Current weather conditions and 15 day weather forecast for Sourdough Island on Salmon Lake Heliport, Montana, USA including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain risk, wind speed, cloud, pressure, and UV index.
| 18 September 2026 Friday 15.4 ° C / 59.8°F ![]() Light rain shower |
Feels Like : 13.4 ° C / 56.1°F Humidity : % 71 Pressure : 1014 mb Wind Speed : 10.8 kmph / 6.7 miles from SSW ![]() Visibility : 10 km Precipitation (rainfall) : 0.2 mm Cloud (%) : 100 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 17 September 2026 Thursday | Sunny |
5.7 ° C (42.3°F) |
22.7 ° C (72.9°F) |
12.9 ° C (55.2°F) |
% 64 | 36% | 4.9 | Sunrise:07:13 AM Sunset: 07:41 PM |
Moonrise:03:14 PM Moonset: 10:49 PM Moon Phase ( First Quarter ) |
|
| 18 September 2026 Friday | Sunny |
8.2 ° C (46.8°F) |
23.1 ° C (73.5°F) |
13.3 ° C (56°F) |
% 79 | 72% | 4.6 | Sunrise:07:14 AM Sunset: 07:39 PM |
Moonrise:04:07 PM Moonset: 11:45 PM Moon Phase ( First Quarter ) |
|
| 19 September 2026 Saturday | Patchy rain nearby |
8.5 ° C (47.2°F) |
20.5 ° C (68.9°F) |
13.6 ° C (56.5°F) |
% 72 | 57% | 4.3 | Sunrise:07:16 AM Sunset: 07:37 PM |
Moonrise:04:49 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 20 September 2026 Sunday | Sunny |
5.7 ° C (42.2°F) |
22.8 ° C (73°F) |
12.9 ° C (55.2°F) |
% 64 | 4% | 5 | Sunrise:07:17 AM Sunset: 07:35 PM |
Moonrise:05:21 PM Moonset: 12:48 AM Moon Phase ( Waxing Gibbous ) |
|
| 21 September 2026 Monday | Sunny |
6.5 ° C (43.6°F) |
22.2 ° C (71.9°F) |
13.4 ° C (56°F) |
% 52 | 4% | 6 | Sunrise:07:18 AM Sunset: 07:33 PM |
Moonrise:05:46 PM Moonset: 01:55 AM Moon Phase ( Waxing Gibbous ) |
|
| 22 September 2026 Tuesday | Sunny |
4 ° C (39.2°F) |
14.6 ° C (58.2°F) |
9 ° C (48.2°F) |
% 50 | 3% | 4 | Sunrise:07:20 AM Sunset: 07:31 PM |
Moonrise:06:07 PM Moonset: 03:03 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 September 2026 Wednesday | Sunny |
2.4 ° C (36.3°F) |
20 ° C (68°F) |
10.3 ° C (50.6°F) |
% 48 | 4% | 5 | Sunrise:07:21 AM Sunset: 07:29 PM |
Moonrise:06:24 PM Moonset: 04:11 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 September 2026 Thursday | Sunny |
6 ° C (42.8°F) |
22.7 ° C (72.9°F) |
13.5 ° C (56.3°F) |
% 55 | 3% | 6 | Sunrise:07:22 AM Sunset: 07:27 PM |
Moonrise:06:39 PM Moonset: 05:18 AM Moon Phase ( Full Moon ) |
|
| 25 September 2026 Friday | Overcast |
8.4 ° C (47°F) |
25 ° C (77°F) |
15.6 ° C (60°F) |
% 50 | 6% | 6 | Sunrise:07:24 AM Sunset: 07:25 PM |
Moonrise:06:54 PM Moonset: 06:25 AM Moon Phase ( Full Moon ) |
|
| 26 September 2026 Saturday | Overcast |
10 ° C (50°F) |
23.7 ° C (74.7°F) |
15.5 ° C (59.9°F) |
% 49 | 8% | 6 | Sunrise:07:25 AM Sunset: 07:23 PM |
Moonrise:07:09 PM Moonset: 07:32 AM Moon Phase ( Full Moon ) |
|
| 27 September 2026 Sunday | Sunny |
4.1 ° C (39.4°F) |
15.5 ° C (60°F) |
10.6 ° C (51°F) |
% 55 | 5% | 5 | Sunrise:07:26 AM Sunset: 07:21 PM |
Moonrise:07:26 PM Moonset: 08:41 AM Moon Phase ( Waning Gibbous ) |
|
| 28 September 2026 Monday | Sunny |
0.5 ° C (32.8°F) |
12.9 ° C (55.2°F) |
5.6 ° C (42°F) |
% 48 | 5% | 4 | Sunrise:07:28 AM Sunset: 07:19 PM |
Moonrise:07:46 PM Moonset: 09:53 AM Moon Phase ( Waning Gibbous ) |
|
| 29 September 2026 Tuesday | Overcast |
-1.3 ° C (29.7°F) |
13.1 ° C (55.6°F) |
5.2 ° C (41.4°F) |
% 65 | 11% | 3 | Sunrise:07:29 AM Sunset: 07:17 PM |
Moonrise:08:10 PM Moonset: 11:08 AM Moon Phase ( Waning Gibbous ) |
|
| 30 September 2026 Wednesday | Sunny |
1.1 ° C (33.9°F) |
15.4 ° C (59.8°F) |
7.3 ° C (45.2°F) |
% 59 | 5% | 5 | Sunrise:07:30 AM Sunset: 07:15 PM |
Moonrise:08:43 PM Moonset: 12:24 PM Moon Phase ( Waning Gibbous ) |
|