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.
- Local tuning: The forecast is calibrated using current data from local OlallaWx weather stations including the Davis Vantage Pro 2 and Ambient WS-5000.
- Historical learning: OlallaWx refines NWS forecasts by learning from past local OlallaWx weather patterns.
- Hands-on control: Forecasts are generated and reviewed directly at OlallaWx.org.
- Frequent updates: Updated approximately every two hours.
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
Clear
Lo 28 °F |
This
afternoon
Clear
High: 45° |
NWS: Clear, with a low around 28. Wind chill values as low as 24. North northeast wind around 7 mph.
OlallaWx: Clear. High 45°. Wind north around 9 mph, gusting to 19 mph. |
Saturday
Sunny
Hi 44 °F |
Tonight
Clear
Low: 17° |
NWS: Sunny. High near 44, with temperatures falling to around 40 in the afternoon. Wind chill values as low as 23. North northeast wind around 5 mph.
OlallaWx: Clear. Cold. Low 17°. Wind north around 3 mph. |
Saturday
Night
Partly Cloudy
Lo 27 °F |
Saturday
Mostly Sunny
High: 45° |
NWS: Partly cloudy, with a low around 27. Northeast wind around 5 mph.
OlallaWx: Sunny in the morning, becoming partly to mostly sunny in the afternoon. High 45°. Wind northeast around 2 mph. |
Sunday
Partly Sunny
Hi 43 °F |
Saturday
night
Partly Cloudy
Low: 22° |
NWS: Partly sunny, with a high near 43. East northeast wind around 2 mph.
OlallaWx: Partly cloudy. Cold. Low 22°. Wind northeast near calm in the evening, becoming north after midnight. |
Sunday
Night
Mostly Cloudy
Lo 32 °F |
Sunday
Mostly Cloudy
High: 45° |
NWS: Mostly cloudy, with a low around 32. East wind around 2 mph.
OlallaWx: Partly to mostly sunny in the morning, becoming partly to mostly cloudy in the afternoon. High 45°. Wind northeast near calm. |
Monday
Mostly Cloudy
Hi 46 °F |
Sunday
night
Mostly Cloudy
Low: 30° |
NWS: Mostly cloudy, with a high near 46. New rainfall amounts less than a tenth of an inch possible.
OlallaWx: Mostly cloudy in the evening, becoming mostly cloudy to cloudy after midnight. Low 30°. Wind northeast near calm in the evening, becoming southwest after midnight. |
Monday
Night
Mostly Cloudy
Lo 36 °F |
Monday
Mostly Cloudy
High: 50° |
NWS: Mostly cloudy, with a low around 36.
OlallaWx: Mostly cloudy to cloudy in the morning, becoming partly to mostly cloudy in the afternoon. High 50°. Wind southwest around 2 mph in the morning, becoming south-southeast in the afternoon. |