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Climate chart Helena

Jan.

max 28°F min 12°F

10

Feb.

max 32°F min 14°F

6

Mar.

max 45°F min 28°F

13

Apr.

max 45°F min 25°F

25

May.

max 57°F min 36°F

29

Jun.

max 70°F min 43°F

18

Jul.

max 82°F min 52°F

16

Aug.

max 88°F min 54°F

11

Sep.

max 75°F min 46°F

10

Oct.

max 59°F min 36°F

4

Nov.

max 32°F min 12°F

10

Dec.

max 36°F min 21°F

10

Weekly overview Helena

Weather Helena 14 days

Wednesday 17-12-2025 Overcast 50°F / 63°F

Thursday 18-12-2025 Fog 59°F / 75°F

Friday 19-12-2025 Sunny/Clear 46°F / 66°F

Saturday 20-12-2025 Sunny/Clear 50°F / 70°F

Sunday 21-12-2025 Patchy rain possible 64°F / 77°F

Monday 22-12-2025 Patchy rain possible 64°F / 73°F

Tuesday 23-12-2025 Partly cloudy 64°F / 73°F

Wednesday 24-12-2025 Sunny/Clear 63°F / 75°F

Thursday 25-12-2025 Sunny/Clear 63°F / 75°F

Friday 26-12-2025 Sunny/Clear 63°F / 75°F

Saturday 27-12-2025 Mist 63°F / 75°F

Sunday 28-12-2025 Cloudy 61°F / 63°F

Monday 29-12-2025 Sunny/Clear 54°F / 70°F

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