Firth Weather Forecast 15 Days, Weather in Firth Today
Current weather conditions and 15 day weather forecast for Firth, Idaho, 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 Firth
| 09 February 2026 Monday 2.2 ° C / 36°F  Overcast |
Feels Like : -4.3 ° C / 24.2°F Humidity : % 79 Pressure : 1019 mb Wind Speed : 38.5 kmph / 23.9 miles from SW  Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15 day weather forecast for Firth, ID, USA
Weather Forecast for next 15 Days for Firth 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 Firth, Idaho 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 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 09 February 2026 Monday |  Sunny |
-1 ° C (30.2°F) |
10.3 ° C (50.5°F) |
6.1 ° C (43°F) |
% 58 | 0% | 0.4 | Sunrise:07:35 AM Sunset: 05:52 PM |
Moonrise:01:42 AM Moonset: 10:49 AM Moon Phase ( Last Quarter ) |
|
| 10 February 2026 Tuesday | Overcast |
-2.1 ° C (28.2°F) |
5.5 ° C (41.9°F) |
0.8 ° C (33.4°F) |
% 75 | 0% | 0.4 | Sunrise:07:34 AM Sunset: 05:53 PM |
Moonrise:02:46 AM Moonset: 11:23 AM Moon Phase ( Waning Crescent ) |
|
| 11 February 2026 Wednesday |  Heavy rain |
-0.6 ° C (31°F) |
5.8 ° C (42.4°F) |
2.1 ° C (35.9°F) |
% 93 | 88% | 0.2 | Sunrise:07:32 AM Sunset: 05:54 PM |
Moonrise:03:48 AM Moonset: 12:04 PM Moon Phase ( Waning Crescent ) |
|
| 12 February 2026 Thursday |  Light snow |
-1.4 ° C (29.5°F) |
1.4 ° C (34.4°F) |
0.5 ° C (32.8°F) |
% 94 | 86% | 0.2 | Sunrise:07:31 AM Sunset: 05:56 PM |
Moonrise:04:44 AM Moonset: 12:54 PM Moon Phase ( Waning Crescent ) |
|
| 13 February 2026 Friday |  Patchy rain nearby |
-2.1 ° C (28.3°F) |
5.5 ° C (41.8°F) |
1.2 ° C (34.2°F) |
% 76 | 83% | 0 | Sunrise:07:29 AM Sunset: 05:57 PM |
Moonrise:05:33 AM Moonset: 01:53 PM Moon Phase ( Waning Crescent ) |
|
| 14 February 2026 Saturday | Patchy rain nearby |
-1.2 ° C (29.8°F) |
4.3 ° C (39.7°F) |
1.9 ° C (35.4°F) |
% 72 | 65% | 1 | Sunrise:07:28 AM Sunset: 05:58 PM |
Moonrise:06:13 AM Moonset: 02:59 PM Moon Phase ( Waning Crescent ) |
|
| 15 February 2026 Sunday |  Moderate or heavy snow showers |
-2.2 ° C (28.1°F) |
1.3 ° C (34.3°F) |
-0.4 ° C (31.3°F) |
% 75 | 80% | 1 | Sunrise:07:27 AM Sunset: 06:00 PM |
Moonrise:06:46 AM Moonset: 04:09 PM Moon Phase ( Waning Crescent ) |
|
| 16 February 2026 Monday |  Light freezing rain |
-5.3 ° C (22.5°F) |
1.3 ° C (34.3°F) |
-1.9 ° C (28.6°F) |
% 63 | 82% | 1 | Sunrise:07:25 AM Sunset: 06:01 PM |
Moonrise:07:13 AM Moonset: 05:21 PM Moon Phase ( Waning Crescent ) |
|
| 17 February 2026 Tuesday |  Heavy snow |
-2.4 ° C (27.7°F) |
1.3 ° C (34.4°F) |
-0.4 ° C (31.3°F) |
% 86 | 86% | 1 | Sunrise:07:24 AM Sunset: 06:02 PM |
Moonrise:07:37 AM Moonset: 06:32 PM Moon Phase ( New Moon ) |
|
| 18 February 2026 Wednesday |  Moderate snow |
-8.5 ° C (16.8°F) |
1 ° C (33.8°F) |
-3.5 ° C (25.6°F) |
% 86 | 77% | 1 | Sunrise:07:22 AM Sunset: 06:03 PM |
Moonrise:07:57 AM Moonset: 07:44 PM Moon Phase ( Waxing Crescent ) |
|
| 19 February 2026 Thursday |  Patchy moderate snow |
-6 ° C (21.2°F) |
-3.6 ° C (25.6°F) |
-4.9 ° C (23.2°F) |
% 89 | 61% | 1 | Sunrise:07:21 AM Sunset: 06:05 PM |
Moonrise:08:17 AM Moonset: 08:56 PM Moon Phase ( Waxing Crescent ) |
|
| 20 February 2026 Friday | Moderate snow |
-6 ° C (21.3°F) |
0.5 ° C (32.9°F) |
-2.1 ° C (28.2°F) |
% 92 | 84% | 1 | Sunrise:07:19 AM Sunset: 06:06 PM |
Moonrise:08:37 AM Moonset: 10:10 PM Moon Phase ( Waxing Crescent ) |
|
| 21 February 2026 Saturday | Overcast |
0.1 ° C (32.2°F) |
2.8 ° C (37°F) |
1.6 ° C (34.8°F) |
% 86 | 0% | 1 | Sunrise:07:18 AM Sunset: 06:07 PM |
Moonrise:09:00 AM Moonset: 11:27 PM Moon Phase ( Waxing Crescent ) |
|
| 22 February 2026 Sunday | Overcast |
-1.2 ° C (29.9°F) |
5.2 ° C (41.3°F) |
0.8 ° C (33.4°F) |
% 83 | 0% | 1 | Sunrise:07:16 AM Sunset: 06:09 PM |
Moonrise:09:26 AM Moonset: No moonset Moon Phase ( Waxing Crescent ) |
|
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