Riverton Regional Airport Weather Forecast 15 Days, Weather in RIW Today
Current weather conditions and 15 day weather forecast for Riverton Regional Airport, Wyoming, 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 Riverton Regional Airport
| 14 September 2026 Monday 21.9 ° C / 71.4°F  Clear |
Feels Like : 19.3 ° C / 66.7°F Humidity : % 36 Pressure : 1001 mb Wind Speed : 8.6 kmph / 5.4 miles from SSE  Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 5 |
15 day weather forecast for Riverton Regional Airport, WY, USA
Weather Forecast for next 15 Days for Riverton Regional Airport 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 Riverton Regional Airport, Wyoming 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 13 September 2026 Sunday | Sunny |
11.3 ° C (52.3°F) |
31.9 ° C (89.4°F) |
20.6 ° C (69.1°F) |
% 32 | 3% | 7 | Sunrise:06:51 AM Sunset: 07:27 PM |
Moonrise:09:50 AM Moonset: 08:22 PM Moon Phase ( Waxing Crescent ) |
|
| 14 September 2026 Monday | Sunny |
12.2 ° C (53.9°F) |
24.9 ° C (76.8°F) |
18.4 ° C (65.1°F) |
% 25 | 0% | 6.3 | Sunrise:06:52 AM Sunset: 07:25 PM |
Moonrise:11:05 AM Moonset: 08:49 PM Moon Phase ( Waxing Crescent ) |
|
| 15 September 2026 Tuesday |  Overcast |
6.9 ° C (44.5°F) |
23.4 ° C (74°F) |
14.6 ° C (58.3°F) |
% 35 | 4% | 5.9 | Sunrise:06:53 AM Sunset: 07:24 PM |
Moonrise:12:19 PM Moonset: 09:22 PM Moon Phase ( Waxing Crescent ) |
|
| 16 September 2026 Wednesday | Sunny |
10.6 ° C (51.1°F) |
29.1 ° C (84.4°F) |
19.4 ° C (66.9°F) |
% 32 | 1% | 6 | Sunrise:06:54 AM Sunset: 07:22 PM |
Moonrise:01:29 PM Moonset: 10:02 PM Moon Phase ( First Quarter ) |
|
| 17 September 2026 Thursday | Overcast |
15.6 ° C (60.1°F) |
26.1 ° C (79°F) |
20.2 ° C (68.3°F) |
% 33 | 17% | 6 | Sunrise:06:55 AM Sunset: 07:20 PM |
Moonrise:02:32 PM Moonset: 10:50 PM Moon Phase ( First Quarter ) |
|
| 18 September 2026 Friday | Sunny |
13.4 ° C (56.1°F) |
29.9 ° C (85.9°F) |
20.1 ° C (68.1°F) |
% 41 | 36% | 7 | Sunrise:06:56 AM Sunset: 07:18 PM |
Moonrise:03:25 PM Moonset: 11:46 PM Moon Phase ( First Quarter ) |
|
| 19 September 2026 Saturday | Sunny |
11.3 ° C (52.4°F) |
23.4 ° C (74.1°F) |
15.2 ° C (59.4°F) |
% 57 | 41% | 6 | Sunrise:06:57 AM Sunset: 07:16 PM |
Moonrise:04:09 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 20 September 2026 Sunday | Sunny |
10.1 ° C (50.1°F) |
23.3 ° C (73.9°F) |
16.6 ° C (62°F) |
% 42 | 17% | 6 | Sunrise:06:58 AM Sunset: 07:15 PM |
Moonrise:04:45 PM Moonset: 12:47 AM Moon Phase ( Waxing Gibbous ) |
|
| 21 September 2026 Monday | Sunny |
11 ° C (51.7°F) |
25 ° C (77°F) |
17.8 ° C (64.1°F) |
% 33 | 1% | 7 | Sunrise:06:59 AM Sunset: 07:13 PM |
Moonrise:05:13 PM Moonset: 01:50 AM Moon Phase ( Waxing Gibbous ) |
|
| 22 September 2026 Tuesday | Sunny |
13.1 ° C (55.6°F) |
27 ° C (80.5°F) |
20 ° C (68°F) |
% 20 | 3% | 7 | Sunrise:07:00 AM Sunset: 07:11 PM |
Moonrise:05:37 PM Moonset: 02:55 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 September 2026 Wednesday | Sunny |
9.7 ° C (49.4°F) |
20.8 ° C (69.5°F) |
15.3 ° C (59.5°F) |
% 43 | 1% | 6 | Sunrise:07:02 AM Sunset: 07:09 PM |
Moonrise:05:57 PM Moonset: 03:59 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 September 2026 Thursday | Overcast |
9.6 ° C (49.3°F) |
25 ° C (77°F) |
17.2 ° C (63°F) |
% 29 | 5% | 6 | Sunrise:07:03 AM Sunset: 07:07 PM |
Moonrise:06:16 PM Moonset: 05:02 AM Moon Phase ( Full Moon ) |
|
| 25 September 2026 Friday |  Partly Cloudy |
14.3 ° C (57.8°F) |
27.1 ° C (80.7°F) |
20.3 ° C (68.5°F) |
% 29 | 4% | 7 | Sunrise:07:04 AM Sunset: 07:06 PM |
Moonrise:06:34 PM Moonset: 06:05 AM Moon Phase ( Full Moon ) |
|
| 26 September 2026 Saturday | Sunny |
12.9 ° C (55.2°F) |
25.9 ° C (78.5°F) |
19.6 ° C (67.3°F) |
% 26 | 3% | 7 | Sunrise:07:05 AM Sunset: 07:04 PM |
Moonrise:06:53 PM Moonset: 07:09 AM Moon Phase ( Full Moon ) |
|
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