Jefferson County, MT Weather Forecast
County weather hub
Rain Showers
Compare major city weather across Jefferson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Rain showers before noon, then showers and thunderstorms. Cloudy, with a high near 60. West northwest wind around 9 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
- May 30 to Jun 2, 2026
- Latest sync
- May 27, 2026 1:53 PM MDT
- Forecast office
- TFX
- Source
- NOAA / NWS
Daily Outlook
This Week in Jefferson County
Tuesday looks like the warmest upcoming period in Jefferson County at 68 degrees F.
Sunday Night is the coolest period ahead with temperatures near 41 degrees F.
The strongest winds are forecast for Saturday Night at about 10 mph WNW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- May 27, 2026 1:53 PM MDT
- Coverage
- 5 days
- Time zone
- America/Denver
- Forecast office
- TFX
- Radar station
- KTFX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms before midnight, then rain likely. Cloudy, with a low around 42. West northwest wind around 10 mph, with gusts as high as 23 mph.
Rain likely before noon, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 58.
A chance of rain. Mostly cloudy, with a low around 41.
A chance of rain before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 63.
A chance of rain before midnight. Mostly cloudy, with a low around 42.
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 68.
A slight chance of rain before midnight. Partly cloudy, with a low around 44.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Rain Showers
|
60°F |
9 mph
WNW
|
|
Saturday Night
May 30
|
Showers And Thunderstorms then Light Rain Likely
|
42°F |
10 mph
WNW
|
|
Sunday
May 31
|
Light Rain Likely then Chance Showers And Thunderstorms
|
58°F |
9 mph
W
|
|
Sunday Night
May 31
|
Chance Light Rain
|
41°F |
3 to 7 mph
NW
|
|
Monday
Jun 1
|
Chance Light Rain then Chance Showers And Thunderstorms
|
63°F |
5 to 8 mph
WSW
|
|
Monday Night
Jun 1
|
Chance Light Rain then Mostly Cloudy
|
42°F |
2 to 7 mph
NNW
|
|
Tuesday
Jun 2
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
68°F |
3 to 8 mph
WSW
|
|
Tuesday Night
Jun 2
|
Slight Chance Light Rain then Partly Cloudy
|
44°F |
2 to 7 mph
NNE
|
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: 1,661.
