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City of Firth, IDFirth, ID 7-Day Weather Forecast
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Firth Weather Forecast
Firth, ID Weather Forecast Date: 157 PM MDT Thu Sep 17 2026
Weather forecast for Firth, ID
Tonight Lo: 53°F Lo: 12°C |
Tonight... Numerous rain showers and isolated thunderstorms in the evening...Then scattered rain showers and isolated thunderstorms after midnight. Lows 49 to 56. East winds 10 to 15 mph...Shifting to northeast after midnight. |
Fri Hi: 70°FHi: 21°C Lo: 47°F Lo: 8°C |
Friday... Partly sunny. A slight chance of rain showers in the morning...Then a chance of showers and thunderstorms in the afternoon. Highs 66 to 73. Northeast winds up to 10 mph... Shifting to southwest around 10 mph in the afternoon. Chance of precipitation 50%. |
| Sat Hi: 65°FHi: 18°C Lo: 44°F Lo: 7°C |
Saturday... Partly sunny with a chance of rain showers and a slight chance of thunderstorms. Highs 61 to 68. Southwest winds around 10 mph. Chance of precipitation 50%. |
Sun Hi: 73°FHi: 23°C Lo: 46°F Lo: 8°C |
Sunday... Mostly sunny. Highs 69 to 76. |
| Mon Hi: 75°FHi: 24°C Lo: 47°F Lo: 8°C |
Monday... Mostly clear. Lows 41 to 49. Highs 71 to 78. |
Tue Hi: 76°FHi: 24°C Lo: 47°F Lo: 8°C |
Tuesday... Partly cloudy. Lows 42 to 51. Highs 72 to 79. |
| Wed Hi: 77°FHi: 25°C Lo: 47°F Lo: 8°C |
Wednesday... Mostly clear. Lows 41 to 51. Highs 72 to 80. |
| Thu Hi: 77°FHi: 25°C Lo: 47°F Lo: 8°C |
Thursday... Mostly clear. Lows 41 to 51. Highs 72 to 80. |
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