Extended 10-day forecasts, St. Helena (CA)
Hourly detail for the next 48 hours, six-hourly segments for the rest of the week.
This is the 10-day extended forecast for St. Helena, the United States of America. The forecast is updated every three hours and displays the temperature, weather conditions, wind direction and speed, as well as the chance of precipitation.
Check out our September climate page to see if the current temperatures in St. Helena is typical for this time of year.
Today · Tuesday 1 Sep
Hour by hour
| Time | Weather | Temp | Precip | Humidity | Wind |
|---|---|---|---|---|---|
| 13:00 |
Partly cloudy
|
21°C (70°F) | 0 mm (0 in) | 59% | SW 4 m/s (8 knots) |
| 14:00 |
Cloudy
|
22°C (72°F) | 0 mm (0 in) | 53% | SW 5 m/s (10 knots) |
| 15:00 |
Partly cloudy
|
22°C (72°F) | 0 mm (0 in) | 50% | SW 5 m/s (10 knots) |
| 16:00 |
Partly cloudy
|
21°C (70°F) | 0 mm (0 in) | 51% | SW 5 m/s (10 knots) |
| 17:00 |
Partly cloudy
|
20°C (68°F) | 0 mm (0 in) | 52% | SW 5 m/s (10 knots) |
| 18:00 |
Mostly sunny
|
19°C (66°F) | 0 mm (0 in) | 55% | SW 5 m/s (10 knots) |
| 19:00 |
Partly cloudy
|
18°C (64°F) | 0 mm (0 in) | 60% | SW 5 m/s (10 knots) |
| 20:00 |
Mostly clear
|
16°C (61°F) | 0 mm (0 in) | 70% | SW 4 m/s (8 knots) |
| 21:00 |
Clear skies
|
16°C (61°F) | 0 mm (0 in) | 79% | SW 4 m/s (8 knots) |
| 22:00 |
Clear skies
|
15°C (59°F) | 0 mm (0 in) | 85% | SW 3 m/s (6 knots) |
| 23:00 |
Mostly clear
|
14°C (57°F) | 0 mm (0 in) | 91% | SW 2 m/s (4 knots) |
13:00
Partly cloudy
59% · SW 4 m/s (8 knots)
21°C (70°F)
0 mm (0 in)
14:00
Cloudy
53% · SW 5 m/s (10 knots)
22°C (72°F)
0 mm (0 in)
15:00
Partly cloudy
50% · SW 5 m/s (10 knots)
22°C (72°F)
0 mm (0 in)
16:00
Partly cloudy
51% · SW 5 m/s (10 knots)
21°C (70°F)
0 mm (0 in)
17:00
Partly cloudy
52% · SW 5 m/s (10 knots)
20°C (68°F)
0 mm (0 in)
18:00
Mostly sunny
55% · SW 5 m/s (10 knots)
19°C (66°F)
0 mm (0 in)
19:00
Partly cloudy
60% · SW 5 m/s (10 knots)
18°C (64°F)
0 mm (0 in)
20:00
Mostly clear
70% · SW 4 m/s (8 knots)
16°C (61°F)
0 mm (0 in)
21:00
Clear skies
79% · SW 4 m/s (8 knots)
16°C (61°F)
0 mm (0 in)
22:00
Clear skies
85% · SW 3 m/s (6 knots)
15°C (59°F)
0 mm (0 in)
23:00
Mostly clear
91% · SW 2 m/s (4 knots)
14°C (57°F)
0 mm (0 in)
Tomorrow · Wednesday 2 Sep
Hour by hour
| Time | Weather | Temp | Precip | Humidity | Wind |
|---|---|---|---|---|---|
| 00:00 |
Partly cloudy
|
14°C (57°F) | 0 mm (0 in) | 96% | SW 2 m/s (4 knots) |
| 01:00 |
Cloudy
|
14°C (57°F) | 0 mm (0 in) | 98% | SW 2 m/s (4 knots) |
| 02:00 |
Fog
|
15°C (59°F) | 0 mm (0 in) | 98% | SW 2 m/s (4 knots) |
| 03:00 |
Light rain
|
15°C (59°F) | 0.1 mm (0 in) | 98% | SW 2 m/s (4 knots) |
| 04:00 |
Rain
|
15°C (59°F) | 0.3 mm (0.01 in) | 99% | SW 1 m/s (2 knots) |
| 05:00 |
Rain
|
15°C (59°F) | 0.7 mm (0.03 in) | 99% | S 2 m/s (4 knots) |
| 06:00 |
Rain
|
15°C (59°F) | 0.3 mm (0.01 in) | 99% | SW 2 m/s (4 knots) |
| 07:00 |
Rain
|
16°C (61°F) | 0.5 mm (0.02 in) | 100% | SW 2 m/s (4 knots) |
| 08:00 |
Rain
|
16°C (61°F) | 0.4 mm (0.02 in) | 99% | S 3 m/s (6 knots) |
| 09:00 |
Rain showers
|
16°C (61°F) | 0.4 mm (0.02 in) | 96% | S 2 m/s (4 knots) |
| 10:00 |
Rain showers
|
17°C (63°F) | 0.5 mm (0.02 in) | 92% | S 2 m/s (4 knots) |
| 11:00 |
Rain showers
|
19°C (66°F) | 0.3 mm (0.01 in) | 79% | S 3 m/s (6 knots) |
| 12:00 |
Rain showers
|
21°C (70°F) | 0.4 mm (0.02 in) | 68% | SW 4 m/s (8 knots) |
| 13:00 |
Rain showers
|
21°C (70°F) | 0.5 mm (0.02 in) | 68% | SW 4 m/s (8 knots) |
| 14:00 |
Rain showers
|
21°C (70°F) | 0.5 mm (0.02 in) | 68% | SW 4 m/s (8 knots) |
| 15:00 |
Partly cloudy
|
22°C (72°F) | 0 mm (0 in) | 66% | SW 5 m/s (10 knots) |
| 16:00 |
Partly cloudy
|
22°C (72°F) | 0 mm (0 in) | 60% | SW 5 m/s (10 knots) |
| 17:00 |
Partly cloudy
|
21°C (70°F) | 0 mm (0 in) | 65% | SW 5 m/s (10 knots) |
| 18:00 |
Partly cloudy
|
21°C (70°F) | 0 mm (0 in) | 70% | SW 4 m/s (8 knots) |
| 19:00 |
Partly cloudy
|
19°C (66°F) | 0 mm (0 in) | 78% | SW 4 m/s (8 knots) |
| 20:00 |
Partly cloudy
|
17°C (63°F) | 0 mm (0 in) | 87% | W 3 m/s (6 knots) |
| 21:00 |
Partly cloudy
|
16°C (61°F) | 0 mm (0 in) | 95% | SW 2 m/s (4 knots) |
| 22:00 |
Partly cloudy
|
15°C (59°F) | 0 mm (0 in) | 99% | W 2 m/s (4 knots) |
| 23:00 |
Partly cloudy
|
15°C (59°F) | 0 mm (0 in) | 99% | W 2 m/s (4 knots) |
00:00
Partly cloudy
96% · SW 2 m/s (4 knots)
14°C (57°F)
0 mm (0 in)
01:00
Cloudy
98% · SW 2 m/s (4 knots)
14°C (57°F)
0 mm (0 in)
02:00
Fog
98% · SW 2 m/s (4 knots)
15°C (59°F)
0 mm (0 in)
03:00
Light rain
98% · SW 2 m/s (4 knots)
15°C (59°F)
0.1 mm (0 in)
04:00
Rain
99% · SW 1 m/s (2 knots)
15°C (59°F)
0.3 mm (0.01 in)
05:00
Rain
99% · S 2 m/s (4 knots)
15°C (59°F)
0.7 mm (0.03 in)
06:00
Rain
99% · SW 2 m/s (4 knots)
15°C (59°F)
0.3 mm (0.01 in)
07:00
Rain
100% · SW 2 m/s (4 knots)
16°C (61°F)
0.5 mm (0.02 in)
08:00
Rain
99% · S 3 m/s (6 knots)
16°C (61°F)
0.4 mm (0.02 in)
09:00
Rain showers
96% · S 2 m/s (4 knots)
16°C (61°F)
0.4 mm (0.02 in)
10:00
Rain showers
92% · S 2 m/s (4 knots)
17°C (63°F)
0.5 mm (0.02 in)
11:00
Rain showers
79% · S 3 m/s (6 knots)
19°C (66°F)
0.3 mm (0.01 in)
12:00
Rain showers
68% · SW 4 m/s (8 knots)
21°C (70°F)
0.4 mm (0.02 in)
13:00
Rain showers
68% · SW 4 m/s (8 knots)
21°C (70°F)
0.5 mm (0.02 in)
14:00
Rain showers
68% · SW 4 m/s (8 knots)
21°C (70°F)
0.5 mm (0.02 in)
15:00
Partly cloudy
66% · SW 5 m/s (10 knots)
22°C (72°F)
0 mm (0 in)
16:00
Partly cloudy
60% · SW 5 m/s (10 knots)
22°C (72°F)
0 mm (0 in)
17:00
Partly cloudy
65% · SW 5 m/s (10 knots)
21°C (70°F)
0 mm (0 in)
18:00
Partly cloudy
70% · SW 4 m/s (8 knots)
21°C (70°F)
0 mm (0 in)
19:00
Partly cloudy
78% · SW 4 m/s (8 knots)
19°C (66°F)
0 mm (0 in)
20:00
Partly cloudy
87% · W 3 m/s (6 knots)
17°C (63°F)
0 mm (0 in)
21:00
Partly cloudy
95% · SW 2 m/s (4 knots)
16°C (61°F)
0 mm (0 in)
22:00
Partly cloudy
99% · W 2 m/s (4 knots)
15°C (59°F)
0 mm (0 in)
23:00
Partly cloudy
99% · W 2 m/s (4 knots)
15°C (59°F)
0 mm (0 in)
Next 7 days
Six-hour segments
Day
Night
23:00
Morning
05:00
Afternoon
11:00
Evening
17:00
Thursday
3 Sep
15°C (59°F)
0 mm (0 in)
Partly cloudy
99% · W 2 m/s (4 knots)
15°C (59°F)
1.1 mm (0.04 in)
Rain
98% · SW 1 m/s (2 knots)
17°C (63°F)
4.1 mm (0.2 in)
Rain
94% · SW 3 m/s (6 knots)
18°C (64°F)
0 mm (0 in)
Clear skies
95% · SW 3 m/s (6 knots)
Thu
3 Sep
night
15°C (59°F)
0 mm (0 in)
Partly cloudy
99%
2 m/s (4 knots)
morning
15°C (59°F)
1.1 mm (0.04 in)
Rain
98%
1 m/s (2 knots)
afternoon
17°C (63°F)
4.1 mm (0.2 in)
Rain
94%
3 m/s (6 knots)
evening
18°C (64°F)
0 mm (0 in)
Clear skies
95%
3 m/s (6 knots)
Friday
4 Sep
13°C (55°F)
0 mm (0 in)
Mostly clear
97% · W 2 m/s (4 knots)
11°C (52°F)
0 mm (0 in)
Mostly sunny
100% · W 2 m/s (4 knots)
20°C (68°F)
0 mm (0 in)
Clear skies
56% · W 2 m/s (4 knots)
21°C (70°F)
0 mm (0 in)
Clear skies
52% · W 4 m/s (8 knots)
Fri
4 Sep
night
13°C (55°F)
0 mm (0 in)
Mostly clear
97%
2 m/s (4 knots)
morning
11°C (52°F)
0 mm (0 in)
Mostly sunny
100%
2 m/s (4 knots)
afternoon
20°C (68°F)
0 mm (0 in)
Clear skies
56%
2 m/s (4 knots)
evening
21°C (70°F)
0 mm (0 in)
Clear skies
52%
4 m/s (8 knots)
Saturday
5 Sep
14°C (57°F)
0 mm (0 in)
Clear skies
94% · W 2 m/s (4 knots)
11°C (52°F)
0 mm (0 in)
Clear skies
97% · NW 1 m/s (2 knots)
22°C (72°F)
0 mm (0 in)
Clear skies
46% · SW 1 m/s (2 knots)
23°C (73°F)
0 mm (0 in)
Partly cloudy
38% · SW 3 m/s (6 knots)
Sat
5 Sep
night
14°C (57°F)
0 mm (0 in)
Clear skies
94%
2 m/s (4 knots)
morning
11°C (52°F)
0 mm (0 in)
Clear skies
97%
1 m/s (2 knots)
afternoon
22°C (72°F)
0 mm (0 in)
Clear skies
46%
1 m/s (2 knots)
evening
23°C (73°F)
0 mm (0 in)
Partly cloudy
38%
3 m/s (6 knots)
Sunday
6 Sep
14°C (57°F)
0 mm (0 in)
Clear skies
84% · W 1 m/s (2 knots)
11°C (52°F)
0 mm (0 in)
Clear skies
92% · W 1 m/s (2 knots)
21°C (70°F)
0 mm (0 in)
Clear skies
50% · W 2 m/s (4 knots)
23°C (73°F)
0 mm (0 in)
Clear skies
53% · W 4 m/s (8 knots)
Sun
6 Sep
night
14°C (57°F)
0 mm (0 in)
Clear skies
84%
1 m/s (2 knots)
morning
11°C (52°F)
0 mm (0 in)
Clear skies
92%
1 m/s (2 knots)
afternoon
21°C (70°F)
0 mm (0 in)
Clear skies
50%
2 m/s (4 knots)
evening
23°C (73°F)
0 mm (0 in)
Clear skies
53%
4 m/s (8 knots)
Monday
7 Sep
14°C (57°F)
0 mm (0 in)
Clear skies
82% · W 3 m/s (6 knots)
12°C (54°F)
0 mm (0 in)
Clear skies
96% · W 3 m/s (6 knots)
22°C (72°F)
0 mm (0 in)
Clear skies
48% · NE 1 m/s (2 knots)
27°C (81°F)
0 mm (0 in)
Clear skies
27% · W 1 m/s (2 knots)
Mon
7 Sep
night
14°C (57°F)
0 mm (0 in)
Clear skies
82%
3 m/s (6 knots)
morning
12°C (54°F)
0 mm (0 in)
Clear skies
96%
3 m/s (6 knots)
afternoon
22°C (72°F)
0 mm (0 in)
Clear skies
48%
1 m/s (2 knots)
evening
27°C (81°F)
0 mm (0 in)
Clear skies
27%
1 m/s (2 knots)
Tuesday
8 Sep
17°C (63°F)
0 mm (0 in)
Clear skies
79% · NW 1 m/s (2 knots)
17°C (63°F)
0 mm (0 in)
Clear skies
57% · NW 1 m/s (2 knots)
29°C (84°F)
0 mm (0 in)
Mostly sunny
25% · N 1 m/s (2 knots)
27°C (81°F)
0.1 mm (0 in)
Partly cloudy
35% · SW 3 m/s (6 knots)
Tue
8 Sep
night
17°C (63°F)
0 mm (0 in)
Clear skies
79%
1 m/s (2 knots)
morning
17°C (63°F)
0 mm (0 in)
Clear skies
57%
1 m/s (2 knots)
afternoon
29°C (84°F)
0 mm (0 in)
Mostly sunny
25%
1 m/s (2 knots)
evening
27°C (81°F)
0.1 mm (0 in)
Partly cloudy
35%
3 m/s (6 knots)
Wednesday
9 Sep
19°C (66°F)
0 mm (0 in)
Clear skies
66% · W 1 m/s (2 knots)
14°C (57°F)
0 mm (0 in)
Clear skies
87% · W 1 m/s (2 knots)
25°C (77°F)
0.2 mm (0.01 in)
Clear skies
41% · S 2 m/s (4 knots)
27°C (81°F)
0.1 mm (0 in)
Partly cloudy
36% · S 3 m/s (6 knots)
Wed
9 Sep
night
19°C (66°F)
0 mm (0 in)
Clear skies
66%
1 m/s (2 knots)
morning
14°C (57°F)
0 mm (0 in)
Clear skies
87%
1 m/s (2 knots)
afternoon
25°C (77°F)
0.2 mm (0.01 in)
Clear skies
41%
2 m/s (4 knots)
evening
27°C (81°F)
0.1 mm (0 in)
Partly cloudy
36%
3 m/s (6 knots)
Data from MET Norway.
Prefer the quick-glance version? See the 10-day summary.
St. Helena weather by month
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