Weather WorldHelena, CA Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Helena Weather Forecast
| TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  |  | |  | | |  |  | | |
| Mostly Clear | Chance of T-Storm | Chance of T-Storm | Rain Showers | Mostly Clear | Sunny | Clear | Sunny | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear |
| Lo: 49°FLo: 9°C | Hi: 80°FHi: 27°C | Lo: 51°FLo: 11°C | Hi: 81°FHi: 27°C | Lo: 52°FLo: 11°C | Hi: 89°FHi: 32°C | Lo: 56°FLo: 13°C | Hi: 93°FHi: 34°C | Hi: 94°FHi: 34°C Lo: 57°FLo: 14°C | Hi: 94°FHi: 34°C Lo: 57°FLo: 14°C | Hi: 94°FHi: 34°C Lo: 56°FLo: 13°C | Hi: 94°FHi: 34°C Lo: 56°FLo: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 136 PM PDT Tue Sep 15 2026 
Helena Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Helena Weather Map
Helena Quick Facts
Helena Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 243 PM PDT Tue Sep 15 2026
Key Messages
- A weak frontal system arriving Wednesday will likely lead to cooler temperatures and a few showers or thunderstorms.
- There is a slight chance for thunderstorms in mainly in Trinity, Humboldt and Del Norte counties on Wednesday.
- Warmer temperatures and dry conditions return end of the week.
Discussion
...An upper level low dropping south over the area is expected to impact the area Wednesday and Thursday. This is expected to bring some showers and possible thunderstorms to the area Wedn...