Index Weather Forecast 15 Days, Weather in Index Today
Current weather conditions and 15 day weather forecast for Index, Washington, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
Current weather conditions at Index
| 30 April 2026 Thursday 12.2 ° C / 54°F  Sunny |
Feels Like : 12.7 ° C / 54.8°F Humidity : % 83 Pressure : 1022 mb Wind Speed : 3.6 kmph / 2.2 miles from WNW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15 day weather forecast for Index, WA, USA
Weather Forecast for next 15 Days for Index including weather warnings, temperature, rain, wind speed, cloud, snow, wind speed and wind direction, pressure and UV index.Here is weather for the next 15 days in Index, Washington state, US. To see the daily forecast, scroll to the table below.
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 30 April 2026 Thursday | Sunny |
7.8 ° C (46.1°F) |
25 ° C (77°F) |
16.2 ° C (61.2°F) |
% 74 | 0% | 5.9 | Sunrise:05:51 AM Sunset: 08:19 PM |
Moonrise:07:51 PM Moonset: 05:02 AM Moon Phase ( Waxing Gibbous ) |
|
| 01 May 2026 Friday |  Patchy rain nearby |
6.5 ° C (43.6°F) |
21.1 ° C (70°F) |
13.2 ° C (55.8°F) |
% 71 | 84% | 5.3 | Sunrise:05:49 AM Sunset: 08:20 PM |
Moonrise:09:01 PM Moonset: 05:21 AM Moon Phase ( Full Moon ) |
|
| 02 May 2026 Saturday | Patchy rain nearby |
5.6 ° C (42°F) |
23.5 ° C (74.4°F) |
13.6 ° C (56.4°F) |
% 80 | 88% | 5.2 | Sunrise:05:47 AM Sunset: 08:21 PM |
Moonrise:10:10 PM Moonset: 05:43 AM Moon Phase ( Waning Gibbous ) |
|
| 03 May 2026 Sunday | Sunny |
8.1 ° C (46.5°F) |
27.1 ° C (80.7°F) |
17.3 ° C (63.2°F) |
% 66 | 0% | 6 | Sunrise:05:46 AM Sunset: 08:23 PM |
Moonrise:11:16 PM Moonset: 06:12 AM Moon Phase ( Waning Gibbous ) |
|
| 04 May 2026 Monday | Sunny |
10.2 ° C (50.3°F) |
27.3 ° C (81.1°F) |
18.2 ° C (64.8°F) |
% 58 | 0% | 0 | Sunrise:05:44 AM Sunset: 08:24 PM |
Moonrise:No moonrise Moonset: 06:50 AM Moon Phase ( Waning Gibbous ) |
|
| 05 May 2026 Tuesday | Sunny |
6.9 ° C (44.4°F) |
23.5 ° C (74.3°F) |
14.8 ° C (58.7°F) |
% 70 | 0% | 4 | Sunrise:05:43 AM Sunset: 08:26 PM |
Moonrise:12:13 AM Moonset: 07:38 AM Moon Phase ( Waning Gibbous ) |
|
| 06 May 2026 Wednesday | Sunny |
6.3 ° C (43.3°F) |
23.3 ° C (73.9°F) |
14.4 ° C (58°F) |
% 70 | 0% | 4 | Sunrise:05:41 AM Sunset: 08:27 PM |
Moonrise:01:02 AM Moonset: 08:35 AM Moon Phase ( Waning Gibbous ) |
|
| 07 May 2026 Thursday |  Partly Cloudy |
6 ° C (42.8°F) |
23.4 ° C (74°F) |
14.6 ° C (58.2°F) |
% 68 | 0% | 4 | Sunrise:05:40 AM Sunset: 08:28 PM |
Moonrise:01:40 AM Moonset: 09:40 AM Moon Phase ( Waning Gibbous ) |
|
| 08 May 2026 Friday | Sunny |
6 ° C (42.8°F) |
21.8 ° C (71.3°F) |
13.7 ° C (56.7°F) |
% 72 | 0% | 4 | Sunrise:05:38 AM Sunset: 08:30 PM |
Moonrise:02:09 AM Moonset: 10:50 AM Moon Phase ( Waning Gibbous ) |
|
| 09 May 2026 Saturday | Patchy rain nearby |
5 ° C (40.9°F) |
18.6 ° C (65.4°F) |
11.7 ° C (53°F) |
% 81 | 87% | 3 | Sunrise:05:37 AM Sunset: 08:31 PM |
Moonrise:02:32 AM Moonset: 12:02 PM Moon Phase ( Last Quarter ) |
|
| 10 May 2026 Sunday | Patchy rain nearby |
5.1 ° C (41.1°F) |
15.7 ° C (60.3°F) |
9.9 ° C (49.8°F) |
% 81 | 0% | 2 | Sunrise:05:35 AM Sunset: 08:32 PM |
Moonrise:02:51 AM Moonset: 01:14 PM Moon Phase ( Waning Crescent ) |
|
| 11 May 2026 Monday |  Cloudy |
6.9 ° C (44.4°F) |
20.9 ° C (69.7°F) |
12.8 ° C (55.1°F) |
% 73 | 0% | 3 | Sunrise:05:34 AM Sunset: 08:34 PM |
Moonrise:03:08 AM Moonset: 02:28 PM Moon Phase ( Waning Crescent ) |
|
| 12 May 2026 Tuesday | Cloudy |
4.4 ° C (40°F) |
20.3 ° C (68.5°F) |
11.6 ° C (52.9°F) |
% 77 | 0% | 3 | Sunrise:05:33 AM Sunset: 08:35 PM |
Moonrise:03:24 AM Moonset: 03:44 PM Moon Phase ( Waning Crescent ) |
|
| 13 May 2026 Wednesday | Partly Cloudy |
3.3 ° C (37.9°F) |
18.8 ° C (65.9°F) |
10.5 ° C (50.9°F) |
% 71 | 0% | 4 | Sunrise:05:31 AM Sunset: 08:36 PM |
Moonrise:03:40 AM Moonset: 05:04 PM Moon Phase ( Waning Crescent ) |
|
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