Jamestown, CO Weather Forecast
Local 7-day forecast
Mostly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Jamestown, CO in one place.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77. North wind 1 to 6 mph. Chance of precipitation is 40%.
Local Weather Overview
This forecast page for Jamestown, 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: Jul 23, 2026 1:19 AM MDT.
The active forecast window currently covers Jul 24 to Jul 29, 2026 for Jamestown, CO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 29, 2026
- Latest sync
- Jul 23, 2026 1:19 AM MDT
- Forecast office
- BOU
- Source
- NOAA / NWS
Daily Outlook
This Week in Jamestown
Sunday looks like the warmest upcoming period in Jamestown at 83 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Friday at about 1 to 6 mph N.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 23, 2026 1:19 AM MDT
- Coverage
- 6 days
- Time zone
- America/Denver
- Forecast office
- BOU
- Radar station
- KFTG
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 62. Southwest wind around 3 mph.
A chance of showers and thunderstorms after noon. Sunny, with a high near 81. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 63.
Showers and thunderstorms likely after noon. Mostly sunny, with a high near 83.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 63.
Showers and thunderstorms likely after noon. Partly sunny, with a high near 81.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
A slight chance of rain showers before noon, then showers and thunderstorms. Partly sunny, with a high near 77.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Showers and thunderstorms likely after noon. Partly sunny, with a high near 77.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Mostly Sunny then Chance Showers And Thunderstorms
|
77°F |
1 to 6 mph
N
|
|
Friday Night
Jul 24
|
Partly Cloudy
|
62°F |
3 mph
SW
|
|
Saturday
Jul 25
|
Sunny then Chance Showers And Thunderstorms
|
81°F |
1 to 5 mph
SSE
|
|
Saturday Night
Jul 25
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
63°F |
2 to 6 mph
SW
|
|
Sunday
Jul 26
|
Mostly Sunny then Showers And Thunderstorms Likely
|
83°F |
1 to 6 mph
NNW
|
|
Sunday Night
Jul 26
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
63°F |
1 to 5 mph
WNW
|
|
Monday
Jul 27
|
Partly Sunny then Showers And Thunderstorms Likely
|
81°F |
1 to 5 mph
N
|
|
Monday Night
Jul 27
|
Chance Showers And Thunderstorms
|
61°F |
2 mph
WNW
|
|
Tuesday
Jul 28
|
Showers And Thunderstorms
|
77°F |
1 to 5 mph
N
|
|
Tuesday Night
Jul 28
|
Chance Showers And Thunderstorms
|
59°F |
2 mph
W
|
|
Wednesday
Jul 29
|
Partly Sunny then Showers And Thunderstorms Likely
|
77°F |
1 to 5 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Jamestown.