Newcastle, NE Weather & Growing Conditions
Tonight
64°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2am, then patchy fog and a chance of showers and thunderstorms between 2am and 4am, then a chance of showers and thunderstorms between 4am and 5am, then patchy fog and a slight chance of showers and thunderstorms. Mostly cloudy. Low around 64, with temperatures rising to around 68 overnight. North northwest wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Chance Showers And Thunderstorms | 5 to 10 mph NNW | 36% |
| Saturday | 70°F | Patchy Fog then Cloudy | 10 mph NNW | 22% |
| Saturday Night | 58°F | Cloudy | 10 mph NNE | 12% |
| Sunday | 64°F | Rain Showers Likely | 10 to 15 mph NE | 60% |
| Sunday Night | 54°F | Rain Showers Likely | 10 mph ENE | 69% |
| Monday | 59°F | Showers And Thunderstorms Likely | 10 mph ENE | 69% |
| Monday Night | 49°F | Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 10 mph ENE | 39% |
| Tuesday | 63°F | Mostly Cloudy | 5 to 10 mph E | 5% |
| Tuesday Night | 49°F | Partly Cloudy | 5 to 10 mph SE | 0% |
| Wednesday | 67°F | Partly Sunny | 5 to 10 mph SE | 13% |
| Wednesday Night | 53°F | Mostly Cloudy then Chance Rain Showers | 5 to 10 mph SE | 42% |
| Thursday | 67°F | Chance Rain Showers | 10 mph SSE | 42% |
| Thursday Night | 55°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph SE | 19% |
| Friday | 69°F | Slight Chance Rain Showers | 5 to 10 mph SE | 19% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Newcastle, NE
Last spring frost
May 3
First fall frost
Oct 3
Growing season
153 days
Hardiness zone
5a
Explore more for Newcastle, NE: full frost dates · planting calendar · Nebraska frost dates
Climate data from the nearest NOAA station, Vermillion 2 Se, Sd (7.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.