What is today's weather forecast for Castle Lake, CA?

Today's forecast for Castle Lake shows a high of 42 degrees and a low of 25 degrees Fahrenheit. Sunny.

What is the 7-day weather forecast for Castle Lake, CA?

The 7-day forecast for Castle Lake shows highs from 42 to 58 degrees and lows from 25 to 34 degrees Fahrenheit.

How accurate is the Castle Lake weather forecast?

WeatherForYou provides highly accurate Castle Lake forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Castle Lake, CA Weather Forecast and Current Conditions

Current Conditions From Nearby Station

37°F
Feels Like 35°F

Humidity 69% Dew Point 28°F Wind W 3 MPH Gusts 8 Barometer 30.09 in.764.3 mm

Solar Rad 635 w/m2

Report from a MADIS/MESONET station 6.7 miles NNE of central Castle Lake
at 12:00 PM Thu, Oct 16, 2025

Current Conditions From Nearby Station

37°F
Feels Like 35°F

Humidity 69% Dew Point 28°F Wind W 3 MPH Gusts 8 Barometer 30.09 in.764.3 mm

Solar Rad 635 w/m2

Report from a MADIS/MESONET station 6.7 miles NNE of central Castle Lake
at 12:00 PM Thu, Oct 16, 2025

Point Forecast at a Glance

ThuOct 16

42°

25°

FriOct 17

52°

33°

SatOct 18

58°

34°

SunOct 19

56°

33°

MonOct 20

57°

33°

TueOct 21

56°

33°

WedOct 22

53°

32°

Week Ahead Summary

Variable temperatures through the week, ranging from 42°F to 58°F. Dry weather expected throughout the week.

Climate Context

This week's forecast shows temperatures running 12°F below the historical average for October. Normal highs for this period are around 65°F with lows around 36°F.

This Date in Weather History

1937 - An unlikely winter-like storm produced as much as ten inches of snow in Minnesota and Iowa.

Castle Lake 7 Day Weather Forecast Details

Thursday Oct 16

Day: Sunny. High near 42, with temperatures falling to around 40 in the afternoon. North northeast wind around 5 mph.

Night: Mostly clear. Low around 25, with temperatures rising to around 27 overnight. Wind chill values as low as 16. North wind 5 to 10 mph, with gusts as high as 25 mph.

Friday Oct 17

Day: Sunny. High near 52, with temperatures falling to around 49 in the afternoon. North wind 0 to 10 mph, with gusts as high as 20 mph.

Night: Mostly clear, with a low around 33. Wind chill values as low as 29. North northwest wind 0 to 5 mph, with gusts as high as 20 mph.

Saturday Oct 18

Day: Sunny, with a high near 58. West southwest wind 0 to 5 mph.

Night: Mostly clear, with a low around 34. West southwest wind 0 to 5 mph, with gusts as high as 20 mph.

Sunday Oct 19

Day: Sunny, with a high near 56. West southwest wind around 5 mph, with gusts as high as 20 mph.

Night: Mostly clear, with a low around 33. West southwest wind around 5 mph.

Monday Oct 20

Day: Sunny, with a high near 57. West southwest wind 0 to 5 mph.

Night: Mostly clear, with a low around 33. West southwest wind around 5 mph.

Tuesday Oct 21

Day: Sunny, with a high near 56. West wind around 5 mph.

Night: Partly cloudy, with a low around 33. West wind 0 to 5 mph.

Wednesday Oct 22

Day: Mostly sunny, with a high near 53. Northwest wind around 5 mph.

Night: Mostly clear, with a low around 32. North northwest wind 0 to 5 mph.

Sun & Moon Monthly

First Light 6:40 AM

Sunrise 7:07 AM

Sunset 6:19 PM

Last Light 6:45 PM

Moonrise 2:22 AM

Moonset 4:11 PM

Moon Phase

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