Fosston, CO Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Fosston, CO in one place.
Mostly sunny. High near 75, with temperatures falling to around 72 in the afternoon. East southeast wind 8 to 16 mph, with gusts as high as 25 mph.
Local Weather Overview
This forecast page for Fosston, CO 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: Sep 14, 2026 8:50 PM MDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Fosston, CO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 14, 2026 8:50 PM MDT
- Forecast office
- BOU
- Source
- NOAA / NWS
Daily Outlook
This Week in Fosston
Friday looks like the warmest upcoming period in Fosston at 85 degrees F.
Sunday Night is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Tuesday Night at about 8 to 17 mph ESE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 14, 2026 8:50 PM MDT
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- BOU
- Radar station
- KCYS
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy. Low around 50, with temperatures rising to around 52 overnight. East southeast wind 8 to 17 mph, with gusts as high as 28 mph.
Partly sunny, with a high near 84. South southeast wind 3 to 9 mph.
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 58. East southeast wind 6 to 9 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 78. Chance of precipitation is 40%.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 55.
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 85.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 52.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 49.
Mostly sunny, with a high near 77.
A slight chance of rain showers before midnight. Partly cloudy, with a low around 48.
Sunny, with a high near 77.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Sep 15
|
Mostly Sunny
|
75°F |
8 to 16 mph
ESE
|
|
Tuesday Night
Sep 15
|
Mostly Cloudy
|
50°F |
8 to 17 mph
ESE
|
|
Wednesday
Sep 16
|
Partly Sunny
|
84°F |
3 to 9 mph
SSE
|
|
Wednesday Night
Sep 16
|
Slight Chance Showers And Thunderstorms then Mostly Cloudy
|
58°F |
6 to 9 mph
ESE
|
|
Thursday
Sep 17
|
Partly Sunny then Chance Showers And Thunderstorms
|
78°F |
8 mph
ENE
|
|
Thursday Night
Sep 17
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
55°F |
2 to 8 mph
NNE
|
|
Friday
Sep 18
|
Partly Sunny then Chance Showers And Thunderstorms
|
85°F |
3 to 9 mph
WNW
|
|
Friday Night
Sep 18
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
52°F |
5 to 10 mph
WNW
|
|
Saturday
Sep 19
|
Mostly Sunny then Chance Showers And Thunderstorms
|
79°F |
7 to 12 mph
N
|
|
Saturday Night
Sep 19
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
49°F |
6 to 9 mph
NNW
|
|
Sunday
Sep 20
|
Mostly Sunny
|
77°F |
7 to 12 mph
NE
|
|
Sunday Night
Sep 20
|
Slight Chance Rain Showers then Partly Cloudy
|
48°F |
6 to 12 mph
ENE
|
|
Monday
Sep 21
|
Sunny
|
77°F |
6 to 14 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fosston.