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Harper, California Weather Forecast
Harper, California Weather
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Weather Forecast for Harper, California : Modoc County
Issued: 12:41 am PST Dec 18, 2025 Latitude: 41.2148912 Longitude: -120.9316338 View on Google Maps

MouseOver for Detail Forecast
Overnight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
30% chance of rain & snow on Overnight 40% chance of rain on Thursday 100% chance of rain on Friday 70% chance of rain & snow on Saturday Rain on Sunday Rain and Snow on Monday 70% chance of rain & snow on Tuesday 70% chance of rain & snow on Wednesday
Low: 37°F High: 51°F High: 48°F High: 48°F High: 49°F High: 45°F High: 46°F High: 44°F
Low: 37°F Low: 36°F Low: 37°F Low: 35°F Low: 30°F Low: 29°F  
Rain & Snow Rain Rain Rain & Snow Rain Rain and Snow Rain & Snow Rain & Snow
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Current Conditions at
ALTURAS - (KAAT)
34°
Cloudy
as of 12:55 AM PST
Rel. Humidity: 86%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
3 MPH
340° North
Cloud Level(s): Scattered at 8000ft, Solid Overcast at 9500ft
Current Conditions at
MT SHASTA - (KMHS)
39°
Cloudy
as of 12:56 AM PST
Rel. Humidity: 100%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Few at 300ft, Scattered at 6500ft, Solid Overcast at 8500ft
Current Conditions at
LAKEVIEW - (KLKV)
34°
Cloudy
as of 12:53 AM PST
Rel. Humidity: 86%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Solid Overcast at 9500ft
Current Conditions at
KLAMATH FALLS - (KLMT)
34°
Cloudy
as of 12:53 AM PST
Rel. Humidity: 86%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 30.11 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Broken at 7500ft, Solid Overcast at 9000ft
30% chance of rain & snow Overnight Overnight... A 30 percent chance of rain before 2am. Snow level 6100 feet rising to 7900 feet. Mostly cloudy, with a steady temperature around 37. South southeast wind around 6 mph.

40% chance of rain Thursday Thursday... A 40 percent chance of rain, mainly between 10am and 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 51. Breezy, with a southwest wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 36 mph.

50% chance of rain & snow Thursday Night Thursday Night... A slight chance of rain before 7pm, then a chance of rain after 10pm. Snow level 7100 feet. Mostly cloudy, with a low around 37. Breezy, with a south southwest wind 14 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 50%.

100% chance of rain Friday Friday... Rain. High near 48. Southwest wind 13 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

100% chance of rain & snow Friday Night Friday Night... Rain, mainly before 4am. Snow level 7000 feet lowering to 5900 feet after midnight . Low around 36. Southwest wind 11 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

70% chance of rain & snow Saturday Saturday... Rain likely, mainly after 10am. Snow level 5300 feet rising to 6300 feet in the afternoon. Mostly cloudy, with a high near 48. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

90% chance of rain & snow Saturday Night Saturday Night... Rain. Snow level 6600 feet rising to 7200 feet after midnight. Low around 37. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

Rain on Sunday Sunday... Rain. Cloudy, with a high near 49.

Rain and Snow on Sunday Night Sunday Night... Rain. Snow level 7300 feet. Cloudy, with a low around 35.

Rain and Snow on Monday Monday... Rain. Snow level 6400 feet. Mostly cloudy, with a high near 45.

70% chance of rain & snow Monday Night Monday Night... Rain likely. Snow level 5800 feet. Mostly cloudy, with a low around 30.

70% chance of rain & snow Tuesday Tuesday... Rain likely. Snow level 5600 feet. Mostly cloudy, with a high near 46.

70% chance of rain & snow Tuesday Night Tuesday Night... Rain likely. Snow level 5600 feet. Mostly cloudy, with a low around 29.

70% chance of rain & snow Wednesday Wednesday... Rain likely. Snow level 5300 feet. Mostly cloudy, with a high near 44.

Current Radar Image


Sun Almanac for Harper, California
Sunrise: 07:25 AM
Sunset: 4:37 PM
Civil Sunrise:06:53 AM
Civil Sunset: 5:08 PM
Nautical Sunrise: 06:18 AM
Nautical Sunset: 5:43 PM
Astro Sunrise: 05:45 AM
Astro Sunset: 6:16 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.