CA CA-121 Live Traffic Map
CA-121 Weather News
CA-121 DOT Weather Reports
CA-121 CA Live Traffic Chat Room
Report an AccidentCurrent CA-121 California Weather Conditions
These are the latest weather conditions reported from Napa, CA (in the middle of CA-121 California)
Weather near other cities along CA-121 California
Saturday 05:42 PM
63° F (Few Clouds)
Low : 63 ° F
High : 63 ° F
Pressure : 1017 hPa
Humidity : 81 %
Wind : 3.04 miles/hour
07:00 PM
60° F (Few Clouds)
Low : 60 ° F
High : 60 ° F
Pressure : 1017 hPa
Humidity : 86 %
Wind : 1.63 miles/hour
10:00 PM
59° F (Few Clouds)
Low : 58 ° F
High : 59 ° F
Pressure : 1017 hPa
Humidity : 88 %
Wind : 2.04 miles/hour
58° F (Few Clouds)
Low : 57 ° F
High : 58 ° F
Pressure : 1018 hPa
Humidity : 90 %
Wind : 3.78 miles/hour
04:00 AM
56° F (Scattered Clouds)
Low : 56 ° F
High : 56 ° F
Pressure : 1018 hPa
Humidity : 80 %
Wind : 3.83 miles/hour
07:00 AM
56° F (Broken Clouds)
Low : 56 ° F
High : 56 ° F
Pressure : 1019 hPa
Humidity : 73 %
Wind : 2.35 miles/hour
10:00 AM
71° F (Overcast Clouds)
Low : 71 ° F
High : 71 ° F
Pressure : 1020 hPa
Humidity : 45 %
Wind : 1.79 miles/hour
01:00 PM
82° F (Overcast Clouds)
Low : 82 ° F
High : 82 ° F
Pressure : 1018 hPa
Humidity : 22 %
Wind : 4.45 miles/hour
04:00 PM
82° F (Overcast Clouds)
Low : 82 ° F
High : 82 ° F
Pressure : 1016 hPa
Humidity : 34 %
Wind : 2.55 miles/hour
07:00 PM
65° F (Overcast Clouds)
Low : 65 ° F
High : 65 ° F
Pressure : 1017 hPa
Humidity : 65 %
Wind : 2.51 miles/hour
10:00 PM
62° F (Overcast Clouds)
Low : 62 ° F
High : 62 ° F
Pressure : 1018 hPa
Humidity : 65 %
Wind : 2.51 miles/hour
61° F (Overcast Clouds)
Low : 61 ° F
High : 61 ° F
Pressure : 1018 hPa
Humidity : 63 %
Wind : 2.91 miles/hour
04:00 AM
59° F (Overcast Clouds)
Low : 59 ° F
High : 59 ° F
Pressure : 1017 hPa
Humidity : 55 %
Wind : 2.37 miles/hour
07:00 AM
58° F (Broken Clouds)
Low : 58 ° F
High : 58 ° F
Pressure : 1018 hPa
Humidity : 60 %
Wind : 2.82 miles/hour
10:00 AM
73° F (Broken Clouds)
Low : 73 ° F
High : 73 ° F
Pressure : 1018 hPa
Humidity : 46 %
Wind : 2.42 miles/hour
01:00 PM
83° F (Broken Clouds)
Low : 83 ° F
High : 83 ° F
Pressure : 1017 hPa
Humidity : 36 %
Wind : 3.22 miles/hour
04:00 PM
83° F (Scattered Clouds)
Low : 83 ° F
High : 83 ° F
Pressure : 1015 hPa
Humidity : 45 %
Wind : 5.26 miles/hour
07:00 PM
67° F (Clear Sky)
Low : 67 ° F
High : 67 ° F
Pressure : 1015 hPa
Humidity : 70 %
Wind : 0.96 miles/hour
10:00 PM
64° F (Clear Sky)
Low : 64 ° F
High : 64 ° F
Pressure : 1016 hPa
Humidity : 78 %
Wind : 2.13 miles/hour
62° F (Few Clouds)
Low : 62 ° F
High : 62 ° F
Pressure : 1015 hPa
Humidity : 82 %
Wind : 1.88 miles/hour
04:00 AM
61° F (Few Clouds)
Low : 61 ° F
High : 61 ° F
Pressure : 1015 hPa
Humidity : 81 %
Wind : 3.29 miles/hour
07:00 AM
60° F (Clear Sky)
Low : 60 ° F
High : 60 ° F
Pressure : 1017 hPa
Humidity : 80 %
Wind : 2.71 miles/hour
10:00 AM
75° F (Clear Sky)
Low : 75 ° F
High : 75 ° F
Pressure : 1016 hPa
Humidity : 52 %
Wind : 2.46 miles/hour
01:00 PM
85° F (Clear Sky)
Low : 85 ° F
High : 85 ° F
Pressure : 1015 hPa
Humidity : 38 %
Wind : 1.57 miles/hour
04:00 PM
85° F (Clear Sky)
Low : 85 ° F
High : 85 ° F
Pressure : 1013 hPa
Humidity : 44 %
Wind : 3.76 miles/hour
07:00 PM
69° F (Clear Sky)
Low : 69 ° F
High : 69 ° F
Pressure : 1014 hPa
Humidity : 72 %
Wind : 0.98 miles/hour
10:00 PM
66° F (Clear Sky)
Low : 66 ° F
High : 66 ° F
Pressure : 1015 hPa
Humidity : 77 %
Wind : 3.4 miles/hour
64° F (Clear Sky)
Low : 64 ° F
High : 64 ° F
Pressure : 1016 hPa
Humidity : 81 %
Wind : 2.71 miles/hour
04:00 AM
62° F (Clear Sky)
Low : 62 ° F
High : 62 ° F
Pressure : 1016 hPa
Humidity : 83 %
Wind : 3.06 miles/hour
07:00 AM
61° F (Clear Sky)
Low : 61 ° F
High : 61 ° F
Pressure : 1017 hPa
Humidity : 81 %
Wind : 2.8 miles/hour
10:00 AM
77° F (Clear Sky)
Low : 77 ° F
High : 77 ° F
Pressure : 1018 hPa
Humidity : 53 %
Wind : 1.14 miles/hour
01:00 PM
86° F (Clear Sky)
Low : 86 ° F
High : 86 ° F
Pressure : 1017 hPa
Humidity : 39 %
Wind : 2.82 miles/hour
04:00 PM
85° F (Clear Sky)
Low : 85 ° F
High : 85 ° F
Pressure : 1016 hPa
Humidity : 43 %
Wind : 3.67 miles/hour
07:00 PM
70° F (Clear Sky)
Low : 70 ° F
High : 70 ° F
Pressure : 1017 hPa
Humidity : 68 %
Wind : 1.05 miles/hour
10:00 PM
67° F (Clear Sky)
Low : 67 ° F
High : 67 ° F
Pressure : 1018 hPa
Humidity : 73 %
Wind : 3.18 miles/hour
65° F (Clear Sky)
Low : 65 ° F
High : 65 ° F
Pressure : 1018 hPa
Humidity : 77 %
Wind : 3.29 miles/hour
04:00 AM
62° F (Clear Sky)
Low : 62 ° F
High : 62 ° F
Pressure : 1018 hPa
Humidity : 84 %
Wind : 2.93 miles/hour
07:00 AM
63° F (Clear Sky)
Low : 63 ° F
High : 63 ° F
Pressure : 1019 hPa
Humidity : 82 %
Wind : 2.82 miles/hour
10:00 AM
78° F (Clear Sky)
Low : 78 ° F
High : 78 ° F
Pressure : 1019 hPa
Humidity : 54 %
Wind : 2.04 miles/hour
01:00 PM
87° F (Clear Sky)
Low : 87 ° F
High : 87 ° F
Pressure : 1017 hPa
Humidity : 38 %
Wind : 1.79 miles/hour
04:00 PM
87° F (Clear Sky)
Low : 87 ° F
High : 87 ° F
Pressure : 1015 hPa
Humidity : 41 %
Wind : 3.91 miles/hour
Weather News Reports
-
Portion of Hwy 12, 121 in Sonoma closed due to flooding
- California
- Hwy
- source: Bing
- 45 views
- Feb 16, 2026 1:12pm
A portion of state Highway 12 and Highway 121 south of Sonoma is closed due to flooding Monday, according to Caltrans. Read More
-
Flooding closes section of Highway 12 / 121 near Sonoma
- California
- Hwy-12
- source: Bing
- 27 views
- Feb 16, 2026 11:25am
A portion of state Highway 12 and Highway 121 south of the city of Sonoma was closed due to flooding Monday, with reopening not expected until Wednesday. Read More
-
Sonoma Co.: Flooding Closes Portion Of Highway 12 And 121 Near Sonoma
- California
- Hwy-12
- source: Bing
- 20 views
- Feb 15, 2026 4:00pm
A portion of state Highway 12 and Highway 121 south of Sonoma is closed due to flooding Monday, according to Caltrans. Highway 121 is closed from Fremont Drive to its intersection with Highway 12. Read More
More results in our CA-121 California Archives
DOT Accident and Construction Reports
-
TYPE: Miscellaneous
-
TYPE: Accident Serious
Obstruction on roadway on I-505 N from CA-128 (I-505) to Road 29A (I-505).
Accident on I-505 N from Road 29A (I-505) to CR-27 (I-505).
CA CA-121 Motorcycle Accidents
CA CA-121 Truck Accidents
CA CA-121 Fatal Accidents
CA CA-121 DUI Related Accidents
CA CA-121 Car Accidents