Newcastle, California 7 Day & Night Forecast & Conditions

Current Conditions

Maps Alerts Climate Index

Clear 96°F 36°C Heat Index: 93°F	Observed at: Newcastle, CA	Elevation: 100 ft | 30 m
	Last Updated: July 29, 5:30 PM Timezone: GMT -5/-4
	Sky Conditions: Clear	Temperature: 96°F | 36°C
	Pressure: 28.86 in | 977.3 mb	Dewpoint: 52°F | 11°C
	Humidity: 23%	Wind: WNW 7 mph | WNW 11 kph
	Feels Like: 93°F | 34°C	Visibility: 157.6 mi | 253.6 km
	Lat/Long: 38.8752 | -121.1361	Sunrise: 6:03 AM   Sunset: 8:18 PM

7 Day Graphical Forecast

Valid: 5:31 PM 7/29/2026

Today Clear 96 |67 °F 36 |19 °C 0% Chance Precipitation Thursday Clear 99 |69 °F 37 |20 °C 0% Chance Precipitation Friday Clear 101 |70 °F 38 |21 °C 0% Chance Precipitation Saturday Clear 102 |64 °F 39 |18 °C 0% Chance Precipitation Sunday Clear 103 |66 °F 40 |19 °C 0% Chance Precipitation Monday Clear 107 |67 °F 42 |20 °C 0% Chance Precipitation Tuesday Clear 110 |71 °F 43 |22 °C 0% Chance Precipitation

7 Hour Graphical Forecast

Valid: 5:31 PM 7/29/2026

5 PM Clear 96 °F 0% Chance Precipitation

6 PM Clear 95 °F 0% Chance Precipitation

7 PM Clear 93 °F 0% Chance Precipitation

8 PM Clear 88 °F 0% Chance Precipitation

9 PM Clear 82 °F 0% Chance Precipitation

10 PM Clear 78 °F 0% Chance Precipitation

11 PM Clear 76 °F 0% Chance Precipitation

7 Day Textual Forecast - with QPF, Max Wind, Humidity, Snowfall & UV Index

7 Day & Night Weather Forecast for Newcastle, CA - (Fahrenheit & Celsius) Valid: 5:31 PM 7/29/2026 Today Clear with a high near 96°F [36°C]. S wind to around 9 mph [14 kph], with gusts to near 14 mph [22 kph]. Dewpoint near 52°F [11°C] with humidity of 44%. Pressure around 28.86 in [977.3 mb]. UV Index: 7.95. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Tonight Clear with a low around 67°F [19°C]. S wind to around 9 mph [14 kph], with gusts to near 14 mph [22 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Clear with a high near 99°F [37°C]. S wind to around 9 mph [15 kph], with gusts to near 14 mph [23 kph]. Dewpoint near 52°F [11°C] with humidity of 44%. Pressure around 28.86 in [977.3 mb]. UV Index: 8.05. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Thursday Night Clear with a low around 69°F [20°C]. S wind to around 9 mph [15 kph], with gusts to near 14 mph [23 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Friday Clear with a high near 101°F [38°C]. S wind to around 9 mph [14 kph], with gusts to near 12 mph [19 kph]. Dewpoint near 52°F [11°C] with humidity of 34%. Pressure around 28.86 in [977.3 mb]. UV Index: 8.05. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Friday Night Clear with a low around 70°F [21°C]. S wind to around 9 mph [14 kph], with gusts to near 12 mph [19 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Saturday Clear with a high near 102°F [39°C]. S wind to around 7 mph [11 kph], with gusts to near 9 mph [14 kph]. Dewpoint near 52°F [11°C] with humidity of 32%. Pressure around 28.86 in [977.3 mb]. UV Index: 7.95. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Saturday Night Clear with a low around 64°F [18°C]. S wind to around 7 mph [11 kph], with gusts to near 9 mph [14 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Sunday Clear with a high near 103°F [40°C]. S wind to around 7 mph [11 kph], with gusts to near 10 mph [16 kph]. Dewpoint near 52°F [11°C] with humidity of 30%. Pressure around 28.86 in [977.3 mb]. UV Index: 7.95. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Sunday Night Clear with a low around 66°F [19°C]. S wind to around 7 mph [11 kph], with gusts to near 10 mph [16 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Monday Clear with a high near 107°F [42°C]. S wind to around 7 mph [11 kph], with gusts to near 9 mph [14 kph]. Dewpoint near 52°F [11°C] with humidity of 27%. Pressure around 28.86 in [977.3 mb]. UV Index: 7.8. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Monday Night Clear with a low around 67°F [20°C]. S wind to around 7 mph [11 kph], with gusts to near 9 mph [14 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Tuesday Clear with a high near 110°F [43°C]. SSW wind to around 8 mph [12 kph], with gusts to near 15 mph [25 kph]. Dewpoint near 52°F [11°C] with humidity of 19%. Pressure around 28.86 in [977.3 mb]. UV Index: 7.8. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm]. Tuesday Night Clear with a low around 71°F [22°C]. SSW wind to around 8 mph [12 kph], with gusts to near 15 mph [25 kph]. Chance of precipitation 0% with QPF of 0.00 in [0.0 mm].

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7 Day and Night - QPF Forecast for Newcastle, CA

Today: 0.0 mm | 0.00 in

Tonight: 0.0 mm | 0.00 in

Thursday: 0.0 mm | 0.00 in

Thursday Night: 0.0 mm | 0.00 in

Friday: 0.0 mm | 0.00 in

Friday Night: 0.0 mm | 0.00 in

Saturday: 0.0 mm | 0.00 in

Saturday Night: 0.0 mm | 0.00 in

Sunday: 0.0 mm | 0.00 in

Sunday Night: 0.0 mm | 0.00 in

Monday: 0.0 mm | 0.00 in

Monday Night: 0.0 mm | 0.00 in

Tuesday: 0.0 mm | 0.00 in

Tuesday Night: 0.0 mm | 0.00 in

7 Day and Night - Maximum Wind Speed Forecast for Newcastle, CA

Today: S @ 14 kph | 9 mph

Tonight: S @ 14 kph | 9 mph

Thursday: S @ 15 kph | 9 mph

Thursday Night: S @ 15 kph | 9 mph

Friday: S @ 14 kph | 9 mph

Friday Night: S @ 14 kph | 9 mph

Saturday: S @ 11 kph | 7 mph

Saturday Night: S @ 11 kph | 7 mph

Sunday: S @ 11 kph | 7 mph

Sunday Night: S @ 11 kph | 7 mph

Monday: S @ 11 kph | 7 mph

Monday Night: S @ 11 kph | 7 mph

Tuesday: SSW @ 12 kph | 8 mph

Tuesday Night: SSW @ 12 kph | 8 mph

7 Day and Night - Maximum Humidity Forecast for Newcastle, CA

Today: 44 %

Tonight: 44 %

Thursday: 44 %

Thursday Night: 44 %

Friday: 34 %

Friday Night: 34 %

Saturday: 32 %

Saturday Night: 32 %

Sunday: 30 %

Sunday Night: 30 %

Monday: 27 %

Monday Night: 27 %

Tuesday: 19 %

Tuesday Night: 19 %

7 Day and Night - Snowfall Totals Forecast for Newcastle, CA

Today: 0.0 cm | 0.00 in

Tonight: 0.0 cm | 0.00 in

Thursday: 0.0 cm | 0.00 in

Thursday Night: 0.0 cm | 0.00 in

Friday: 0.0 cm | 0.00 in

Friday Night: 0.0 cm | 0.00 in

Saturday: 0.0 cm | 0.00 in

Saturday Night: 0.0 cm | 0.00 in

Sunday: 0.0 cm | 0.00 in

Sunday Night: 0.0 cm | 0.00 in

Monday: 0.0 cm | 0.00 in

Monday Night: 0.0 cm | 0.00 in

Tuesday: 0.0 cm | 0.00 in

Tuesday Night: 0.0 cm | 0.00 in

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