Jefferson County, ID Weather Forecast
County weather hub
Mostly Clear
Compare major city weather across Jefferson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly clear. Low around 24, with temperatures rising to around 26 overnight. Northeast wind around 6 mph.
County Weather Overview
This county weather page brings together forecast coverage for Jefferson County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Jefferson County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 19 to Apr 25, 2026
- Latest sync
- Apr 19, 2026 6:06 AM MDT
- Forecast office
- PIH
- Source
- NOAA / NWS
Daily Outlook
This Week in Jefferson County
Tuesday looks like the warmest upcoming period in Jefferson County at 78 degrees F.
Overnight is the coolest period ahead with temperatures near 24 degrees F.
The strongest winds are forecast for Wednesday at about 14 to 32 mph SSW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 19, 2026 6:06 AM MDT
- Coverage
- 7 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
Sunny, with a high near 67. East wind around 6 mph.
Mostly cloudy. Low around 33, with temperatures rising to around 35 overnight. East wind around 6 mph.
Sunny, with a high near 76. East wind 3 to 12 mph, with gusts as high as 18 mph.
Mostly clear, with a low around 38. South southeast wind 6 to 15 mph, with gusts as high as 22 mph.
Mostly sunny, with a high near 78.
A slight chance of rain after midnight. Mostly cloudy, with a low around 41. Chance of precipitation is 20%.
A chance of rain before noon, then showers and thunderstorms likely. Mostly cloudy, with a high near 58. Chance of precipitation is 70%.
Rain likely. Mostly cloudy, with a low around 35. Chance of precipitation is 70%.
Rain likely. Mostly cloudy, with a high near 56. Chance of precipitation is 70%.
A chance of rain before midnight, then a slight chance of rain and snow. Mostly cloudy, with a low around 27. Chance of precipitation is 30%.
A slight chance of snow before noon, then a slight chance of rain and snow. Mostly sunny, with a high near 52. Chance of precipitation is 20%.
Partly cloudy, with a low around 26.
Mostly sunny, with a high near 57.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Apr 19
|
Mostly Clear
|
24°F |
6 mph
NE
|
|
Sunday
Apr 19
|
Sunny
|
67°F |
6 mph
E
|
|
Sunday Night
Apr 19
|
Mostly Cloudy
|
33°F |
6 mph
E
|
|
Monday
Apr 20
|
Sunny
|
76°F |
3 to 12 mph
E
|
|
Monday Night
Apr 20
|
Mostly Clear
|
38°F |
6 to 15 mph
SSE
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
78°F |
6 to 23 mph
E
|
|
Tuesday Night
Apr 21
|
Mostly Cloudy then Slight Chance Light Rain
|
41°F |
14 to 26 mph
S
|
|
Wednesday
Apr 22
|
Chance Light Rain then Showers And Thunderstorms Likely
|
58°F |
14 to 32 mph
SSW
|
|
Wednesday Night
Apr 22
|
Light Rain Likely
|
35°F |
22 to 32 mph
SW
|
|
Thursday
Apr 23
|
Light Rain Likely
|
56°F |
16 to 21 mph
W
|
|
Thursday Night
Apr 23
|
Chance Light Rain then Slight Chance Rain And Snow
|
27°F |
13 to 20 mph
NNW
|
|
Friday
Apr 24
|
Slight Chance Light Snow
|
52°F |
14 mph
NNW
|
|
Friday Night
Apr 24
|
Partly Cloudy
|
26°F |
12 to 16 mph
NNW
|
|
Saturday
Apr 25
|
Mostly Sunny
|
57°F |
13 mph
NNW
|
Major City Forecasts
Live forecast snapshots for major cities across Jefferson County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Jefferson County.
Largest mapped city population in this region: 4,292.
