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Climate chart Boulder

Jan.

max 27°F min 5°F

16

Feb.

max 43°F min 23°F

5

Mar.

max 34°F min 10°F

20

Apr.

max 59°F min 36°F

14

May.

max 54°F min 25°F

21

Jun.

max 81°F min 55°F

22

Jul.

max 86°F min 63°F

26

Aug.

max 84°F min 63°F

17

Sep.

max 81°F min 55°F

10

Oct.

max 64°F min 41°F

6

Nov.

max 45°F min 23°F

6

Dec.

max 39°F min 25°F

12

Weekly overview Boulder

Weather Boulder 14 days

Wednesday 17-12-2025 Sunny/Clear 41°F / 61°F

Thursday 18-12-2025 Sunny/Clear 28°F / 43°F

Friday 19-12-2025 Patchy rain possible 39°F / 57°F

Saturday 20-12-2025 Patchy rain possible 34°F / 48°F

Sunday 21-12-2025 Sunny/Clear 30°F / 41°F

Monday 22-12-2025 Sunny/Clear 34°F / 61°F

Tuesday 23-12-2025 Sunny/Clear 41°F / 59°F

Wednesday 24-12-2025 Sunny/Clear 37°F / 55°F

Thursday 25-12-2025 Sunny/Clear 41°F / 57°F

Friday 26-12-2025 Patchy rain possible 41°F / 54°F

Saturday 27-12-2025 Sunny/Clear 27°F / 46°F

Sunday 28-12-2025 Sunny/Clear 34°F / 50°F

Monday 29-12-2025 Sunny/Clear 41°F / 61°F

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