Sycamore, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sycamore, a community in Delaware County, Oklahoma.
Tonight
46°F
Mostly Cloudy
Mostly cloudy, with a low around 46. West wind 0 to 10 mph.
7-day forecast for Sycamore
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 46°F | Mostly Cloudy | 0 to 10 mph W | 3% |
| Wednesday | 64°F | Mostly Sunny | 0 to 10 mph W | 0% |
| Wednesday Night | 41°F | Mostly Clear | 0 mph | 0% |
| Thursday | 64°F | Mostly Sunny then Chance Rain Showers | 0 to 5 mph W | 45% |
| Thursday Night | 40°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 5 mph N | 21% |
| Friday | 59°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Friday Night | 38°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 59°F | Partly Sunny | 0 to 5 mph N | 1% |
| Saturday Night | 37°F | Mostly Clear | 0 mph | 5% |
| Sunday | 63°F | Sunny | 0 to 5 mph NW | 5% |
| Sunday Night | 37°F | Mostly Clear | 0 mph | 1% |
| Monday | 67°F | Sunny | 0 to 5 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 0 to 5 mph S | 0% |
| Tuesday | 70°F | Sunny | 0 to 5 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov) for Sycamore (36.399, -94.715). Updated through the day.
Growing snapshot for Sycamore
Last spring frost
Apr 16
First fall frost
Oct 20
Growing season
187 days
Hardiness zone
7a
More local growing data for Sycamore: nearby ZIP 74346 weather · frost dates · planting calendar · Oklahoma frost dates
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Climate data from the nearest NOAA station, Upper Spavinaw Port, Ok (7.4 mi from Sycamore). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.