Helena, ID Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Helena, ID in one place.
Mostly sunny, with a high near 62. South southwest wind 5 to 9 mph.
Local Weather Overview
This forecast page for Helena, ID is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 14, 2026 9:03 PM MDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Helena, ID.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 14, 2026 9:03 PM MDT
- Forecast office
- BOI
- Source
- NOAA / NWS
Daily Outlook
This Week in Helena
Sunday looks like the warmest upcoming period in Helena at 69 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 46 degrees F.
The strongest winds are forecast for Tuesday Night at about 3 to 17 mph N.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 14, 2026 9:03 PM MDT
- Coverage
- 7 days
- Time zone
- America/Boise
- Forecast office
- BOI
- Radar station
- KPDT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly cloudy, with a low around 46. North wind 3 to 17 mph, with gusts as high as 28 mph.
Sunny, with a high near 67. North wind 10 to 16 mph, with gusts as high as 25 mph.
Mostly clear, with a low around 49. North wind 12 to 15 mph, with gusts as high as 24 mph.
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 68. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 50. Chance of precipitation is 50%.
A chance of rain showers. Partly sunny, with a high near 64. Chance of precipitation is 40%.
Mostly clear, with a low around 48.
Sunny, with a high near 66.
Mostly clear, with a low around 49.
Sunny, with a high near 69.
Mostly clear, with a low around 51.
Sunny, with a high near 68.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Sep 15
|
Mostly Sunny
|
62°F |
5 to 9 mph
SSW
|
|
Tuesday Night
Sep 15
|
Mostly Cloudy
|
46°F |
3 to 17 mph
N
|
|
Wednesday
Sep 16
|
Sunny
|
67°F |
10 to 16 mph
N
|
|
Wednesday Night
Sep 16
|
Mostly Clear
|
49°F |
12 to 15 mph
N
|
|
Thursday
Sep 17
|
Partly Sunny then Chance Showers And Thunderstorms
|
68°F |
6 to 9 mph
NNW
|
|
Thursday Night
Sep 17
|
Chance Showers And Thunderstorms
|
50°F |
5 mph
NNE
|
|
Friday
Sep 18
|
Chance Rain Showers
|
64°F |
5 mph
NNW
|
|
Friday Night
Sep 18
|
Mostly Clear
|
48°F |
5 mph
N
|
|
Saturday
Sep 19
|
Sunny
|
66°F |
2 to 7 mph
W
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
49°F |
3 mph
N
|
|
Sunday
Sep 20
|
Sunny
|
69°F |
6 mph
E
|
|
Sunday Night
Sep 20
|
Mostly Clear
|
51°F |
5 mph
NNE
|
|
Monday
Sep 21
|
Sunny
|
68°F |
5 to 8 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Helena.