Fallon County, MT Weather Forecast
County weather hub
Sunny
Compare major city weather across Fallon County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 103. East wind 8 to 13 mph.
County Weather Overview
This county weather page brings together forecast coverage for Fallon County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 0 of 0 mapped cities in Fallon County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 14 to Jul 19, 2026
- Latest sync
- Jul 13, 2026 8:37 AM MDT
- Forecast office
- BYZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Fallon County
Tuesday looks like the warmest upcoming period in Fallon County at 103 degrees F.
Sunday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Tuesday Night at about 13 to 16 mph ESE.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 13, 2026 8:37 AM MDT
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- BYZ
- Radar station
- KGGW
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 71. East southeast wind 13 to 16 mph.
Sunny, with a high near 101. Southeast wind around 12 mph.
Partly cloudy, with a low around 68. Southeast wind 9 to 14 mph.
Mostly sunny, with a high near 93. Northwest wind around 10 mph.
A slight chance of rain showers after midnight. Partly cloudy, with a low around 65. East northeast wind around 9 mph. Chance of precipitation is 20%.
Mostly sunny, with a high near 95. East southeast wind 7 to 10 mph.
A slight chance of rain showers after midnight. Partly cloudy, with a low around 65. East wind around 13 mph. Chance of precipitation is 20%.
Mostly sunny, with a high near 93. North northwest wind 12 to 15 mph.
Partly cloudy, with a low around 64. Northwest wind 7 to 15 mph.
Sunny, with a high near 90. Northwest wind 7 to 13 mph.
Partly cloudy, with a low around 62. North northeast wind 5 to 14 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
103°F |
8 to 13 mph
E
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
71°F |
13 to 16 mph
ESE
|
|
Wednesday
Jul 15
|
Sunny
|
101°F |
12 mph
SE
|
|
Wednesday Night
Jul 15
|
Partly Cloudy
|
68°F |
9 to 14 mph
SE
|
|
Thursday
Jul 16
|
Mostly Sunny
|
93°F |
10 mph
NW
|
|
Thursday Night
Jul 16
|
Partly Cloudy then Slight Chance Rain Showers
|
65°F |
9 mph
ENE
|
|
Friday
Jul 17
|
Mostly Sunny
|
95°F |
7 to 10 mph
ESE
|
|
Friday Night
Jul 17
|
Partly Cloudy then Slight Chance Rain Showers
|
65°F |
13 mph
E
|
|
Saturday
Jul 18
|
Mostly Sunny
|
93°F |
12 to 15 mph
NNW
|
|
Saturday Night
Jul 18
|
Partly Cloudy
|
64°F |
7 to 15 mph
NW
|
|
Sunday
Jul 19
|
Sunny
|
90°F |
7 to 13 mph
NW
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
62°F |
5 to 14 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fallon County.
Nearby forecast pages are not available for this location yet.
Coverage
Forecast coverage currently spans 0 of 0 mapped cities in Fallon County.
