Current weather conditions and 15 day weather forecast for Helena West Side, 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 14.5 ° C / 58°F ![]() Overcast |
Feels Like : 13.8 ° C / 56.8°F Humidity : % 68 Pressure : 1017 mb Wind Speed : 3.6 kmph / 2.2 miles from SSW ![]() Visibility : 10 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 18 September 2026 Friday | Patchy rain nearby |
10.9 ° C (51.6°F) |
21.4 ° C (70.5°F) |
14.9 ° C (58.9°F) |
% 67 | 76% | 4.3 | Sunrise:07:10 AM Sunset: 07:34 PM |
Moonrise:03:59 PM Moonset: 11:43 PM Moon Phase ( First Quarter ) |
|
| 19 September 2026 Saturday | Light rain shower |
8.3 ° C (46.9°F) |
11.9 ° C (53.5°F) |
10.5 ° C (50.9°F) |
% 91 | 92% | 1.4 | Sunrise:07:11 AM Sunset: 07:32 PM |
Moonrise:04:41 PM Moonset: Does not set today Moon Phase ( First Quarter ) |
|
| 20 September 2026 Sunday | Sunny |
6.5 ° C (43.8°F) |
20.7 ° C (69.2°F) |
12.6 ° C (54.7°F) |
% 64 | 6% | 5.2 | Sunrise:07:12 AM Sunset: 07:30 PM |
Moonrise:05:14 PM Moonset: 12:46 AM Moon Phase ( Waxing Gibbous ) |
|
| 21 September 2026 Monday | Sunny |
9.5 ° C (49°F) |
23.4 ° C (74.2°F) |
15.5 ° C (59.8°F) |
% 46 | 2% | 5.1 | Sunrise:07:14 AM Sunset: 07:28 PM |
Moonrise:05:40 PM Moonset: 01:52 AM Moon Phase ( Waxing Gibbous ) |
|
| 22 September 2026 Tuesday | Sunny |
10.7 ° C (51.2°F) |
23.5 ° C (74.3°F) |
16.1 ° C (61°F) |
% 38 | 3% | 6 | Sunrise:07:15 AM Sunset: 07:26 PM |
Moonrise:06:00 PM Moonset: 03:00 AM Moon Phase ( Waxing Gibbous ) |
|
| 23 September 2026 Wednesday | Sunny |
8.9 ° C (48.1°F) |
20.7 ° C (69.2°F) |
14.1 ° C (57.3°F) |
% 40 | 1% | 6 | Sunrise:07:16 AM Sunset: 07:24 PM |
Moonrise:06:18 PM Moonset: 04:07 AM Moon Phase ( Waxing Gibbous ) |
|
| 24 September 2026 Thursday | Sunny |
9.8 ° C (49.7°F) |
25.5 ° C (77.9°F) |
16.7 ° C (62°F) |
% 38 | 3% | 7 | Sunrise:07:17 AM Sunset: 07:22 PM |
Moonrise:06:34 PM Moonset: 05:13 AM Moon Phase ( Full Moon ) |
|
| 25 September 2026 Friday | Overcast |
13.1 ° C (55.6°F) |
27 ° C (80.7°F) |
18.8 ° C (65.8°F) |
% 34 | 5% | 7 | Sunrise:07:19 AM Sunset: 07:20 PM |
Moonrise:06:49 PM Moonset: 06:20 AM Moon Phase ( Full Moon ) |
|
| 26 September 2026 Saturday | Overcast |
4.8 ° C (40.6°F) |
19.6 ° C (67.2°F) |
12 ° C (53.6°F) |
% 61 | 62% | 5 | Sunrise:07:20 AM Sunset: 07:18 PM |
Moonrise:07:04 PM Moonset: 07:27 AM Moon Phase ( Full Moon ) |
|
| 27 September 2026 Sunday | Sunny |
2.9 ° C (37.3°F) |
12.4 ° C (54.3°F) |
7.3 ° C (45.1°F) |
% 58 | 7% | 3 | Sunrise:07:21 AM Sunset: 07:16 PM |
Moonrise:07:22 PM Moonset: 08:36 AM Moon Phase ( Waning Gibbous ) |
|
| 28 September 2026 Monday | Patchy rain nearby |
4.3 ° C (39.7°F) |
6.8 ° C (44.3°F) |
6 ° C (42.8°F) |
% 74 | 75% | 2 | Sunrise:07:23 AM Sunset: 07:14 PM |
Moonrise:07:42 PM Moonset: 09:47 AM Moon Phase ( Waning Gibbous ) |
|
| 29 September 2026 Tuesday | Patchy rain nearby |
1.5 ° C (34.7°F) |
4.6 ° C (40.3°F) |
3 ° C (37.4°F) |
% 88 | 78% | 1 | Sunrise:07:24 AM Sunset: 07:12 PM |
Moonrise:08:07 PM Moonset: 11:01 AM Moon Phase ( Waning Gibbous ) |
|
| 30 September 2026 Wednesday | Sunny |
1.1 ° C (33.9°F) |
9.8 ° C (49.6°F) |
4.3 ° C (39.7°F) |
% 75 | 45% | 3 | Sunrise:07:25 AM Sunset: 07:10 PM |
Moonrise:08:41 PM Moonset: 12:16 PM Moon Phase ( Waning Gibbous ) |
|
| 01 October 2026 Thursday | Sunny |
2.1 ° C (35.8°F) |
17.1 ° C (62.8°F) |
8.8 ° C (47.8°F) |
% 53 | 2% | 5 | Sunrise:07:27 AM Sunset: 07:08 PM |
Moonrise:09:25 PM Moonset: 01:29 PM Moon Phase ( Last Quarter ) |
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