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
This
Afternoon
This Afternoon: Sunny
Sunny

Hi 84 °F
Tonight

Fog late
Fog late
Low: 54°
NWS: Sunny, with a high near 84. North wind around 12 mph.

OlallaWx: Clear in the evening, becoming partly cloudy after midnight. Patchy light fog after midnight. Low 54°. Wind northeast around 3 mph.
Tonight

Tonight: Mostly Clear
Mostly Clear

Lo 60 °F
Tuesday

Fog a.m.
Fog a.m.
High: 88°
NWS: Mostly clear, with a low around 60. North wind 3 to 12 mph.

OlallaWx: Sunny. Patchy light fog in the morning. Unusually hot. High 88°. UV index up to 8. Wind west-northwest near calm in the morning, becoming north around 5 mph in the afternoon.
Tuesday

Tuesday: Sunny
Sunny

Hi 83 °F
Tuesday
night
Partly Cloudy
Partly Cloudy
Low: 53°
NWS: Sunny. High near 83, with temperatures falling to around 81 in the afternoon. North northwest wind 3 to 10 mph.

OlallaWx: Clear in the evening, becoming fair to partly cloudy after midnight. Low 53°. Wind north around 3 mph in the evening, becoming near calm after midnight.
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear

Lo 57 °F
Wednesday

Partly Cloudy
Partly Cloudy
High: 81°
NWS: Mostly clear, with a low around 57. North northeast wind 5 to 9 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-southeast near calm in the morning, becoming west-southwest around 4 mph in the afternoon.
Wednesday

Wednesday: Mostly Sunny
Mostly Sunny

Hi 75 °F
Wednesday
night
Mostly Cloudy
Mostly Cloudy
Low: 54°
NWS: Mostly sunny, with a high near 75. South southwest wind 5 to 8 mph.

OlallaWx: Fair in the evening, becoming mostly cloudy after midnight. Low 54°. Wind east-southeast around 2 mph in the evening, becoming south-southwest after midnight.
Wednesday
Night
Wednesday Night: Mostly Cloudy
Mostly Cloudy

Lo 55 °F
Thursday

Mostly Sunny
Mostly Sunny
High: 77°
NWS: Mostly cloudy, with a low around 55.

OlallaWx: Partly to mostly sunny in the morning, becoming sunny in the afternoon. High 77°. UV index up to 7. Wind south-southwest near calm in the morning, becoming north-northwest around 5 mph, gusting to 16 mph, in the afternoon.
Thursday

Thursday: Mostly Sunny
Mostly Sunny

Hi 73 °F
Thursday
night
Mostly Cloudy
Mostly Cloudy
Low: 54°
NWS: Mostly sunny, with a high near 73.

OlallaWx: Mostly clear in the evening, becoming mostly cloudy after midnight. Low 54°. Wind north-northwest around 4 mph, gusting to 15 mph, in the evening, becoming south-southeast near calm after midnight.