Weather Forecast Comparison

Explanation: The NWS Forecast forecast is provided by the National Weather Service. The OlallaWx.org forecast is generated locally using WXSIM forecasting software, customized for Olalla, WA and operated by OlallaWx.org.

About the Forecasts

OlallaWx.org uses WXSIM forecasting software — a sophisticated, locally-run weather prediction system designed to provide highly customized forecasts specifically for the Olalla, WA area.

How it compares to NWS:

Feature NWS (National Weather Service) OlallaWx.org via WXSIM
Forecast Scope Broad zones (counties, metro areas) Hyperlocal (Olalla-specific)
Update Frequency 2–4 times daily Approximately every 2 hours
Local Station Integration Not always included Uses OlallaWx.org station data
Forecast Engine Government meteorological models Hybrid expert + AI model (WXSIM)

NWS Forecast OlallaWx.org Forecast Forecast
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 60 °F
Tonight

Partly Cloudy
Partly Cloudy
Low: 53°
NWS: Mostly clear, with a low around 60. North northeast wind 3 to 7 mph.

OlallaWx: Clear in the evening, becoming partly cloudy after midnight. Low 53°. Wind northeast around 2 mph.
Tuesday

Tuesday: Sunny
Sunny

Hi 83 °F
Tuesday

Sunny
Sunny
High: 88°
NWS: Sunny. High near 83, with temperatures falling to around 81 in the afternoon. North northwest wind 3 to 10 mph.

OlallaWx: Sunny. Unusually hot. High 88°. UV index up to 8. Wind northwest near calm in the morning, becoming north around 5 mph in the afternoon.
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear

Lo 57 °F
Tuesday
night
Partly Cloudy
Partly Cloudy
Low: 51°
NWS: Mostly clear, with a low around 57. North northeast wind 5 to 9 mph.

OlallaWx: Clear in the evening, becoming fair to partly cloudy after midnight. Cool. Low 51°. Wind north around 3 mph in the evening, becoming near calm after midnight.
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny

Hi 75 °F
Wednesday

Partly Cloudy
Partly Cloudy
High: 81°
NWS: Mostly sunny, with a high near 75. South southwest wind 5 to 8 mph.

OlallaWx: Partly cloudy in the morning, becoming partly to mostly sunny in the afternoon. Warm. High 81°. UV index up to 7. Wind south-southwest around 3 mph in the morning, becoming west-southwest in the afternoon.
Wednesday
Night
Wednesday Night: Mostly Cloudy
Mostly Cloudy

Lo 55 °F
Wednesday
night
Partly Cloudy
Partly Cloudy
Low: 55°
NWS: Mostly cloudy, with a low around 55. West southwest wind 5 to 8 mph.

OlallaWx: Fair to partly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 55°. Wind southeast around 2 mph in the evening, becoming south-southwest after midnight.
Thursday

Thursday: Mostly Sunny
Mostly Sunny

Hi 73 °F
Thursday

Partly Cloudy
Partly Cloudy
High: 76°
NWS: Mostly sunny, with a high near 73.

OlallaWx: Partly cloudy in the morning, becoming mostly sunny in the afternoon. A chance of rain. High 76°. UV index up to 7. Wind west-northwest around 3 mph in the morning, becoming north in the afternoon. Chance of precipitation 30 percent. Precipitation mostly less than a tenth of an inch.
Thursday
Night
Thursday Night: Partly Cloudy
Partly Cloudy

Lo 54 °F
Thursday
night
Mostly Cloudy
Mostly Cloudy
Low: 54°
NWS: Partly cloudy, with a low around 54.

OlallaWx: Fair in the evening, becoming mostly cloudy after midnight. Low 54°. Wind north around 4 mph in the evening, becoming northeast near calm after midnight.