Colby, CO Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Colby, CO in one place.
A chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Southeast wind around 5 mph. Chance of precipitation is 50%.
Local Weather Overview
This forecast page for Colby, 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 15, 2026 10:32 AM MDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for Colby, CO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 10:32 AM MDT
- Forecast office
- GJT
- Source
- NOAA / NWS
Daily Outlook
This Week in Colby
Sunday looks like the warmest upcoming period in Colby at 79 degrees F.
Saturday Night is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Wednesday at about 5 mph SE.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 10:32 AM MDT
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- GJT
- Radar station
- KGJX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 9pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 57. East southeast wind 0 to 5 mph. Chance of precipitation is 60%.
Rain showers likely before 9am, then showers and thunderstorms likely. Mostly cloudy, with a high near 77. Southeast wind 0 to 5 mph. Chance of precipitation is 70%.
A chance of showers and thunderstorms before 9pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Showers and thunderstorms likely before noon, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 78.
A chance of showers and thunderstorms before midnight, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
A chance of showers and thunderstorms before noon, then a chance of showers and thunderstorms. Partly sunny, with a high near 77.
Mostly clear, with a low around 50.
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 79.
Mostly clear, with a low around 51.
A slight chance of rain showers before noon, then a chance of showers and thunderstorms. Mostly sunny, with a high near 78.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Chance Showers And Thunderstorms
|
78°F |
5 mph
SE
|
|
Wednesday Night
Sep 16
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
57°F |
0 to 5 mph
ESE
|
|
Thursday
Sep 17
|
Showers And Thunderstorms Likely
|
77°F |
0 to 5 mph
SE
|
|
Thursday Night
Sep 17
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
54°F |
5 mph
SE
|
|
Friday
Sep 18
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
78°F |
5 mph
S
|
|
Friday Night
Sep 18
|
Chance Showers And Thunderstorms
|
52°F |
0 to 5 mph
NNE
|
|
Saturday
Sep 19
|
Chance Showers And Thunderstorms
|
77°F |
0 to 5 mph
SSW
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
50°F |
0 to 5 mph
NNE
|
|
Sunday
Sep 20
|
Sunny then Slight Chance Showers And Thunderstorms
|
79°F |
0 to 5 mph
S
|
|
Sunday Night
Sep 20
|
Mostly Clear
|
51°F |
0 to 5 mph
NNE
|
|
Monday
Sep 21
|
Chance Showers And Thunderstorms
|
78°F |
0 to 5 mph
SSE
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms
|
51°F |
0 to 5 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Colby.