Larimer County, CO Weather Forecast
County weather hub
Chance Showers And Thunderstorms
Compare major city weather across Larimer County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms. Partly sunny. High near 70, with temperatures falling to around 64 in the afternoon. Southeast wind around 15 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Larimer County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 4 of 4 mapped cities in Larimer County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 26 to Jun 1, 2026
- Latest sync
- May 26, 2026 2:39 PM MDT
- Forecast office
- BOU
- Source
- NOAA / NWS
Daily Outlook
This Week in Larimer County
Friday looks like the warmest upcoming period in Larimer County at 73 degrees F.
Saturday Night is the coolest period ahead with temperatures near 46 degrees F.
The strongest winds are forecast for This Afternoon at about 15 mph SE.
Precipitation is mentioned in 14 upcoming forecast periods.
Forecast Details
- Last updated
- May 26, 2026 2:39 PM MDT
- Coverage
- 8 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
A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 47. South wind 0 to 12 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before noon, then showers and thunderstorms likely. Cloudy. High near 65, with temperatures falling to around 60 in the afternoon. Southeast wind 0 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 48. South southeast wind 1 to 7 mph, with gusts as high as 16 mph. Chance of precipitation is 50%.
Showers and thunderstorms likely after noon. Partly sunny, with a high near 70. Southeast wind 1 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 49. Chance of precipitation is 40%.
Showers and thunderstorms likely after noon. Mostly sunny, with a high near 73.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 47.
A chance of rain showers before noon, then showers and thunderstorms likely. Partly sunny, with a high near 68.
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46.
Showers and thunderstorms likely after noon. Partly sunny, with a high near 68.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 47.
Showers and thunderstorms likely after noon. Partly sunny, with a high near 65.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 47.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
May 26
|
Chance Showers And Thunderstorms
|
70°F |
15 mph
SE
|
|
Tonight
May 26
|
Chance Showers And Thunderstorms
|
47°F |
0 to 12 mph
S
|
|
Wednesday
May 27
|
Showers And Thunderstorms Likely
|
65°F |
0 to 8 mph
SE
|
|
Wednesday Night
May 27
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
48°F |
1 to 7 mph
SSE
|
|
Thursday
May 28
|
Partly Sunny then Showers And Thunderstorms Likely
|
70°F |
1 to 8 mph
SE
|
|
Thursday Night
May 28
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
49°F |
1 to 8 mph
SSW
|
|
Friday
May 29
|
Mostly Sunny then Showers And Thunderstorms Likely
|
73°F |
1 to 7 mph
SSE
|
|
Friday Night
May 29
|
Chance Showers And Thunderstorms
|
47°F |
1 to 5 mph
SW
|
|
Saturday
May 30
|
Showers And Thunderstorms Likely
|
68°F |
2 to 6 mph
SSE
|
|
Saturday Night
May 30
|
Chance Showers And Thunderstorms then Partly Cloudy
|
46°F |
1 to 5 mph
SSW
|
|
Sunday
May 31
|
Partly Sunny then Showers And Thunderstorms Likely
|
68°F |
1 to 7 mph
SSE
|
|
Sunday Night
May 31
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
47°F |
1 to 6 mph
S
|
|
Monday
Jun 1
|
Partly Sunny then Showers And Thunderstorms Likely
|
65°F |
1 to 6 mph
ESE
|
|
Monday Night
Jun 1
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
47°F |
1 to 5 mph
SSW
|
Major City Forecasts
Live forecast snapshots for major cities across Larimer County.
Coverage
Forecast coverage currently spans 4 of 4 mapped cities in Larimer County.
Largest mapped city population in this region: 168,234.
