642
FPUS56 KSTO 152253
ZFPSTO
INTERIOR NORTHERN CALIFORNIA ZONE FORECASTS FOR CALIFORNIA
NATIONAL WEATHER SERVICE SACRAMENTO CA
353 PM PDT THU MAY 15 2025
SPOT TEMPERATURES AND PROBABILITIES OF MEASURABLE PRECIPITATION
ARE FOR TONIGHT, FRIDAY, FRIDAY NIGHT, AND SATURDAY.
CAZ013-161100-
SHASTA LAKE AREA / NORTHERN SHASTA COUNTY-
INCLUDING THE CITY OF SHASTA DAM
353 PM PDT THU MAY 15 2025
TONIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. AT HIGHER
ELEVATIONS, A SLIGHT CHANCE OF RAIN SHOWERS LATE IN THE EVENING.
LOWS 39 TO 54 HIGHER ELEVATIONS...49 TO 58 LOWER ELEVATIONS.
PREVAILING NORTHWEST WINDS UP TO 10 MPH.
FRIDAY...SUNNY. HIGHS 66 TO 81 HIGHER ELEVATIONS
78 TO
86 LOWER ELEVATIONS. PREVAILING NORTH WINDS UP TO 10 MPH.
FRIDAY NIGHT...MOSTLY CLOUDY. LOWS 42 TO 56 HIGHER ELEVATIONS
51 TO 59 LOWER ELEVATIONS. LIGHT WINDS.
SATURDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 57 TO 72 HIGHER
ELEVATIONS...70 TO 78 LOWER ELEVATIONS. PREVAILING NORTHWEST
WINDS UP TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. COLDER. LOWS 34 TO 49 HIGHER
ELEVATIONS...44 TO 53 LOWER ELEVATIONS. PREVAILING NORTHWEST
WINDS UP TO 15 MPH.
SUNDAY
SUNNY. HIGHS 60 TO 75.
SUNDAY NIGHT
CLEAR. LOWS 37 TO 52.
MONDAY THROUGH THURSDAY
CLEAR. HIGHS 72 TO 87. LOWS 41 TO 56.
TEMPERATURE / PRECIPITATION
SHASTA DAM 57 83 57 76 / 10 0 0 10
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CAZ014-161100-
BURNEY BASIN / EASTERN SHASTA COUNTY-
INCLUDING THE CITY OF BURNEY
353 PM PDT THU MAY 15 2025
TONIGHT
MOSTLY CLOUDY. LOWS 36 TO 46. PREVAILING NORTHWEST
WINDS UP TO 10 MPH IN THE EVENING BECOMING LIGHT.
FRIDAY
SUNNY. HIGHS 63 TO 77. LIGHT WINDS.
FRIDAY NIGHT
MOSTLY CLOUDY. LOWS 39 TO 50. LIGHT WINDS.
SATURDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 54 TO 67. PREVAILING
NORTHWEST WINDS UP TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. COLDER. LOWS 29 TO 39. PREVAILING
NORTH WINDS UP TO 15 MPH.
SUNDAY
SUNNY. HIGHS 56 TO 68.
SUNDAY NIGHT
CLEAR. LOWS 29 TO 39.
MONDAY THROUGH THURSDAY
CLEAR. HIGHS 66 TO 81. LOWS 31 TO 46.
TEMPERATURE / PRECIPITATION
BURNEY 42 73 46 63 / 20 0 10 50
=
CAZ015-161100-
NORTHERN SACRAMENTO VALLEY-
INCLUDING THE CITIES OF REDDING AND RED BLUFF
353 PM PDT THU MAY 15 2025
TONIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS 54 TO
60. NORTHWEST WINDS UP TO 10 MPH WITH GUSTS TO AROUND 20 MPH.
FRIDAY
SUNNY. HIGHS 82 TO 88. NORTH WINDS 10 TO 15 MPH WITH
GUSTS TO AROUND 25 MPH.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS AROUND 58. NORTHWEST WINDS UP TO 10 MPH.
SATURDAY
PARTLY CLOUDY IN THE MORNING, THEN PARTLY CLOUDY WITH
A SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. HIGHS 75 TO 81.
NORTHWEST WINDS UP TO 15 MPH. GUSTS UP TO 25 MPH IN THE
AFTERNOON.
SATURDAY NIGHT
CLEAR. LOWS 50 TO 55. NORTHWEST WINDS 10 TO
15 MPH WITH GUSTS TO AROUND 30 MPH.
SUNDAY
SUNNY. HIGHS 77 TO 82.
SUNDAY NIGHT
CLEAR. LOWS 51 TO 57.
MONDAY THROUGH THURSDAY
CLEAR. HIGHS 87 TO 95. LOWS 52 TO 62.
TEMPERATURE / PRECIPITATION
REDDING 56 86 56 79 / 10 0 0 20
RED BLUFF 58 88 59 81 / 10 0 0 10
=
CAZ016-161100-
CENTRAL SACRAMENTO VALLEY-
INCLUDING THE CITIES OF CHICO, OROVILLE, AND MARYSVILLE/YUBA CITY
353 PM PDT THU MAY 15 2025
TONIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS AROUND 58. SOUTH WINDS UP TO 10 MPH SHIFTING TO THE
NORTH AFTER MIDNIGHT.
FRIDAY
MOSTLY SUNNY. HIGHS 83 TO 88. NORTHWEST WINDS UP TO
10 MPH WITH GUSTS TO AROUND 25 MPH.
FRIDAY NIGHT
MOSTLY CLEAR IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS AROUND 57. WEST WINDS UP TO 10 MPH SHIFTING TO THE
SOUTH AFTER MIDNIGHT.
SATURDAY
MOSTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS
76 TO 81. SOUTHEAST WINDS UP TO 10 MPH WITH GUSTS TO AROUND
20 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. LOWS 52 TO 57. NORTH WINDS 10 TO
15 MPH WITH GUSTS TO AROUND 25 MPH.
SUNDAY
SUNNY. HIGHS 78 TO 83.
SUNDAY NIGHT
CLEAR. LOWS 54 TO 60.
MONDAY THROUGH THURSDAY
CLEAR. HIGHS 86 TO 96. LOWS 54 TO 63.
TEMPERATURE / PRECIPITATION
CHICO 59 87 59 80 / 10 0 0 10
OROVILLE 58 86 58 78 / 10 0 0 10
MARYSVILLE/YUBA CITY 57 87 57 79 / 0 0 0 10
=
CAZ017-161100-
SOUTHERN SACRAMENTO VALLEY-
INCLUDING THE CITY OF SACRAMENTO
353 PM PDT THU MAY 15 2025
TONIGHT
MOSTLY CLEAR IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS 53 TO 59. SOUTHWEST WINDS UP TO 10 MPH WITH GUSTS TO
AROUND 20 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS 81 TO 88. NORTHWEST WINDS UP TO
10 MPH WITH GUSTS TO AROUND 20 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS AROUND 55. SOUTHWEST WINDS UP
TO 10 MPH WITH GUSTS TO AROUND 20 MPH.
SATURDAY
MOSTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS
74 TO 81. SOUTHWEST WINDS 10 TO 15 MPH.
SATURDAY NIGHT
CLEAR. LOWS 49 TO 57. SOUTHWEST WINDS 10 TO
15 MPH WITH GUSTS TO AROUND 25 MPH.
SUNDAY
SUNNY. HIGHS 77 TO 83.
SUNDAY NIGHT
CLEAR. LOWS 52 TO 62.
MONDAY THROUGH THURSDAY
CLEAR. HIGHS 87 TO 97. LOWS 53 TO 63.
TEMPERATURE / PRECIPITATION
SACRAMENTO 57 87 56 79 / 0 0 0 0
SAC EXEC AIRPORT 55 86 54 79 / 0 0 0 0
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CAZ018-161100-
CARQUINEZ STRAIT AND DELTA-
INCLUDING THE CITY OF FAIRFIELD/SUISUN
353 PM PDT THU MAY 15 2025
TONIGHT
MOSTLY CLEAR IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS AROUND 54. WEST WINDS 10 TO 15 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS 78 TO 84. WEST WINDS UP TO 15 MPH.
FRIDAY NIGHT
CLEAR IN THE EVENING THEN BECOMING PARTLY CLOUDY.
LOWS AROUND 54. SOUTHWEST WINDS 10 TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
SATURDAY
MOSTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS
72 TO 78. SOUTHWEST WINDS 10 TO 20 MPH WITH GUSTS TO AROUND
30 MPH.
SATURDAY NIGHT
CLEAR, BREEZY. LOWS AROUND 52. WEST WINDS 10 TO
25 MPH DECREASING TO 10 TO 15 MPH AFTER MIDNIGHT.
SUNDAY
SUNNY. HIGHS 75 TO 81.
SUNDAY NIGHT
CLEAR. LOWS 55 TO 61.
MONDAY THROUGH THURSDAY
CLEAR. HIGHS 85 TO 91. LOWS 55 TO 61.
TEMPERATURE / PRECIPITATION
FAIRFIELD/SUISUN 52 84 53 78 / 0 0 0 0
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CAZ019-161100-
NORTHERN SAN JOAQUIN VALLEY-
INCLUDING THE CITIES OF STOCKTON AND MODESTO
353 PM PDT THU MAY 15 2025
TONIGHT
MOSTLY CLEAR IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS 52 TO 60. NORTHWEST WINDS UP TO 15 MPH.
FRIDAY
MOSTLY SUNNY. HIGHS 79 TO 87. NORTHWEST WINDS UP TO
10 MPH WITH GUSTS TO AROUND 20 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 51 TO 58. WEST WINDS UP TO
15 MPH.
SATURDAY
MOSTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS
68 TO 78. WEST WINDS UP TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
SATURDAY NIGHT
CLEAR. LOWS 47 TO 53. WEST WINDS UP TO 15 MPH
WITH GUSTS TO AROUND 30 MPH.
SUNDAY
SUNNY. HIGHS 74 TO 82.
SUNDAY NIGHT
CLEAR. LOWS 51 TO 61.
MONDAY THROUGH THURSDAY
CLEAR. HIGHS 84 TO 94. LOWS 52 TO 62.
TEMPERATURE / PRECIPITATION
STOCKTON 53 87 54 78 / 0 0 0 0
MODESTO 58 87 57 78 / 0 0 0 0
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CAZ063-161100-
MOUNTAINS SOUTHWESTERN SHASTA COUNTY TO WESTERN COLUSA COUNTY-
INCLUDING THE CITY OF ALDER SPRINGS
353 PM PDT THU MAY 15 2025
TONIGHT
MOSTLY CLOUDY IN THE EVENING THEN CLEARING. LOWS 40 TO
55 HIGHER ELEVATIONS...52 TO 60 LOWER ELEVATIONS. PREVAILING
NORTHWEST WINDS 5 TO 15 MPH WITH GUSTS TO AROUND 30 MPH.
FRIDAY...MOSTLY SUNNY. HIGHS 60 TO 75 HIGHER ELEVATIONS
78 TO
83 LOWER ELEVATIONS. PREVAILING NORTH WINDS UP TO 10 MPH WITH
GUSTS TO AROUND 25 MPH.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS 40 TO 55 HIGHER ELEVATIONS...53 TO 59 LOWER
ELEVATIONS. PREVAILING WEST WINDS UP TO 15 MPH.
SATURDAY
PARTLY CLOUDY IN THE MORNING THEN CLEARING. HIGHS
52 TO 67 HIGHER ELEVATIONS...69 TO 77 LOWER ELEVATIONS.
PREVAILING NORTHWEST WINDS 5 TO 15 MPH WITH GUSTS TO AROUND
30 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. COLDER. LOWS 35 TO 50 HIGHER
ELEVATIONS...47 TO 53 LOWER ELEVATIONS. PREVAILING NORTHWEST
WINDS 10 TO 20 MPH WITH GUSTS TO AROUND 40 MPH.
SUNDAY
SUNNY, WARMER. HIGHS 59 TO 74.
SUNDAY NIGHT
CLEAR. LOWS 41 TO 56.
MONDAY THROUGH THURSDAY
CLEAR. HIGHS 70 TO 85. LOWS 45 TO 60.
TEMPERATURE / PRECIPITATION
ALDER SPRINGS 49 68 47 60 / 10 0 0 10
=
CAZ066-161100-
NORTHEAST FOOTHILLS/SACRAMENTO VALLEY-
INCLUDING THE CITY OF PARADISE
353 PM PDT THU MAY 15 2025
TONIGHT
MOSTLY CLOUDY. LOWS 50 TO 60. LIGHT WINDS.
FRIDAY
SUNNY. HIGHS 71 TO 85. LIGHT WINDS BECOMING WEST UP TO
10 MPH IN THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS 50 TO 59. LIGHT WINDS.
SATURDAY
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 61 TO 73 HIGHER
ELEVATIONS...68 TO 76 LOWER ELEVATIONS. PREVAILING SOUTHWEST
WINDS UP TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. COLDER. LOWS 44 TO 54. PREVAILING
NORTHWEST WINDS UP TO 10 MPH SHIFTING TO THE NORTH AFTER
MIDNIGHT. GUSTS UP TO 25 MPH.
SUNDAY
SUNNY. HIGHS 66 TO 78.
SUNDAY NIGHT
CLEAR. LOWS 46 TO 56.
MONDAY THROUGH THURSDAY
CLEAR. HIGHS 76 TO 91. LOWS 48 TO 63.
TEMPERATURE / PRECIPITATION
PARADISE 58 77 56 69 / 10 0 0 20
=
CAZ067-161100-
MOTHERLODE-
INCLUDING THE CITIES OF GRASS VALLEY AND JACKSON
353 PM PDT THU MAY 15 2025
TONIGHT
MOSTLY CLEAR IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS 52 TO 58. LIGHT WINDS.
FRIDAY
MOSTLY SUNNY. HIGHS 71 TO 83. PREVAILING WEST WINDS UP
TO 10 MPH.
FRIDAY NIGHT
MOSTLY CLEAR. LOWS 50 TO 56. PREVAILING WEST
WINDS UP TO 10 MPH IN THE EVENING BECOMING LIGHT.
SATURDAY
MOSTLY CLOUDY IN THE MORNING, THEN PARTLY CLOUDY WITH
A SLIGHT CHANCE OF RAIN SHOWERS IN THE AFTERNOON. HIGHS 61 TO 75.
PREVAILING SOUTH WINDS UP TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. A SLIGHT CHANCE OF RAIN SHOWERS
IN THE EVENING. LOWS 45 TO 51. PREVAILING SOUTHWEST WINDS UP TO
10 MPH IN THE EVENING BECOMING LIGHT.
SUNDAY
SUNNY. HIGHS 66 TO 78.
SUNDAY NIGHT
CLEAR. LOWS 47 TO 53.
MONDAY THROUGH THURSDAY
CLEAR. HIGHS 76 TO 91. LOWS 47 TO 61.
TEMPERATURE / PRECIPITATION
GRASS VALLEY 52 75 51 66 / 10 0 0 20
JACKSON 54 79 51 71 / 0 0 0 10
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CAZ068-161100-
WESTERN PLUMAS COUNTY/LASSEN PARK-
INCLUDING THE CITIES OF CHESTER AND QUINCY
353 PM PDT THU MAY 15 2025
TONIGHT
MOSTLY CLOUDY. LOWS 37 TO 52. PREVAILING WEST WINDS UP
TO 10 MPH IN THE EVENING BECOMING LIGHT.
FRIDAY...MOSTLY SUNNY. HIGHS 54 TO 69 HIGHER ELEVATIONS
61 TO
76 LOWER ELEVATIONS. LIGHT WINDS BECOMING WEST UP TO 10 MPH IN
THE AFTERNOON.
FRIDAY NIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS 37 TO 52. PREVAILING SOUTHWEST WINDS UP TO 10 MPH.
SATURDAY
MOSTLY CLOUDY. A CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 44 TO 59 HIGHER
ELEVATIONS...51 TO 66 LOWER ELEVATIONS. PREVAILING WEST WINDS UP
TO 10 MPH.
SATURDAY NIGHT
MOSTLY CLEAR. A SLIGHT CHANCE OF RAIN SHOWERS
IN THE EVENING. COLDER. LOWS 29 TO 44. SNOW LEVEL 6500 FEET.
PREVAILING WEST WINDS UP TO 10 MPH SHIFTING TO THE NORTH AFTER
MIDNIGHT.
SUNDAY
SUNNY, WARMER. HIGHS 52 TO 67.
SUNDAY NIGHT
CLEAR. LOWS 32 TO 47.
MONDAY THROUGH THURSDAY
CLEAR. HIGHS 64 TO 79. LOWS 37 TO 52.
TEMPERATURE / PRECIPITATION
QUINCY 44 77 46 64 / 10 10 0 50
CHESTER 39 72 41 60 / 10 0 10 60
=
CAZ069-161100-
WEST SLOPE NORTHERN SIERRA NEVADA-
INCLUDING THE CITY OF BLUE CANYON
353 PM PDT THU MAY 15 2025
TONIGHT
PARTLY CLOUDY IN THE EVENING THEN BECOMING MOSTLY
CLOUDY. LOWS 34 TO 49 HIGHER ELEVATIONS...47 TO 57 LOWER
ELEVATIONS. PREVAILING WEST WINDS UP TO 10 MPH WITH GUSTS TO
AROUND 25 MPH IN THE EVENING BECOMING LIGHT.
FRIDAY...MOSTLY SUNNY. HIGHS 52 TO 67 HIGHER ELEVATIONS
66 TO
76 LOWER ELEVATIONS. LIGHT WINDS BECOMING WEST UP TO 10 MPH IN
THE AFTERNOON.
FRIDAY NIGHT...PARTLY CLOUDY. LOWS 34 TO 49 HIGHER ELEVATIONS
47 TO 55 LOWER ELEVATIONS. PREVAILING WEST WINDS UP TO 10 MPH IN
THE EVENING BECOMING LIGHT.
SATURDAY
MOSTLY CLOUDY. A SLIGHT CHANCE OF RAIN SHOWERS IN THE
MORNING, THEN A CHANCE OF RAIN SHOWERS AND A SLIGHT CHANCE OF
THUNDERSTORMS IN THE AFTERNOON. HIGHS 42 TO 57 HIGHER
ELEVATIONS...55 TO 65 LOWER ELEVATIONS. SNOW LEVEL ABOVE
8000 FEET. PREVAILING SOUTHWEST WINDS UP TO 15 MPH WITH GUSTS TO
AROUND 40 MPH. OVER RIDGES, PREVAILING SOUTHWEST WINDS 10 TO
20 MPH INCREASING TO 20 TO 30 MPH WITH GUSTS TO AROUND 45 MPH IN
THE AFTERNOON.
SATURDAY NIGHT
MOSTLY CLOUDY WITH A CHANCE OF RAIN AND SNOW
SHOWERS IN THE EVENING, THEN MOSTLY CLEAR AFTER MIDNIGHT. COLDER.
LOWS 27 TO 42 HIGHER ELEVATIONS...40 TO 49 LOWER ELEVATIONS. SNOW
LEVEL 7500 FEET. PREVAILING WEST WINDS UP TO 10 MPH WITH GUSTS TO
AROUND 30 MPH SHIFTING TO THE NORTHWEST AFTER MIDNIGHT. OVER
RIDGES, PREVAILING WEST WINDS 10 TO 25 MPH DECREASING TO 5 TO
15 MPH AFTER MIDNIGHT.
SUNDAY
MOSTLY SUNNY. WARMER. HIGHS 51 TO 66.
SUNDAY NIGHT
CLEAR. LOWS 32 TO 47.
MONDAY THROUGH THURSDAY
CLEAR. HIGHS 63 TO 78. LOWS 37 TO 52.
TEMPERATURE / PRECIPITATION
BLUE CANYON 50 66 49 55 / 10 10 0 30
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