Armstrong, WA Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Armstrong, WA in one place.
Mostly cloudy. High near 66, with temperatures falling to around 64 in the afternoon. Southwest wind around 5 mph.
Local Weather Overview
This forecast page for Armstrong, WA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 14, 2026 9:36 PM PDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Armstrong, WA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 14, 2026 9:36 PM PDT
- Forecast office
- OTX
- Source
- NOAA / NWS
Daily Outlook
This Week in Armstrong
Sunday looks like the warmest upcoming period in Armstrong at 77 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 44 degrees F.
The strongest winds are forecast for Thursday at about 0 to 7 mph W.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 14, 2026 9:36 PM PDT
- Coverage
- 7 days
- Time zone
- America/Los_Angeles
- Forecast office
- OTX
- Radar station
- KOTX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Areas of fog after midnight. Partly cloudy, with a low around 44. North wind 0 to 3 mph.
Areas of fog before 8am. Sunny, with a high near 73. North wind 0 to 5 mph.
Patchy fog after 2am. Clear, with a low around 46. North wind 0 to 5 mph.
Patchy fog before 7am, then a chance of rain showers. Mostly sunny, with a high near 74. Chance of precipitation is 30%.
A chance of rain showers before 5am. Mostly cloudy, with a low around 46. Chance of precipitation is 30%.
Mostly sunny, with a high near 73.
Mostly clear, with a low around 46.
Sunny, with a high near 75.
Mostly clear, with a low around 46.
Sunny, with a high near 77.
Mostly clear, with a low around 46.
Sunny, with a high near 75.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Sep 15
|
Mostly Cloudy
|
66°F |
5 mph
SW
|
|
Tuesday Night
Sep 15
|
Partly Cloudy then Areas Of Fog
|
44°F |
0 to 3 mph
N
|
|
Wednesday
Sep 16
|
Areas Of Fog then Sunny
|
73°F |
0 to 5 mph
N
|
|
Wednesday Night
Sep 16
|
Clear then Patchy Fog
|
46°F |
0 to 5 mph
N
|
|
Thursday
Sep 17
|
Patchy Fog then Chance Rain Showers
|
74°F |
0 to 7 mph
W
|
|
Thursday Night
Sep 17
|
Chance Rain Showers
|
46°F |
0 to 7 mph
W
|
|
Friday
Sep 18
|
Mostly Sunny
|
73°F |
1 to 5 mph
S
|
|
Friday Night
Sep 18
|
Mostly Clear
|
46°F |
3 mph
S
|
|
Saturday
Sep 19
|
Sunny
|
75°F |
2 to 6 mph
S
|
|
Saturday Night
Sep 19
|
Mostly Clear
|
46°F |
3 mph
SE
|
|
Sunday
Sep 20
|
Sunny
|
77°F |
2 to 6 mph
S
|
|
Sunday Night
Sep 20
|
Mostly Clear
|
46°F |
1 to 5 mph
SE
|
|
Monday
Sep 21
|
Sunny
|
75°F |
7 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Armstrong.