Simms Weather Forecast 15 Days, Weather in Simms Today
Current weather conditions and 15 day weather forecast for Simms, 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.
Current weather conditions at Simms
| 05 May 2026 Tuesday 3.3 ° C / 37.9°F  Clear |
Feels Like : -1 ° C / 30.2°F Humidity : % 48 Pressure : 1018 mb Wind Speed : 19.4 kmph / 12.1 miles from ENE  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 25 |
15 day weather forecast for Simms, MT, USA
Weather Forecast for next 15 Days for Simms 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 Simms, Montana 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 05 May 2026 Tuesday | Sunny |
0.6 ° C (33.1°F) |
10.6 ° C (51.1°F) |
5.8 ° C (42.4°F) |
% 42 | 0% | 5.3 | Sunrise:06:04 AM Sunset: 08:45 PM |
Moonrise:12:30 AM Moonset: 07:58 AM Moon Phase ( Waning Gibbous ) |
|
| 06 May 2026 Wednesday |  Patchy rain nearby |
2.8 ° C (37.1°F) |
20.3 ° C (68.5°F) |
11 ° C (51.9°F) |
% 44 | 85% | 6.6 | Sunrise:06:02 AM Sunset: 08:46 PM |
Moonrise:01:19 AM Moonset: 08:55 AM Moon Phase ( Waning Gibbous ) |
|
| 07 May 2026 Thursday | Patchy rain nearby |
11.1 ° C (52°F) |
14.7 ° C (58.5°F) |
12.9 ° C (55.2°F) |
% 66 | 80% | 5.5 | Sunrise:06:01 AM Sunset: 08:48 PM |
Moonrise:01:57 AM Moonset: 10:00 AM Moon Phase ( Waning Gibbous ) |
|
| 08 May 2026 Friday | Patchy rain nearby |
10.4 ° C (50.7°F) |
20.5 ° C (68.8°F) |
14.6 ° C (58.3°F) |
% 56 | 81% | 0 | Sunrise:05:59 AM Sunset: 08:49 PM |
Moonrise:02:27 AM Moonset: 11:09 AM Moon Phase ( Waning Gibbous ) |
|
| 09 May 2026 Saturday | Patchy rain nearby |
3.9 ° C (38.9°F) |
16.2 ° C (61.2°F) |
10.3 ° C (50.6°F) |
% 53 | 62% | 3 | Sunrise:05:58 AM Sunset: 08:50 PM |
Moonrise:02:51 AM Moonset: 12:21 PM Moon Phase ( Last Quarter ) |
|
| 10 May 2026 Sunday | Sunny |
6.7 ° C (44.1°F) |
20.6 ° C (69.1°F) |
13.7 ° C (56.7°F) |
% 51 | 0% | 4 | Sunrise:05:56 AM Sunset: 08:52 PM |
Moonrise:03:10 AM Moonset: 01:33 PM Moon Phase ( Waning Crescent ) |
|
| 11 May 2026 Monday | Sunny |
8.3 ° C (47°F) |
21.7 ° C (71.1°F) |
15.2 ° C (59.4°F) |
% 47 | 0% | 5 | Sunrise:05:55 AM Sunset: 08:53 PM |
Moonrise:03:28 AM Moonset: 02:46 PM Moon Phase ( Waning Crescent ) |
|
| 12 May 2026 Tuesday | Patchy rain nearby |
6.1 ° C (43°F) |
12.7 ° C (54.9°F) |
10.3 ° C (50.5°F) |
% 69 | 86% | 3 | Sunrise:05:54 AM Sunset: 08:54 PM |
Moonrise:03:44 AM Moonset: 04:02 PM Moon Phase ( Waning Crescent ) |
|
| 13 May 2026 Wednesday | Patchy rain nearby |
2.8 ° C (37°F) |
4 ° C (39.1°F) |
4 ° C (39.1°F) |
% 82 | 87% | 1 | Sunrise:05:52 AM Sunset: 08:56 PM |
Moonrise:04:00 AM Moonset: 05:21 PM Moon Phase ( Waning Crescent ) |
|
| 14 May 2026 Thursday | Patchy rain nearby |
-1.2 ° C (29.8°F) |
10.3 ° C (50.5°F) |
4.6 ° C (40.3°F) |
% 58 | 88% | 1 | Sunrise:05:51 AM Sunset: 08:57 PM |
Moonrise:04:18 AM Moonset: 06:44 PM Moon Phase ( Waning Crescent ) |
|
| 15 May 2026 Friday | Patchy rain nearby |
2.6 ° C (36.6°F) |
10.9 ° C (51.6°F) |
5.8 ° C (42.4°F) |
% 63 | 84% | 2 | Sunrise:05:50 AM Sunset: 08:58 PM |
Moonrise:04:41 AM Moonset: 08:12 PM Moon Phase ( Waning Crescent ) |
|
| 16 May 2026 Saturday | Sunny |
1.9 ° C (35.5°F) |
14.8 ° C (58.6°F) |
8.2 ° C (46.8°F) |
% 50 | 0% | 3 | Sunrise:05:49 AM Sunset: 08:59 PM |
Moonrise:05:10 AM Moonset: 09:41 PM Moon Phase ( New Moon ) |
|
| 17 May 2026 Sunday | Sunny |
5.6 ° C (42°F) |
17 ° C (62.5°F) |
11.3 ° C (52.3°F) |
% 45 | 0% | 4 | Sunrise:05:48 AM Sunset: 09:01 PM |
Moonrise:05:50 AM Moonset: 11:03 PM Moon Phase ( Waxing Crescent ) |
|
| 18 May 2026 Monday |  Partly Cloudy |
7 ° C (44.5°F) |
17.9 ° C (64.3°F) |
11.9 ° C (53.3°F) |
% 59 | 0% | 4 | Sunrise:05:46 AM Sunset: 09:02 PM |
Moonrise:06:44 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
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