Seward, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seward, a city in Kenai Peninsula Borough County, Alaska.
Tonight
41°F
Heavy Rain
Rain. Cloudy, with a low around 41. West wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
7-day forecast for Seward
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 41°F | Heavy Rain | 10 mph W | 100% |
| Wednesday | 46°F | Widespread Rain Showers | 5 to 15 mph S | 100% |
| Wednesday Night | 38°F | Widespread Rain Showers | 5 to 10 mph N | 85% |
| Thursday | 46°F | Scattered Rain Showers then Mostly Cloudy | 10 to 15 mph N | 30% |
| Thursday Night | 37°F | Mostly Cloudy | 15 to 20 mph N | 9% |
| Friday | 41°F | Partly Sunny | 15 mph N | 9% |
| Friday Night | 36°F | Mostly Cloudy then Rain And Snow Likely | 10 to 15 mph N | 56% |
| Saturday | 41°F | Rain And Snow | 10 to 15 mph N | 76% |
| Saturday Night | 31°F | Chance Rain And Snow | 10 to 15 mph N | 40% |
| Sunday | 38°F | Slight Chance Light Snow | 10 mph N | 38% |
| Sunday Night | 31°F | Rain And Snow Likely | 10 to 15 mph N | 66% |
| Monday | 40°F | Rain And Snow Likely | 15 to 20 mph N | 69% |
| Monday Night | 34°F | Rain And Snow Likely | 20 mph N | 57% |
| Tuesday | 42°F | Rain And Snow Likely | 15 to 20 mph N | 57% |
Forecast source: National Weather Service (api.weather.gov) for Seward (60.125, -149.392). Updated through the day.
Growing snapshot for Seward
Last spring frost
May 2
First fall frost
Oct 7
Growing season
158 days
More local growing data for Seward: nearby ZIP 99664 weather · frost dates · planting calendar · Alaska frost dates
Nearby towns & communities
Anchor Point
Bear Creek
Beluga
Clam Gulch
Cohoe
Cooper Landing
Crown Point
Diamond Ridge
Fox River
Fritz Creek
Funny River
Halibut Cove
Happy Valley
Homer
Hope
Kachemak
Kalifornsky
Kasilof
Kenai
Lowell Point
Moose Pass
Nanwalek
Nikiski
Nikolaevsk
Ninilchik
Point Possession
Port Graham
Primrose
Ridgeway
Salamatof
Climate data from the nearest NOAA station, Seward Ap, Ak (2.9 mi from Seward). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.