Weather WorldJamestown, ID 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
Jamestown, ID Weather Forecast
Jamestown, ID Weather Forecast Date: 257 AM MDT Fri Sep 18 2026
The area/counties/county of: Lower Snake River Plain, including: Pocatello, Blackfoot, American Falls, Shelley, and Fort Hall.or toggle through each period.
Today... Mostly sunny with a slight chance of rain in the morning...Then rain showers likely and a chance of thunderstorms in the afternoon. Highs 66 to 73. Northeast winds up to 10 mph... Shifting to south around 10 mph in the afternoon.
Tonight... Mostly cloudy. A chance of showers and thunderstorms in the evening...Then a chance of rain showers and a slight chance of thunderstorms after midnight. Colder. Lows 41 to 50. South winds up to 10 mph. Chance of precipitation 50%.
Saturday... Mostly cloudy. A slight chance of rain in the morning...Then a chance of rain showers and a slight chance of thunderstorms in the afternoon. Highs 60 to 67. Southwest winds around 10 mph. Chance of precipitation 50%.
Saturday Night... Partly cloudy. Lows 39 to 48. Southwest winds up to 10 mph.
Sunday... Mostly sunny. Warmer. Highs 67 to 74. Light and variable winds.
Sunday Night... Mostly clear. Lows 40 to 49. Highs 71 to 78.
Monday... Mostly clear. Lows 40 to 49. Highs 71 to 78.
Monday Night... Partly cloudy. Lows 42 to 51. Highs 72 to 79.
Tuesday... Partly cloudy. Lows 42 to 51. Highs 72 to 79.
Wednesday... Sunny. Highs 73 to 80.
Wednesday Night... Mostly clear. Lows 42 to 52. Highs 75 to 82.
POP = Probability of Precipitation
Jamestown Radar Loop
Use the map search tool if you want to place a location marker on the radar map...