Current weather conditions and 15 day weather forecast for Fallon, 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.
| 03 August 2026 Monday 14 ° C / 57.2°F ![]() Patchy rain nearby |
Feels Like : 8.9 ° C / 48°F Humidity : % 83 Pressure : 1019 mb Wind Speed : 28.4 kmph / 17.7 miles from NW ![]() Visibility : 10 km Precipitation (rainfall) : 1.03 mm Cloud (%) : 79 |
| Date | Weather forecast | Low temperature | High temperature | Avg. temperature | Humidity | Chance of rain | UV Index | Sun Position | Moon Position | |
|---|---|---|---|---|---|---|---|---|---|---|
| 03 August 2026 Monday | Sunny |
11.9 ° C (53.4°F) |
22.8 ° C (73°F) |
17.9 ° C (64.2°F) |
% 53 | 57% | 6.9 | Sunrise:05:43 AM Sunset: 08:30 PM |
Moonrise:10:21 PM Moonset: 11:17 AM Moon Phase ( Last Quarter ) |
|
| 04 August 2026 Tuesday | Sunny |
9.8 ° C (49.6°F) |
25 ° C (77.1°F) |
18.2 ° C (64.7°F) |
% 40 | 1% | 6.8 | Sunrise:05:44 AM Sunset: 08:28 PM |
Moonrise:10:40 PM Moonset: 12:26 PM Moon Phase ( Last Quarter ) |
|
| 05 August 2026 Wednesday | Sunny |
14.9 ° C (58.8°F) |
29.6 ° C (85.3°F) |
23.1 ° C (73.5°F) |
% 23 | 1% | 6.2 | Sunrise:05:45 AM Sunset: 08:27 PM |
Moonrise:11:02 PM Moonset: 01:40 PM Moon Phase ( Last Quarter ) |
|
| 06 August 2026 Thursday | Sunny |
19.1 ° C (66.3°F) |
34.2 ° C (93.6°F) |
26.9 ° C (80.5°F) |
% 19 | 1% | 7 | Sunrise:05:46 AM Sunset: 08:25 PM |
Moonrise:11:32 PM Moonset: 02:56 PM Moon Phase ( Last Quarter ) |
|
| 07 August 2026 Friday | Sunny |
17.5 ° C (63.5°F) |
38.3 ° C (101°F) |
28.3 ° C (82.9°F) |
% 24 | 1% | 9 | Sunrise:05:48 AM Sunset: 08:24 PM |
Moonrise:Does not rise today Moonset: 04:13 PM Moon Phase ( Waning Crescent ) |
|
| 08 August 2026 Saturday | Sunny |
17 ° C (62.7°F) |
29.9 ° C (85.9°F) |
24.3 ° C (75.8°F) |
% 33 | 1% | 7 | Sunrise:05:49 AM Sunset: 08:22 PM |
Moonrise:12:13 AM Moonset: 05:25 PM Moon Phase ( Waning Crescent ) |
|
| 09 August 2026 Sunday | Sunny |
15.8 ° C (60.5°F) |
29.6 ° C (85.3°F) |
23.1 ° C (73.6°F) |
% 35 | 1% | 7 | Sunrise:05:50 AM Sunset: 08:21 PM |
Moonrise:01:10 AM Moonset: 06:27 PM Moon Phase ( Waning Crescent ) |
|
| 10 August 2026 Monday | Sunny |
16.4 ° C (61.5°F) |
29.3 ° C (84.7°F) |
23 ° C (73.4°F) |
% 34 | 2% | 7 | Sunrise:05:51 AM Sunset: 08:19 PM |
Moonrise:02:22 AM Moonset: 07:14 PM Moon Phase ( New Moon ) |
|
| 11 August 2026 Tuesday | Sunny |
19.2 ° C (66.6°F) |
34.5 ° C (94.1°F) |
27.1 ° C (80.8°F) |
% 33 | 1% | 8 | Sunrise:05:53 AM Sunset: 08:18 PM |
Moonrise:03:47 AM Moonset: 07:50 PM Moon Phase ( New Moon ) |
|
| 12 August 2026 Wednesday | Sunny |
21.1 ° C (69.9°F) |
40.5 ° C (104.8°F) |
31.2 ° C (88.2°F) |
% 32 | 1% | 10 | Sunrise:05:54 AM Sunset: 08:16 PM |
Moonrise:05:16 AM Moonset: 08:17 PM Moon Phase ( New Moon ) |
|
| 13 August 2026 Thursday | Partly Cloudy |
27.2 ° C (81°F) |
41.6 ° C (106.9°F) |
34 ° C (93.3°F) |
% 26 | 3% | 10 | Sunrise:05:55 AM Sunset: 08:14 PM |
Moonrise:06:44 AM Moonset: 08:40 PM Moon Phase ( New Moon ) |
|
| 14 August 2026 Friday | Sunny |
22.7 ° C (72.9°F) |
37.6 ° C (99.7°F) |
30.1 ° C (86.1°F) |
% 37 | 57% | 9 | Sunrise:05:57 AM Sunset: 08:13 PM |
Moonrise:08:09 AM Moonset: 08:59 PM Moon Phase ( Waxing Crescent ) |
|
| 15 August 2026 Saturday | Sunny |
20.2 ° C (68.3°F) |
30.7 ° C (87.3°F) |
24.9 ° C (76.8°F) |
% 48 | 3% | 8 | Sunrise:05:58 AM Sunset: 08:11 PM |
Moonrise:09:31 AM Moonset: 09:17 PM Moon Phase ( Waxing Crescent ) |
|
| 16 August 2026 Sunday | Sunny |
21.8 ° C (71.3°F) |
38.9 ° C (102°F) |
30.6 ° C (87°F) |
% 33 | 1% | 9 | Sunrise:05:59 AM Sunset: 08:09 PM |
Moonrise:10:51 AM Moonset: 09:36 PM Moon Phase ( Waxing Crescent ) |
|