43°F6°C | Precip 0.02 in0.6 mm4% | Cloud 62% | Wind S 8 mph13 km/h | Monday: Mostly cloudy and mild, with a high of 60°F15°C and morning low of 47°F8°C. Breezy from the SSW at 8 to 9 mph13 to 15 km/h. Dry air. Monday Night: Mostly cloudy, with a low around 48°F9°C. Breezy from the S at 8 to 10 mph13 to 16 km/h. | |
| Light Rain | High 63°F17°C | Low 55°F13°C | Precip 0.28 in7.1 mm57% | Cloud 85% | Wind SE 18 mph29 km/h | Tuesday: Overcast and mild, with a high of 63°F17°C and morning low of 57°F14°C. Windy from the SE at 20 to 21 mph32 to 34 km/h. 57% chance of light rain throughout the day. Tuesday Night: Overcast, with a low around 55°F13°C. Windy from the SE at 16 to 19 mph26 to 31 km/h. 56% chance of light rain throughout the night. |
15-Day Forecast
| Day | High | Low | Precip | Cloud Cover | Condition | Wind | |
|---|---|---|---|---|---|---|---|
| WednesdaySep 23 | 60°F16°C | 52°F11°C | 0.19 in4.8 mm· 97% | 73% | Rain | NW 8 mph13 km/h | |
DayMostly cloudy and mild, with a high of 60°F16°C and morning low of 53°F12°C. Breezy from the NW at 10 to 11 mph16 to 17 km/h. 95% chance of rain in the morning. Dry air. NightOvercast, with a low around 52°F11°C. Breezy from the NNW at 6 to 11 mph10 to 17 km/h. 97% chance of light rain overnight. | |||||||
| ThursdaySep 24 | 64°F18°C | 52°F11°C | 0.03 in0.7 mm· 59% | 97% | Light Rain | S 13 mph21 km/h | |
DayOvercast and mild, with a high of 64°F18°C and morning low of 55°F13°C. Windy from the S at 15 to 17 mph24 to 27 km/h. NightOvercast, with a low around 52°F11°C. Breezy from the S at 11 to 14 mph18 to 22 km/h. 59% chance of light rain overnight. | |||||||
| FridaySep 25 | 59°F15°C | 55°F13°C | 0.06 in1.6 mm· 60% | 87% | Light Rain | SW 9 mph14 km/h | |
DayOvercast and mild, with a high of 59°F15°C. Breezy from the SW at 9 mph14 km/h. 28% chance of drizzle throughout the day. Dry air. NightMostly cloudy, with a low around 55°F13°C. Breezy from the SW at 9 mph14 km/h. 60% chance of light rain overnight. | |||||||
| SaturdaySep 26 | 63°F17°C | 52°F11°C | 0 in0.1 mm· 3% | 39% | Clear | SSW 12 mph20 km/h | |
DayPartly cloudy and mild, with a high of 63°F17°C and morning low of 52°F11°C. Breezy from the SSW at 13 to 15 mph21 to 23 km/h. NightPartly cloudy, with a low around 52°F11°C. Breezy from the SSW at 12 to 13 mph19 to 21 km/h. | |||||||
| SundaySep 27 | 60°F16°C | 52°F11°C | 0.25 in6.3 mm· 69% | 75% | Light Rain | SSW 13 mph20 km/h | |
DayOvercast and mild, with a high of 60°F16°C and morning low of 56°F13°C. Breezy from the S at 14 to 16 mph23 to 25 km/h. 69% chance of light rain throughout the day. NightMostly cloudy, with a low around 52°F11°C. Breezy from the SSW at 11 to 14 mph17 to 22 km/h. 51% chance of showers in the evening. | |||||||
| MondaySep 28 | 60°F15°C | 47°F8°C Feels 43°F6°C | 0.02 in0.6 mm· 4% | 62% | Partly Cloudy | S 8 mph13 km/h | |
DayMostly cloudy and mild, with a high of 60°F15°C and morning low of 47°F8°C. Breezy from the SSW at 8 to 9 mph13 to 15 km/h. Dry air. NightMostly cloudy, with a low around 48°F9°C. Breezy from the S at 8 to 10 mph13 to 16 km/h. | |||||||
| TuesdaySep 29 | 63°F17°C | 55°F13°C | 0.28 in7.1 mm· 57% | 85% | Light Rain | SE 18 mph29 km/h | |
DayOvercast and mild, with a high of 63°F17°C and morning low of 57°F14°C. Windy from the SE at 20 to 21 mph32 to 34 km/h. 57% chance of light rain throughout the day. NightOvercast, with a low around 55°F13°C. Windy from the SE at 16 to 19 mph26 to 31 km/h. 56% chance of light rain throughout the night. | |||||||
| WednesdaySep 30 | 62°F17°C | 57°F14°C | 0.24 in6.1 mm· 48% | 61% | Showers | S 17 mph27 km/h | |
DayMostly cloudy and mild, with a high of 62°F17°C. Windy from the S at 17 to 18 mph28 to 29 km/h. 42% chance of showers throughout the day. NightMostly cloudy, with a low around 57°F14°C. Windy from the S at 16 to 18 mph26 to 29 km/h. 48% chance of showers throughout the night. | |||||||
| ThursdayOct 1 | 61°F16°C | 54°F12°C | 0.07 in1.9 mm· 33% | 59% | Drizzle | S 12 mph20 km/h | |
DayMostly cloudy and mild, with a high of 61°F16°C and morning low of 54°F12°C. Breezy from the SSW at 13 mph20 km/h. 33% chance of drizzle throughout the day. NightMostly cloudy, with a low around 54°F12°C. Breezy from the S at 12 to 13 mph19 to 22 km/h. 26% chance of drizzle throughout the night. | |||||||
| FridayOct 2 | 60°F15°C | 53°F11°C | 0.18 in4.6 mm· 31% | 69% | Showers | SSW 11 mph18 km/h | |
DayMostly cloudy and mild, with a high of 60°F15°C and morning low of 53°F11°C. Breezy from the SSW at 12 to 13 mph19 to 21 km/h. 31% chance of light rain throughout the day. NightMostly cloudy, with a low around 53°F12°C. Breezy from the SSW at 10 to 11 mph17 to 18 km/h. 29% chance of showers throughout the night. | |||||||
| SaturdayOct 3 | 59°F15°C | 53°F12°C | 0.17 in4.4 mm· 33% | 76% | Light Rain | S 11 mph17 km/h | |
DayMostly cloudy and mild, with a high of 59°F15°C and morning low of 53°F12°C. Breezy from the S at 11 to 12 mph18 to 19 km/h. 33% chance of light rain throughout the day. NightMostly cloudy, with a low around 53°F12°C. Breezy from the S at 10 to 11 mph17 to 17 km/h. 27% chance of light rain throughout the night. | |||||||
| SundayOct 4 | 59°F15°C | 54°F12°C | 0.19 in4.9 mm· 33% | 79% | Light Rain | S 11 mph17 km/h | |
DayOvercast and mild, with a high of 59°F15°C and morning low of 54°F12°C. Breezy from the S at 11 to 12 mph18 to 19 km/h. 33% chance of light rain throughout the day. NightMostly cloudy, with a low around 54°F12°C. Breezy from the S at 10 to 11 mph17 to 17 km/h. 29% chance of light rain throughout the night. | |||||||
| MondayOct 5 | 59°F15°C | 53°F12°C | 0.13 in3.3 mm· 24% | 74% | Light Rain | S 10 mph17 km/h | |
DayMostly cloudy and mild, with a high of 59°F15°C and morning low of 53°F12°C. Breezy from the S at 11 mph18 km/h. 24% chance of drizzle throughout the day. NightMostly cloudy, with a low around 54°F12°C. Breezy from the S at 10 mph16 km/h. 23% chance of light rain throughout the night. | |||||||
| TuesdayOct 6 | 59°F15°C | 53°F12°C | 0.13 in3.2 mm· 26% | 75% | Light Rain | S 10 mph17 km/h | |
DayMostly cloudy and mild, with a high of 59°F15°C and morning low of 53°F12°C. Breezy from the S at 11 mph17 km/h. 24% chance of drizzle throughout the day. NightMostly cloudy, with a low around 53°F12°C. Breezy from the S at 10 mph16 km/h. 26% chance of light rain throughout the night. | |||||||
| WednesdayOct 7 | 58°F14°C | 53°F12°C | 0.12 in3 mm· 27% | 72% | Drizzle | S 10 mph17 km/h | |
DayMostly cloudy and mild, with a high of 58°F14°C. Breezy from the S at 11 mph17 km/h. 27% chance of drizzle throughout the day. NightMostly cloudy, with a low around 53°F12°C. Breezy from the S at 10 mph16 km/h. 23% chance of drizzle throughout the night. | |||||||
Nearby Cities
About This Forecast
This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.
WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →
Access WeatherMesh forecasts programmatically via our API. API Documentation →
Coordinates: 54.5735°N, 5.8847°W·Elevation: 29m·Timezone: Europe/London·Population: 56,679