Saint Helena, CA Hourly Weather

Napa County7:53 PM PDT38.51°N, 122.47°WElevation 253 ft
Coastal Flood Advisory until 3:00 PM Thu

Next 48 hours

7 PM 10 PM Sun Oct 25 1 AM 4 AM 7 AM 10 AM 1 PM 4 PM 7 PM 10 PM Mon Oct 26 1 AM 4 AM 7 AM 10 AM 1 PM 4 PM 45° 50° 55° 60° 65° 70° 75° %
TemperatureFeels likeChance of precipitationNight
Saturday, October 245 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds
7 PM Clear 66° 66° 0% 0.00 in Calm 52% 48° 1%
8 PM Clear 59° 59° 0% 0.00 in Calm 61% 45° 2%
9 PM Mostly Clear 56° 56° 0% 0.00 in Calm 64% 44° 10%
10 PM Clear 54° 54° 0% 0.00 in Calm 65% 43° 5%
11 PM Mostly Clear 52° 52° 0% 0.00 in Calm 68% 42° 10%
Sunday, October 2524 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds
12 AM Mostly Clear 51° 51° 0% 0.00 in Calm 71% 42° 21%
1 AM Partly Cloudy 50° 50° 0% 0.00 in Calm 72% 41° 42%
2 AM Partly Cloudy 49° 49° 0% 0.00 in Calm 73% 40° 43%
3 AM Partly Cloudy 47° 47° 0% 0.00 in Calm 75% 40° 38%
4 AM Partly Cloudy 46° 46° 0% 0.00 in Calm 77% 40° 47%
5 AM Partly Cloudy 46° 46° 0% 0.00 in Calm 76% 39° 47%
6 AM Mostly Sunny 45° 45° 0% 0.00 in Calm 77% 38° 40%
7 AM Mostly Sunny 44° 44° 0% 0.00 in Calm 82% 39° 50%
8 AM Mostly Sunny 44° 45° 0% 0.00 in NNE 1 82% 39° 46%
9 AM Partly Sunny 50° 50° 0% 0.00 in ENE 2 75% 42° 59%
10 AM Partly Sunny 57° 57° 0% 0.00 in ESE 1 65% 45° 64%
11 AM Partly Sunny 62° 62° 0% 0.00 in SE 1 58% 47° 63%
12 PM Partly Sunny 67° 67° 0% 0.00 in SE 1 52% 49° 60%
1 PM Partly Sunny 69° 69° 0% 0.00 in SE 1 G7 48% 49° 58%
2 PM Partly Sunny 71° 71° 0% 0.00 in SSE 1 G8 46% 49° 64%
3 PM Mostly Cloudy 72° 73° 0% 0.00 in S 2 G9 46% 50° 73%
4 PM Partly Sunny 71° 71° 0% 0.00 in SSW 2 G9 46% 49° 59%
5 PM Mostly Cloudy 71° 71° 0% 0.00 in WSW 2 G9 46% 49° 81%
6 PM Mostly Cloudy 67° 67° 0% 0.00 in WSW 1 55% 51° 83%
7 PM Mostly Cloudy 61° 61° 0% 0.00 in Calm 63% 49° 77%
8 PM Mostly Cloudy 58° 58° 0% 0.00 in Calm 71% 49° 67%
9 PM Mostly Cloudy 55° 55° 0% 0.00 in Calm 77% 48° 65%
10 PM Mostly Clear 53° 53° 0% 0.00 in Calm 81% 47° 18%
11 PM Mostly Clear 51° 51° 0% 0.00 in Calm 85% 46° 25%
Monday, October 2624 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds
12 AM Mostly Clear 49° 49° 0% 0.00 in Calm 90% 46° 25%
1 AM Patchy Fog 47° 47° 0% 0.00 in Calm 95% 46° 25%
2 AM Areas Of Fog 45° 45° 0% 0.00 in Calm 97% 44° 42%
3 AM Areas Of Fog 44° 44° 0% 0.00 in Calm 100% 44° 42%
4 AM Areas Of Fog 44° 44° 1% 0.00 in Calm 100% 44° 42%
5 AM Areas Of Fog 43° 43° 2% 0.00 in W 1 100% 43° 67%
6 AM Areas Of Fog 43° 43° 2% 0.00 in W 1 100% 43° 67%
7 AM Areas Of Fog 43° 43° 2% 0.00 in W 1 100% 43° 67%
8 AM Mostly Sunny 44° 44° 2% 0.00 in W 2 100% 44° 41%
9 AM Mostly Sunny 48° 48° 2% 0.00 in W 2 97% 47° 41%
10 AM Mostly Sunny 53° 53° 2% 0.00 in W 2 93% 51° 41%
11 AM Sunny 58° 59° 1% 0.00 in W 5 G10 87% 55° 17%
12 PM Sunny 62° 62° 1% 0.00 in W 5 G10 80% 56° 17%
1 PM Sunny 65° 65° 1% 0.00 in W 5 G10 73% 56° 17%
2 PM Sunny 67° 67° 1% 0.00 in W 6 G16 66% 55° 15%
3 PM Sunny 68° 68° 1% 0.00 in W 6 G16 60% 54° 15%
4 PM Sunny 68° 68° 1% 0.00 in W 6 G16 57% 52° 15%
5 PM Sunny 66° 66° 0% 0.00 in W 5 G14 57% 51° 12%
6 PM Mostly Clear 63° 63° 0% 0.00 in W 5 G14 62% 50° 12%
7 PM Mostly Clear 59° 59° 0% 0.00 in W 5 G14 71% 50° 12%
8 PM Mostly Clear 56° 56° 0% 0.00 in Calm 79% 49° 7%
9 PM Mostly Clear 53° 53° 0% 0.00 in Calm 84% 48° 7%
10 PM Mostly Clear 51° 51° 0% 0.00 in Calm 87% 47° 7%
11 PM Mostly Clear 49° 49° 0% 0.00 in WNW 1 89% 46° 9%
Tuesday, October 2724 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds
12 AM Mostly Clear 47° 47° 0% 0.00 in WNW 1 92% 45° 9%
1 AM Patchy Fog 46° 46° 0% 0.00 in WNW 1 95% 45° 9%
2 AM Patchy Fog 45° 45° 0% 0.00 in NNW 1 96% 44° 23%
3 AM Patchy Fog 44° 44° 0% 0.00 in NNW 1 97% 44° 23%
4 AM Patchy Fog 43° 43° 0% 0.00 in NNW 1 97% 42° 23%
5 AM Patchy Fog 42° 43° 0% 0.00 in NNW 1 97% 42° 24%
6 AM Patchy Fog 41° 41° 0% 0.00 in NNW 1 100% 41° 24%
7 AM Patchy Fog 40° 40° 0% 0.00 in NNW 1 100% 40° 24%
8 AM Patchy Fog 41° 41° 0% 0.00 in N 2 100% 41° 23%
9 AM Sunny 46° 46° 0% 0.00 in N 2 91% 44° 23%
10 AM Sunny 53° 53° 0% 0.00 in N 2 80% 47° 23%
11 AM Sunny 59° 59° 0% 0.00 in Calm 69% 49° 12%
12 PM Sunny 62° 62° 0% 0.00 in Calm 62% 50° 12%
1 PM Sunny 65° 65° 0% 0.00 in Calm 58% 50° 12%
2 PM Mostly Sunny 67° 67° 0% 0.00 in WSW 1 G7 55% 50° 27%
3 PM Mostly Sunny 69° 69° 0% 0.00 in WSW 1 G7 50% 49° 27%
4 PM Mostly Sunny 70° 70° 0% 0.00 in WSW 1 G7 48% 49° 27%
5 PM Mostly Sunny 69° 69° 0% 0.00 in WSW 2 G9 50% 50° 28%
6 PM Partly Cloudy 66° 67° 0% 0.00 in WSW 2 G9 59% 52° 28%
7 PM Partly Cloudy 63° 63° 0% 0.00 in WSW 2 G9 68% 52° 28%
8 PM Partly Cloudy 58° 59° 0% 0.00 in Calm 77% 51° 28%
9 PM Partly Cloudy 55° 55° 0% 0.00 in Calm 82% 50° 28%
10 PM Partly Cloudy 52° 52° 0% 0.00 in Calm 85% 48° 28%
11 PM Partly Cloudy 50° 50° 0% 0.00 in Calm 87% 46° 32%
Wednesday, October 2824 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds
12 AM Partly Cloudy 48° 48° 0% 0.00 in Calm 91% 45° 32%
1 AM Patchy Fog 47° 47° 0% 0.00 in Calm 94% 45° 32%
2 AM Areas Of Fog 46° 46° 0% 0.00 in Calm 97% 45° 32%
3 AM Areas Of Fog 45° 45° 0% 0.00 in Calm 97% 44° 32%
4 AM Patchy Fog 44° 44° 0% 0.00 in Calm 96% 43° 32%
5 AM Patchy Fog 44° 44° 0% 0.00 in Calm 96% 42° 53%
6 AM Areas Of Fog 42° 42° 0% 0.00 in Calm 98% 42° 53%
7 AM Areas Of Fog 42° 42° 0% 0.00 in Calm 100% 42° 53%
8 AM Areas Of Fog 42° 43° 0% 0.00 in N 1 98% 43° 53%
9 AM Partly Sunny 47° 47° 0% 0.00 in N 1 90% 45° 53%
10 AM Partly Sunny 52° 52° 0% 0.00 in N 1 80% 47° 53%
11 AM Mostly Sunny 58° 58° 0% 0.00 in Calm 71% 49° 47%
12 PM Mostly Sunny 61° 61° 0% 0.00 in Calm 64% 49° 47%
1 PM Mostly Sunny 64° 64° 0% 0.00 in Calm 58% 49° 47%
2 PM Mostly Sunny 66° 66° 0% 0.00 in Calm 55% 49° 47%
3 PM Mostly Sunny 66° 66° 0% 0.00 in Calm 53% 49° 47%
4 PM Mostly Sunny 66° 66° 0% 0.00 in Calm 53% 49° 47%
5 PM Partly Sunny 64° 64° 0% 0.00 in SW 1 G7 56% 48° 61%
6 PM Mostly Cloudy 62° 62° 0% 0.00 in SW 1 G7 61% 48° 61%
7 PM Mostly Cloudy 58° 58° 0% 0.00 in SW 1 G7 69% 48° 61%
8 PM Mostly Cloudy 55° 55° 0% 0.00 in Calm 77% 48° 61%
9 PM Mostly Cloudy 53° 53° 0% 0.00 in Calm 81% 47° 61%
10 PM Mostly Cloudy 51° 51° 0% 0.00 in Calm 82% 46° 61%
11 PM Mostly Cloudy 50° 50° 0% 0.00 in Calm 84% 46° 67%
Thursday, October 2924 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds
12 AM Mostly Cloudy 49° 49° 0% 0.00 in Calm 88% 46° 67%
1 AM Mostly Cloudy 48° 48° 0% 0.00 in Calm 93% 46° 67%
2 AM Patchy Fog 47° 47° 0% 0.00 in Calm 96% 46° 67%
3 AM Areas Of Fog 46° 46° 0% 0.00 in Calm 98% 45° 67%
4 AM Areas Of Fog 45° 45° 0% 0.00 in Calm 98% 45° 67%
5 AM Areas Of Fog 44° 44° 0% 0.00 in Calm 98% 44° 68%
6 AM Areas Of Fog 43° 43° 0% 0.00 in Calm 100% 43° 68%
7 AM Areas Of Fog 42° 42° 0% 0.00 in Calm 100% 42° 68%
8 AM Patchy Fog 43° 43° 0% 0.00 in NW 1 99% 43° 68%
9 AM Patchy Fog 46° 46° 0% 0.00 in NW 1 94% 45° 68%
10 AM Partly Sunny 51° 51° 0% 0.00 in NW 1 87% 47° 68%
11 AM Mostly Sunny 55° 55° 2% 0.00 in W 1 79% 49° 42%
12 PM Mostly Sunny 58° 59° 2% 0.00 in W 1 70% 49° 42%
1 PM Mostly Sunny 61° 61° 2% 0.00 in W 1 62% 48° 42%
2 PM Mostly Sunny 63° 63° 2% 0.00 in WSW 2 G8 56% 48° 42%
3 PM Mostly Sunny 64° 64° 2% 0.00 in WSW 2 G8 53% 47° 42%
4 PM Mostly Sunny 64° 64° 2% 0.00 in WSW 2 G8 52% 46° 42%
5 PM Mostly Sunny 62° 63° 5% 0.00 in WSW 2 G9 53% 46° 31%
6 PM Partly Cloudy 60° 60° 5% 0.00 in WSW 2 G9 58% 46° 31%
7 PM Partly Cloudy 56° 56° 5% 0.00 in WSW 2 G9 66% 46° 31%
8 PM Partly Cloudy 53° 53° 5% 0.00 in Calm 75% 45° 31%
9 PM Partly Cloudy 51° 51° 5% 0.00 in Calm 78% 44° 31%
10 PM Partly Cloudy 49° 49° 5% 0.00 in Calm 80% 43° 31%
11 PM Partly Cloudy 48° 48° 5% 0.00 in WNW 1 81% 42° 33%
Friday, October 3024 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds
12 AM Partly Cloudy 46° 46° 5% 0.00 in WNW 1 86% 42° 33%
1 AM Partly Cloudy 45° 45° 5% 0.00 in WNW 1 91% 43° 33%
2 AM Patchy Fog 44° 44° 5% 0.00 in Calm 96% 43° 33%
3 AM Areas Of Fog 43° 43° 5% 0.00 in Calm 98% 42° 33%
4 AM Areas Of Fog 42° 42° 5% 0.00 in Calm 99% 42° 33%
5 AM Areas Of Fog 41° 41° 11% 0.00 in Calm 99% 41° 38%
6 AM Areas Of Fog 40° 40° 11% 0.00 in Calm 100% 40° 38%
7 AM Areas Of Fog 40° 39° 11% 0.00 in Calm 100% 40° 38%
8 AM Patchy Fog 40° 40° 11% 0.00 in NW 2 99% 41° 38%
9 AM Patchy Fog 44° 44° 11% 0.00 in NW 2 92% 42° 38%
10 AM Mostly Sunny 49° 49° 11% 0.00 in NW 2 83% 44° 38%
11 AM Mostly Sunny 54° 54° 14% 0.00 in WNW 1 74% 46° 26%
12 PM Mostly Sunny 57° 57° 14% 0.00 in WNW 1 66% 46° 26%
1 PM Mostly Sunny 60° 60° 14% 0.00 in WNW 1 59% 46° 26%
2 PM Mostly Sunny 62° 62° 14% 0.00 in WSW 2 G8 55% 45° 26%
3 PM Mostly Sunny 62° 62° 14% 0.00 in WSW 2 G8 53% 45° 26%
4 PM Mostly Sunny 62° 62° 14% 0.00 in WSW 2 G8 53% 45° 26%
5 PM Slight Chance Light Rain 61° 61° 15% 0.00 in WSW 2 G9 55% 45° 37%
6 PM Slight Chance Light Rain 58° 58° 15% 0.00 in WSW 2 G9 61% 45° 37%
7 PM Slight Chance Light Rain 55° 55° 15% 0.00 in WSW 2 G9 69% 45° 37%
8 PM Slight Chance Light Rain 52° 52° 15% 0.00 in Calm 78% 45° 37%
9 PM Slight Chance Light Rain 49° 49° 15% 0.00 in Calm 82% 44° 37%
10 PM Slight Chance Light Rain 48° 48° 15% 0.00 in Calm 85% 43° 37%
11 PM Slight Chance Light Rain 46° 46° 15% 0.00 in Calm 88% 43° 43%
Saturday, October 317 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds
12 AM Slight Chance Light Rain 44° 44° 15% 0.00 in Calm 92% 42° 43%
1 AM Areas Of Fog 43° 43° 15% 0.00 in Calm 97% 42° 43%
2 AM Areas Of Fog 42° 42° 15% 0.00 in Calm 100% 42° 43%
3 AM Areas Of Fog 41° 41° 15% 0.00 in Calm 100% 41° 43%
4 AM Areas Of Fog 40° 40° 15% 0.00 in Calm 100% 40° 43%
5 AM Areas Of Fog 40° 40° 11% 0.00 in Calm 100% 40° 47%
6 AM Areas Of Fog 41° 41° 11% 0.00 in Calm 100% 41° 47%

National Weather Service forecast updated 6 hrs ago. Precipitation amounts are the forecast liquid equivalent for each hour.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.