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Newcastle ON Weather - Sunny
Sunny
61°F
Updated 11:35 am
Feels Like 55°F
Humidity 49%
Wind ESE 9 mph
Barometer  30.5 in
Visibility 6 mi
Newcastle ON Weather - Sunny
Sunny
16°C
Updated 11:35 am
Feels Like 13°C
Humidity 49%
Wind ESE 14 km/h
Barometer  103.3 kPa
Visibility 10 km
Newcastle, ON Weather and Current Conditionsnewcastle on weather forecast

Newcastle, ON Weather Forecast

Newcastle Ontario WeatherNewcastle, Ontario Weather Weather Forecast
14 day API Newcastle, ON weather forecast. Note. Our 7-day weather forecast for Newcastle, Ontario is our most reliable and accurate forecast. This model should only be used as a likely scenario. Forecasting more than 7 days is difficult.
Newcastle, ON Weather Forecast Dated: 1135 AM Thu Sep 24 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Thursday, September 24, 2026

Mid-Morning
Newcastle Weather - 2026-09-24 - Morning - Sunny
12°C 53°F
Sunny
Mid-Afternoon
Newcastle Weather - 2026-09-24 - Afternoon - Sunny
19°C 66°F
Sunny
Early-Evening
Newcastle Weather - 2026-09-24 - Evening - Sunny
14°C 57°F
Sunny
Refreshing around 19°C 66°F, sunny throughout the day, with steady humidity and barometric pressure falling. Winds turning from the ENE to the N at 6 km/h 4 mph.

Friday, September 25, 2026

Mid-Morning
Newcastle Weather - 2026-09-25 - Morning - Partly Cloudy
12°C 54°F
Partly Cloudy
Mid-Afternoon
Newcastle Weather - 2026-09-25 - Afternoon - Sunny
22°C 71°F
Sunny
Early-Evening
Newcastle Weather - 2026-09-25 - Evening - Overcast
17°C 63°F
Overcast
Comfortable with temperatures reaching 22°C 71°F, cloudy in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling.

Saturday, September 26, 2026

Mid-Morning
Newcastle Weather - 2026-09-26 - Morning - Overcast
13°C 56°F
Overcast
Mid-Afternoon
Newcastle Weather - 2026-09-26 - Afternoon - Overcast
23°C 73°F
Overcast
Early-Evening
Newcastle Weather - 2026-09-26 - Evening - Overcast
18°C 65°F
Overcast
Enjoyable around 23°C 73°F, overcast throughout the day, with lower humidity and steady pressure. Winds blowing from the N at 15 km/h 9 mph.

Sunday, September 27, 2026

Mid-Morning
Newcastle Weather - 2026-09-27 - Morning - Overcast
15°C 59°F
Overcast
Mid-Afternoon
Newcastle Weather - 2026-09-27 - Afternoon - Overcast
24°C 75°F
Overcast
Early-Evening
Newcastle Weather - 2026-09-27 - Evening - Sunny
19°C 67°F
Sunny
Mild temperatures up to 24°C 75°F, overcast through the afternoon, turning sunny this evening, with lower humidity and steady pressure. Winds moving from the N to the NNE at 13 km/h 8 mph.

Monday, September 28, 2026

Mid-Morning
Newcastle Weather - 2026-09-28 - Morning - Sunny
13°C 56°F
Sunny
Mid-Afternoon
Newcastle Weather - 2026-09-28 - Afternoon - Overcast
23°C 73°F
Overcast
Early-Evening
Newcastle Weather - 2026-09-28 - Evening - Sunny
19°C 65°F
Sunny
Mild with a high of 23°C 73°F, sunny in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds swinging from the NNE to the NW at 10 km/h 6 mph.

Tuesday, September 29, 2026

Mid-Morning
Newcastle Weather - 2026-09-29 - Morning - Sunny
16°C 61°F
Sunny
Mid-Afternoon
Newcastle Weather - 2026-09-29 - Afternoon - Sunny
22°C 72°F
Sunny
Early-Evening
Newcastle Weather - 2026-09-29 - Evening - Sunny
18°C 63°F
Sunny
Pleasant near 22°C 72°F, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and steady pressure. Winds shifting from the WNW to the SE at 7 km/h 5 mph.

Wednesday, September 30, 2026

Mid-Morning
Newcastle Weather - 2026-09-30 - Morning - Sunny
17°C 62°F
Sunny
Mid-Afternoon
Newcastle Weather - 2026-09-30 - Afternoon - Sunny
25°C 77°F
Sunny
Early-Evening
Newcastle Weather - 2026-09-30 - Evening - Overcast
24°C 75°F
Overcast
Comfortable with temperatures reaching 25°C 77°F, cloudy throughout the day, with lower humidity and barometric pressure falling. Winds increasing from the SE at 12 km/h 7 mph to S at 26 km/h 16 mph. Gusts up to 54 km/h 33 mph.

Thursday, October 1, 2026

Mid-Morning
Newcastle Weather - 2026-10-01 - Morning - Overcast
11°C 51°F
Overcast
Mid-Afternoon
Newcastle Weather - 2026-10-01 - Afternoon - Partly Cloudy
15°C 59°F
Partly Cloudy
Early-Evening
Newcastle Weather - 2026-10-01 - Evening - Sunny
12°C 54°F
Sunny
Cool with a high near 15°C 59°F, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds switching from the WSW to the WNW at 14 km/h 9 mph.

Friday, October 2, 2026

Mid-Morning
Newcastle Weather - 2026-10-02 - Morning - Sunny
11°C 51°F
Sunny
Mid-Afternoon
Newcastle Weather - 2026-10-02 - Afternoon - Sunny
17°C 63°F
Sunny
Early-Evening
Newcastle Weather - 2026-10-02 - Evening - Overcast
14°C 56°F
Overcast
Refreshing around 17°C 63°F, sunny through the afternoon, turning cloudy this evening, with lower humidity and steady pressure.

Saturday, October 3, 2026

Mid-Morning
Newcastle Weather - 2026-10-03 - Morning - Overcast
12°C 54°F
Overcast
Mid-Afternoon
Newcastle Weather - 2026-10-03 - Afternoon - Rain
14°C 58°F
Rain
Early-Evening
Newcastle Weather - 2026-10-03 - Evening - Light Rain
10°C 49°F
Light Rain
Mildly cool near 14°C 58°F, drier morning followed by showers lasting through evening, with increasing humidity and barometric pressure falling. Winds building from ENE at 15 km/h 10 mph to NNE at 33 km/h 21 mph. Gusts up to 60 km/h 37 mph.

Sunday, October 4, 2026

Mid-Morning
Newcastle Weather - 2026-10-04 - Morning - Overcast
10°C 49°F
Overcast
Mid-Afternoon
Newcastle Weather - 2026-10-04 - Afternoon - Sunny
12°C 53°F
Sunny
Early-Evening
Newcastle Weather - 2026-10-04 - Evening - Scattered Showers
12°C 52°F
Scattered Showers
Chilly near 12°C 53°F, scattered downpours possible, with lower humidity and barometric pressure rising. Winds WNW at 29 km/h 18 mph. Gusts up to 52 km/h 32 mph.

Monday, October 5, 2026

Mid-Morning
Newcastle Weather - 2026-10-05 - Morning - Overcast
9°C 49°F
Overcast
Mid-Afternoon
Newcastle Weather - 2026-10-05 - Afternoon - Scattered Showers
15°C 58°F
Scattered Showers
Early-Evening
Newcastle Weather - 2026-10-05 - Evening - Cloudy
13°C 55°F
Cloudy
Cool with a high near 15°C 58°F, locally heavy downpours at times, with steady humidity and steady pressure. Winds shifting from the WNW to the SW at 12 km/h 8 mph.

Tuesday, October 6, 2026

Mid-Morning
Newcastle Weather - 2026-10-06 - Morning - Scattered Showers
11°C 51°F
Scattered Showers
Mid-Afternoon
Newcastle Weather - 2026-10-06 - Afternoon - Scattered Showers
9°C 49°F
Scattered Showers
Early-Evening
Newcastle Weather - 2026-10-06 - Evening - Light Showers
8°C 46°F
Light Showers
Brisk around 9°C 49°F, periods of heavy rain and gusty conditions, with lower humidity and barometric pressure rising. Winds turning from the SSW to the WNW at 31 km/h 20 mph. Gusts up to 59 km/h 37 mph.

Wednesday, October 7, 2026

Mid-Morning
Newcastle Weather - 2026-10-07 - Morning - Scattered Showers
5°C 40°F
Scattered Showers
Mid-Afternoon
Newcastle Weather - 2026-10-07 - Afternoon - Sunny
10°C 49°F
Sunny
Early-Evening
Newcastle Weather - 2026-10-07 - Evening - Partly Cloudy
7°C 45°F
Partly Cloudy
Cool and brisk at 10°C 49°F, scattered downpours possible, with steady humidity and steady pressure. Winds switching from the NW to the WNW at 14 km/h 9 mph.

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Weather by the Numbers

Thu, 24th
Newcastle ON Weather - Thursday, Sep 24, 2026 - Sunny
Hi: 19°C 66°F
Lo: 8°C 47°F
Sunrise 07:05 AM
Sunset 07:09 PM
Wind ESE 14 km/h9 mph
Dew Point 5°C41°F
uv Index 4
Barometric Pressure 103.3 kPa30.5 in
POP 1% *
Humidity 44%
Fri, 25th
Newcastle ON Weather - Friday, Sep 25, 2026 - Overcast
Hi: 22°C 72°F
Lo: 8°C 46°F
Sunrise 07:06 AM
Sunset 07:07 PM
Wind N 9 km/h6 mph
Dew Point 1°C35°F
uv Index 4
Barometric Pressure 102.6 kPa30.3 in
POP 9% *
Humidity 31%
Sat, 26th
Newcastle ON Weather - Saturday, Sep 26, 2026 - Cloudy
Hi: 23°C 73°F
Lo: 10°C 51°F
Sunrise 07:07 AM
Sunset 07:05 PM
Wind N 14 km/h9 mph
Dew Point 5°C41°F
uv Index 4
Barometric Pressure 102.1 kPa30.15 in
POP 8% *
Humidity 36%
Sun, 27th
Newcastle ON Weather - Sunday, Sep 27, 2026 - Partly Cloudy
Hi: 24°C 75°F
Lo: 13°C 55°F
Sunrise 07:09 AM
Sunset 07:03 PM
Wind N 19 km/h12 mph
Dew Point 6°C42°F
uv Index 4
Barometric Pressure 101.6 kPa30 in
POP 3% *
Humidity 35%
Mon, 28th
Newcastle ON Weather - Monday, Sep 28, 2026 - Sunny
Hi: 23°C 73°F
Lo: 11°C 51°F
Sunrise 07:10 AM
Sunset 07:02 PM
Wind NNE 11 km/h7 mph
Dew Point 2°C35°F
uv Index 6
Barometric Pressure 101.7 kPa30.03 in
POP 1% *
Humidity 29%
Tue, 29th
Newcastle ON Weather - Tuesday, Sep 29, 2026 - Sunny
Hi: 22°C 72°F
Lo: 13°C 55°F
Sunrise 07:11 AM
Sunset 07:00 PM
Wind SSW 12 km/h7 mph
Dew Point 10°C50°F
uv Index 6
Barometric Pressure 101.8 kPa30.06 in
POP 2% *
Humidity 49%
Wed, 30th
Newcastle ON Weather - Wednesday, Sep 30, 2026 - Overcast
Hi: 25°C 77°F
Lo: 14°C 57°F
Sunrise 07:12 AM
Sunset 06:58 PM
Wind S 20 km/h12 mph
Dew Point 11°C51°F
uv Index 5
Barometric Pressure 101.3 kPa29.91 in
POP 5% *
Humidity 49%
Thu, 1st
Newcastle ON Weather - Thursday, Oct 1, 2026 - Partly Cloudy
Hi: 19°C 66°F
Lo: 9°C 49°F
Sunrise 07:13 AM
Sunset 06:56 PM
Wind W 25 km/h16 mph
Dew Point 4°C39°F
uv Index 4
Barometric Pressure 101.5 kPa29.97 in
POP 10% *
Humidity 54%
Fri, 2nd
Newcastle ON Weather - Friday, Oct 2, 2026 - Sunny
Hi: 18°C 64°F
Lo: 8°C 46°F
Sunrise 07:14 AM
Sunset 06:54 PM
Wind SSW 12 km/h7 mph
Dew Point 5°C41°F
uv Index 5
Barometric Pressure 101.8 kPa30.06 in
POP 2% *
Humidity 49%
Sat, 3rd
Newcastle ON Weather - Saturday, Oct 3, 2026 - Overcast
Hi: 16°C 61°F
Lo: 9°C 48°F
Sunrise 07:16 AM
Sunset 06:52 PM
Wind ENE 22 km/h14 mph
Dew Point 5°C40°F
uv Index 3
Barometric Pressure 100.9 kPa29.8 in
POP 12% *
Humidity 51%
Sun, 4th
Newcastle ON Weather - Sunday, Oct 4, 2026 - Patchy Rain Nearby
Hi: 12°C 54°F
Lo: 9°C 47°F
Sunrise 07:17 AM
Sunset 06:51 PM
Wind WNW 30 km/h18 mph
Dew Point 7°C45°F
uv Index 3
Barometric Pressure 100.1 kPa29.56 in
POP 24% *
Humidity 80%
Mon, 5th
Newcastle ON Weather - Monday, Oct 5, 2026 - Overcast
Hi: 15°C 59°F
Lo: 8°C 47°F
Sunrise 07:18 AM
Sunset 06:49 PM
Wind WNW 21 km/h13 mph
Dew Point 3°C37°F
uv Index 3
Barometric Pressure 102 kPa30.12 in
POP 11% *
Humidity 51%
Tue, 6th
Newcastle ON Weather - Tuesday, Oct 6, 2026 - Patchy Rain Nearby
Hi: 12°C 53°F
Lo: 6°C 43°F
Sunrise 07:19 AM
Sunset 06:47 PM
Wind WSW 33 km/h21 mph
Dew Point 9°C47°F
uv Index 3
Barometric Pressure 100.4 kPa29.65 in
POP 43% *
Humidity 83%
Wed, 7th
Newcastle ON Weather - Wednesday, Oct 7, 2026 - Patchy Rain Nearby
Hi: 10°C 49°F
Lo: 3°C 37°F
Sunrise 07:20 AM
Sunset 06:45 PM
Wind NW 29 km/h18 mph
Dew Point -0°C32°F
uv Index 2
Barometric Pressure 101.9 kPa30.09 in
POP 9% *
Humidity 56%
* POP = Probability of Precipitation. Data for 12:00 PM.