Helena, IA Weather Forecast
Local 7-day forecast
Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Helena, IA in one place.
A chance of rain showers. Mostly cloudy, with a high near 73. North northwest wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Helena, IA 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 15, 2026 1:26 PM CDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Helena, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 1:26 PM CDT
- Forecast office
- DMX
- Source
- NOAA / NWS
Daily Outlook
This Week in Helena
Friday looks like the warmest upcoming period in Helena at 81 degrees F.
Monday Night is the coolest period ahead with temperatures near 49 degrees F.
The strongest winds are forecast for Friday Night at about 12 mph SSE.
Precipitation is mentioned in 13 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 1:26 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- DMX
- Radar station
- KDMX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms after 1am. Mostly cloudy. Low around 56, with temperatures rising to around 58 overnight. North northeast wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms. Mostly cloudy, with a high near 71. East northeast wind around 7 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
A chance of rain showers before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then showers and thunderstorms. Mostly cloudy. Low around 61, with temperatures rising to around 64 overnight. East southeast wind 1 to 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 79. North northeast wind around 3 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
A chance of showers and thunderstorms before 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 61. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms likely. Partly sunny, with a high near 81. Chance of precipitation is 70%.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Partly cloudy, with a low around 64. Chance of precipitation is 70%.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 70%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Partly sunny, with a high near 72. Chance of precipitation is 30%.
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 71.
Partly cloudy, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Sep 15
|
Chance Rain Showers
|
73°F |
7 mph
NNW
|
|
Tonight
Sep 15
|
Mostly Cloudy then Slight Chance Showers And Thunderstorms
|
56°F |
5 mph
NNE
|
|
Wednesday
Sep 16
|
Chance Showers And Thunderstorms
|
71°F |
7 mph
ENE
|
|
Wednesday Night
Sep 16
|
Chance Showers And Thunderstorms
|
61°F |
1 to 5 mph
ESE
|
|
Thursday
Sep 17
|
Showers And Thunderstorms
|
79°F |
3 mph
NNE
|
|
Thursday Night
Sep 17
|
Chance Showers And Thunderstorms
|
61°F |
6 mph
ENE
|
|
Friday
Sep 18
|
Showers And Thunderstorms Likely
|
81°F |
7 to 10 mph
SE
|
|
Friday Night
Sep 18
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
64°F |
12 mph
SSE
|
|
Saturday
Sep 19
|
Showers And Thunderstorms Likely
|
80°F |
10 mph
WSW
|
|
Saturday Night
Sep 19
|
Chance Showers And Thunderstorms
|
58°F |
5 to 9 mph
NNW
|
|
Sunday
Sep 20
|
Chance Showers And Thunderstorms
|
72°F |
8 mph
NNE
|
|
Sunday Night
Sep 20
|
Slight Chance Showers And Thunderstorms
|
52°F |
7 mph
NNE
|
|
Monday
Sep 21
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
71°F |
7 mph
NE
|
|
Monday Night
Sep 21
|
Partly Cloudy
|
49°F |
2 to 6 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Helena.