Firth, ID Weather Forecast
Local 7-day forecast
Chance Light Rain then Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Firth, ID in one place.
A chance of rain before noon, then showers and thunderstorms likely. Mostly cloudy, with a high near 55. Chance of precipitation is 70%.
Local Weather Overview
This forecast page for Firth, ID is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 19, 2026 6:12 AM MDT.
The active forecast window currently covers Apr 22 to Apr 25, 2026 for Firth, ID.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 22 to Apr 25, 2026
- Latest sync
- Apr 19, 2026 6:12 AM MDT
- Forecast office
- PIH
- Source
- NOAA / NWS
Daily Outlook
This Week in Firth
Saturday looks like the warmest upcoming period in Firth at 56 degrees F.
Friday Night is the coolest period ahead with temperatures near 27 degrees F.
The strongest winds are forecast for Wednesday at about 12 to 25 mph SSW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 19, 2026 6:12 AM MDT
- Coverage
- 4 days
- Time zone
- America/Boise
- Forecast office
- PIH
- Radar station
- KSFX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Rain likely. Mostly cloudy, with a low around 34. Chance of precipitation is 70%.
Rain likely. Mostly cloudy, with a high near 53. Chance of precipitation is 70%.
A chance of rain before midnight. Mostly cloudy, with a low around 28. Chance of precipitation is 30%.
A slight chance of snow before 9am, then a slight chance of rain and snow. Mostly sunny, with a high near 51. Chance of precipitation is 20%.
Partly cloudy, with a low around 27.
Sunny, with a high near 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Chance Light Rain then Showers And Thunderstorms Likely
|
55°F |
12 to 25 mph
SSW
|
|
Wednesday Night
Apr 22
|
Light Rain Likely
|
34°F |
18 to 23 mph
SW
|
|
Thursday
Apr 23
|
Light Rain Likely
|
53°F |
17 mph
SW
|
|
Thursday Night
Apr 23
|
Chance Light Rain then Mostly Cloudy
|
28°F |
8 to 15 mph
W
|
|
Friday
Apr 24
|
Slight Chance Light Snow
|
51°F |
8 to 12 mph
NNW
|
|
Friday Night
Apr 24
|
Partly Cloudy
|
27°F |
8 to 13 mph
NW
|
|
Saturday
Apr 25
|
Sunny
|
56°F |
10 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Firth.