Helix, OR Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Helix, a city in Umatilla County, Oregon.
This Afternoon
48°F
Slight Chance Rain Showers
A slight chance of rain showers before 4pm. Mostly cloudy. High near 48, with temperatures falling to around 40 in the afternoon. North wind 2 to 6 mph. Chance of precipitation is 20%.
7-day forecast for Helix
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 48°F | Slight Chance Rain Showers | 2 to 6 mph N | 15% |
| Tonight | 32°F | Patchy Fog then Partly Cloudy | 3 mph S | 2% |
| Wednesday | 52°F | Sunny | 3 mph S | 1% |
| Wednesday Night | 37°F | Mostly Cloudy then Chance Rain Showers | 2 to 7 mph S | 37% |
| Thursday | 54°F | Chance Rain Showers then Mostly Sunny | 3 to 14 mph SW | 26% |
| Thursday Night | 36°F | Partly Cloudy | 6 mph S | 6% |
| Friday | 56°F | Mostly Cloudy | 2 to 6 mph S | 7% |
| Friday Night | 39°F | Mostly Cloudy | 2 to 6 mph S | 4% |
| Saturday | 60°F | Partly Sunny | 5 mph SE | 1% |
| Saturday Night | 41°F | Mostly Cloudy then Slight Chance Rain Showers | 7 mph S | 17% |
| Sunday | 58°F | Slight Chance Rain Showers | 3 to 8 mph SW | 20% |
| Sunday Night | 39°F | Mostly Cloudy | 5 mph S | 10% |
| Monday | 54°F | Mostly Cloudy | 3 mph W | 14% |
| Monday Night | 39°F | Mostly Cloudy then Slight Chance Rain Showers | 3 mph S | 20% |
Forecast source: National Weather Service (api.weather.gov) for Helix (45.851, -118.659). Updated through the day.
Growing snapshot for Helix
Last spring frost
May 12
First fall frost
Sep 27
Growing season
135 days
Hardiness zone
7a
More local growing data for Helix: nearby ZIP 97835 weather · frost dates · planting calendar · Oregon frost dates
Nearby towns & communities
Adams
Athena
Cayuse
Echo
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Green Meadows
Hermiston
Kirkpatrick
McKay
Meacham
Milton-Freewater
Mission
Pendleton
Pilot Rock
Riverside
Stanfield
Tutuilla
Ukiah
Umapine
Umatilla
Weston
Climate data from the nearest NOAA station, Pendleton Branch Exp Stn, Or (14.2 mi from Helix). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.