Current Weather Forecast for Castaic

CA 91310  |   11:03am

Weather Conditions

82°

Feels Like 82°

Sunny

56° 96° EXTREME HEAT

EXTREME HEAT

5

UV Index

Good

Air Quality

NE 3 mph

Wind

0 in

rain

Today

Wed 3/18

96°

Highest Temperature

Sunny. Near record high temperatures. High 96F. ENE winds shifting to SW at 10 to 20 mph.

Tonight

Wed 3/18

63°

Lowest Temperature

Clear skies. Low 63F. Winds N at 5 to 10 mph.

Tomorrow

Thu 3/19

99°

Highest Temperature

A mainly sunny sky. Near record high temperatures. High 99F. NNE winds shifting to SW at 10 to 15 mph.

Next 12 Hours Next 7 Days

Next 12 Hours Forecast in Castaic

Hourly Weather Forecast & Temperature

12PM

88°

Feels Like 88°

EXTREME HEAT

Sunny

E 5 mph

Wind

1016 mb

Pressure

22%

Humidity

6

UV Index

10mi

Visibility

0%

Cloud Cover

1PM

91°

Feels Like 91°

EXTREME HEAT

Sunny

S 7 mph

Wind

1016 mb

Pressure

20%

Humidity

7

UV Index

10mi

Visibility

0%

Cloud Cover

2PM

92°

Feels Like 92°

EXTREME HEAT

Sunny

SW 8 mph

Wind

1015 mb

Pressure

20%

Humidity

6

UV Index

10mi

Visibility

0%

Cloud Cover

3PM

93°

Feels Like 93°

EXTREME HEAT

Sunny

SW 13 mph

Wind

1015 mb

Pressure

20%

Humidity

5

UV Index

10mi

Visibility

0%

Cloud Cover

4PM

93°

Feels Like 93°

EXTREME HEAT

Sunny

SW 14 mph

Wind

1014 mb

Pressure

22%

Humidity

3

UV Index

10mi

Visibility

0%

Cloud Cover

5PM

89°

Feels Like 89°

EXTREME HEAT

Sunny

WSW 13 mph

Wind

1014 mb

Pressure

25%

Humidity

1

UV Index

10mi

Visibility

1%

Cloud Cover

6PM

86°

Feels Like 86°

EXTREME HEAT

Sunny

WSW 11 mph

Wind

1015 mb

Pressure

28%

Humidity

0

UV Index

10mi

Visibility

0%

Cloud Cover

7PM

80°

Feels Like 80°

EXTREME HEAT

Sunny

W 8 mph

Wind

1015 mb

Pressure

34%

Humidity

0

UV Index

10mi

Visibility

0%

Cloud Cover

8PM

75°

Feels Like 75°

EXTREME HEAT

Clear

NNW 5 mph

Wind

1016 mb

Pressure

41%

Humidity

0

UV Index

10mi

Visibility

0%

Cloud Cover

9PM

73°

Feels Like 73°

EXTREME HEAT

Clear

NNE 5 mph

Wind

1017 mb

Pressure

45%

Humidity

0

UV Index

10mi

Visibility

0%

Cloud Cover

10PM

72°

Feels Like 72°

EXTREME HEAT

Clear

NNE 5 mph

Wind

1017 mb

Pressure

46%

Humidity

0

UV Index

10mi

Visibility

0%

Cloud Cover

11PM

70°

Feels Like 70°

EXTREME HEAT

Clear

NNE 6 mph

Wind

1017 mb

Pressure

47%

Humidity

0

UV Index

10mi

Visibility

0%

Cloud Cover

Wed 3/18

Wed

56°

96°

EXTREME HEAT

Sunshine. Highs in the mid 90s and lows in the low 60s.

96°

Feels Like

SW 14 mph

Wind

23%

Humidity

7

UV Index

7:00 AM

Sunrise

7:04 PM

Sunset

Thu 3/19

Thu

63°

99°

EXTREME HEAT

Mainly sunny. Highs in the upper 90s and lows in the mid 60s.

99°

Feels Like

NNE 12 mph

Wind

26%

Humidity

7

UV Index

6:59 AM

Sunrise

7:05 PM

Sunset

Fri 3/20

Fri

64°

97°

EXTREME HEAT

Mainly sunny. Highs in the upper 90s and lows in the low 60s.

97°

Feels Like

SSW 14 mph

Wind

25%

Humidity

7

UV Index

6:58 AM

Sunrise

7:06 PM

Sunset

Sat 3/21

Sat

61°

88°

Partly cloudy. Highs in the upper 80s and lows in the low 60s.

88°

Feels Like

SSW 13 mph

Wind

31%

Humidity

6

UV Index

6:56 AM

Sunrise

7:07 PM

Sunset

Sun 3/22

Sun

61°

89°

Mainly sunny. Highs in the upper 80s and lows in the low 60s.

89°

Feels Like

N 10 mph

Wind

32%

Humidity

7

UV Index

6:55 AM

Sunrise

7:07 PM

Sunset

Mon 3/23

Mon

61°

90°

Mostly sunny. Highs in the low 90s and lows in the low 60s.

90°

Feels Like

NE 10 mph

Wind

28%

Humidity

7

UV Index

6:53 AM

Sunrise

7:08 PM

Sunset

Tue 3/24

Tue

61°

90°

Mainly sunny. Highs in the low 90s and lows in the low 60s.

90°

Feels Like

ESE 12 mph

Wind

30%

Humidity

7

UV Index

6:52 AM

Sunrise

7:09 PM

Sunset

Wed 3/25

Wed

60°

89°

Sunny. Highs in the upper 80s and lows in the low 60s.

89°

Feels Like

NE 11 mph

Wind

30%

Humidity

7

UV Index

6:51 AM

Sunrise

7:10 PM

Sunset

Need to see beyond 12 Hours?

Find more forecast on the FREE FOX WEATHER App

GO TO APP STORE

Latest Stories from California

Historic heat wave breaks records across Southwest as Extreme Heat Warnings persist for millions

An unprecedented spring heat wave has begun breaking records in the Southwest, as Extreme Heat Warnings and Heat Advisories stretch across the region, encompassing nearly 40 million people.

Southwest facing record heat spring temperatures as East returns to more chilly conditions, snow

The Southwestern U.S. is about to see potential record-breaking heat for March this weekend, as the East begins to cool down after recent unseasonable warmth.

Allergy season is worse than ever. Here are the 10 worst allergy capitals in the US for 2026

Allergy sufferers in the U.S. might've felt it for a while, but a new report shows that pollen allergy season is more intense and longer-lasting than ever.

See when and where rare superblooms are happening with this interactive map

A newly released superbloom forecast is giving people the opportunity to see when and where blooms will be at their best in California.

Load More Stories