Seward, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seward, a city in Kenai Peninsula Borough County, Alaska.
This Afternoon
53°F
Light Rain Likely
Rain likely. Cloudy. High near 53, with temperatures falling to around 46 in the afternoon. North wind around 15 mph. Chance of precipitation is 60%.
7-day forecast for Seward
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 53°F | Light Rain Likely | 15 mph N | 57% |
| Tonight | 44°F | Light Rain Likely | 5 to 15 mph W | 57% |
| Saturday | 53°F | Rain Showers | 5 to 10 mph W | 100% |
| Saturday Night | 45°F | Light Rain | 10 to 20 mph N | 100% |
| Sunday | 54°F | Light Rain then Rain Showers | 10 to 20 mph N | 93% |
| Sunday Night | 44°F | Rain Showers | 5 to 10 mph N | 97% |
| Monday | 51°F | Rain Showers | 5 to 15 mph W | 97% |
| Monday Night | 42°F | Rain Showers | 10 to 15 mph W | 83% |
| Tuesday | 53°F | Chance Rain Showers | 10 to 15 mph N | 41% |
| Tuesday Night | 41°F | Slight Chance Rain Showers | 10 to 15 mph N | 18% |
| Wednesday | 54°F | Mostly Sunny then Slight Chance Rain Showers | 10 to 15 mph NW | 15% |
| Wednesday Night | 42°F | Chance Rain Showers | 5 to 10 mph W | 37% |
| Thursday | 53°F | Chance Rain Showers | 5 to 15 mph SE | 49% |
| Thursday Night | 44°F | Rain Showers Likely | 10 to 15 mph E | 69% |
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 Sep 19, 2026.