Seward, AK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Seward, a city in Kenai Peninsula Borough County, Alaska.
Overnight
54°F
Rain
Rain. Cloudy, with a low around 54. South wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
7-day forecast for Seward
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Rain | 15 mph S | 100% |
| Tuesday | 55°F | Rain | 15 mph S | 100% |
| Tuesday Night | 54°F | Light Rain | 5 to 15 mph W | 93% |
| Wednesday | 57°F | Light Rain | 5 to 10 mph S | 91% |
| Wednesday Night | 51°F | Light Rain Likely | 5 to 10 mph N | 68% |
| Thursday | 60°F | Light Rain Likely | 5 to 10 mph S | 65% |
| Thursday Night | 51°F | Chance Light Rain | 0 to 10 mph S | 52% |
| Friday | 66°F | Cloudy | 5 to 10 mph S | 10% |
| Friday Night | 52°F | Mostly Cloudy | 0 to 10 mph S | 8% |
| Saturday | 66°F | Mostly Cloudy | 5 to 10 mph N | 5% |
| Saturday Night | 52°F | Mostly Cloudy | 0 to 10 mph SW | 6% |
| Sunday | 67°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph N | 17% |
| Sunday Night | 52°F | Slight Chance Rain Showers | 0 to 10 mph NW | 17% |
| Monday | 66°F | Chance Rain Showers | 5 to 10 mph W | 29% |
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 Aug 4, 2026.