Weather in Boulder, Colorado for June 2026
Red Flag Warning - See hour by hour.
Until now, June 2026 in Boulder has been nearly identical to the historical average, with a temperature of 27.8 °F (showing only a slight deviation of 0.5 °F).
The forecast for the next days in Boulder predicts temperatures to be around 33 °F, close to the historical average.
In general, the average temperature in Boulder at the beginning of June is 25.4 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 31.1 °F by the end of June.
Boulder experiences moderate rainfall in June, with an average of 8 rainy days and a total precipitation of 51.6 mm.
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Boulder Weather June
Temperatures trend during June in Boulder
June weather in Boulder day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jun. 1 |  Cloudy | 26° /9° | 0.2 mm | 9 | |
| Jun. 2 |  Patchy rain possible | 26° /10° | 2.9 mm | 8 | |
| Jun. 3 | Cloudy | 21° /9° | 19 mm | 7 | |
| Jun. 4 |  Overcast | 25° /10° | 1.8 mm | 8 | |
| Jun. 5 |  Sunny | 25° /11° | 4.7 mm | 8 | |
| Jun. 6 | Sunny | 26° /10° | 1.4 mm | 8 | |
| Jun. 7 | Overcast | 29° /12° | 0.6 mm | 9 | |
| Jun. 8 | Patchy rain possible | 23° /12° | 0.4 mm | 8 | |
| Jun. 9 |  Moderate or heavy rain shower | 26° /11° | 0.7 mm | 8 | |
| Jun. 10 | Sunny | 27° /12° | 0 mm | 8 | |
| Jun. 11 |  Partly cloudy | 27° /12° | 0 mm | 9 | |
| Jun. 12 | Cloudy | 31° /13° | 0 mm | 9 | |
| Jun. 13 | Cloudy | 29° /13° | 0.1 mm | 9 | |
| Jun. 14 | Moderate or heavy rain shower | 26° /14° | 1.7 mm | 6 | |
| Jun. 15 | Moderate rain at times | 30° /12° | 0.2 mm | 9 | |
| Jun. 16 | Partly cloudy | 32° /12° | 0 mm | 9 | |
| Jun. 17 | Sunny | 30° /15° | 0 mm | 9 | |
| Jun. 18 | Sunny | 26° /11° | 0 mm | 8 | |
| Jun. 19 | Moderate or heavy rain shower | 28° /12° | 1.2 mm | 9 | |
| Jun. 20 | Patchy rain possible | 31° /13° | 0.1 mm | 9 | |
| Jun. 21 | Moderate or heavy rain shower | 29° /15° | 0.6 mm | 9 | |
| Jun. 22 | Partly cloudy | 29° /13° | 0 mm | 10 | |
| Jun. 23 | Partly cloudy | 26° /13° | 0.2 mm | 9 | |
| Jun. 24 | Cloudy | 27° /14° | 0.2 mm | 8 | |
| Jun. 25 | Partly cloudy | 27° /15° | 2.6 mm | 6 | |
| Jun. 26 | Sunny | 31° /11° | 0.1 mm | 9.2 | |
| Jun. 27 | Sunny | 34° /14° | 0 mm | 10.8 | |
| Jun. 28 | Sunny | 34° /13° | 0 mm | 11.2 | |
| Jun. 29 | Sunny | 33° /13° | 0 mm | 10.4 | |
| Jun. 30 | Sunny | 32° /11° | 0 mm | 0 | |
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Boulder in June - FAQ
What are the expected maximum and minimum temperatures in Boulder during June?
How much rainfall should be expected in Boulder during June?
What are the typical wind conditions in Boulder during June?
June rainfall patterns in Boulder
UV exposure in Boulder during June
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