From bid to final account
Construction-Weather.com connects weather forecasts with planning trade activities, reviewing weather risks across sites, preparing early warnings and organising supporting delay evidence — for daily site work alongside tender planning and commercial review.
Free open beta: every feature is free today, with no fixed beta end date. Pro is currently planned at an indicative $25/month or $250/year, subject to confirmation; the 14-day trade forecast is planned to remain free. See pricing details and qualifiers →
Four stages. One platform.
Construction weather affects every role from the estimator setting the tender allowance to the commercial team compiling a time-extension claim (also known as an extension-of-time or EOT claim) months later. Every stage is connected in a single location-based workflow — so the evidence you build on day one supports the claim at the end.
Use ten years of location-specific historical data to calculate realistic unsuitable-day allowances by trade and project month. Avoid underpricing weather risk — and the P&G overruns that follow when the allowance runs out mid-programme.
Tender team guide →
Check whether tomorrow's conditions are suitable for the planned operation before the crew mobilises. Green, Amber and Red advisory grading across 29 construction trades — concrete, craneage, roofing, earthworks and more — with a 14-day outlook.
Site manager guide →
Issue contractual early-warning notices before adverse conditions arrive. Maintain the contemporaneous weather records that underpin any future delay claim. A 14-day forecast benchmarked against historical norms keeps you ahead of the programme.
Project manager guide →
Benchmark the affected project month against a five- or ten-year historical average, identify qualifying weather events and organise supporting evidence around the contract clause — NEC, JCT or FIDIC — for professional commercial and programme review.
QS guide →The platform behind the lifecycle
The multi-site dashboard turns the lifecycle promise into an operational view: compare site conditions, spot restricted operations, and move from an emerging forecast risk to the right planning or contract action.
See how the platform works →
Construction-Weather.com connects weather forecasts with what happens next: planning trade activities, reviewing weather risks across sites, preparing early warnings and organising supporting delay evidence. It supports daily site work alongside tender planning and commercial review; outputs do not determine safety, legal entitlement or recovery.
US contractors
Working under AIA, ConsensusDocs or FAR contracts?
See how Construction Weather supports US weather delay documentation and bid planning.
Built for every role on site
Construction weather affects every person on the project — from the site manager planning tomorrow's crew to the QS compiling delay evidence months later. Construction Weather is designed to be useful at every stage and for every role.
Check whether today's or tomorrow's forecast conditions are suitable for the planned operation before mobilising the crew. Green, Amber and Red grading across 29 construction trades — concrete, craneage, roofing, earthworks and more.
Daily trade planning →Protect the programme with a 14-day trade forecast, issue contractual early-warning notices before conditions arrive, and maintain the contemporaneous records that support any future delay claim.
Early warnings →Price weather risk accurately at tender using 10 years of location-specific historical data. Organise benchmarked, supporting time-extension evidence when adverse weather affects the works for qualified commercial and programme review.
Time-extension evidence →Built for contractors
Rain, wind, heat and cold affect construction activities differently. The platform connects forecast conditions with selected trade operations, presents Green, Amber and Red advisory levels and provides mitigation guidance.
Integrated tools
Each tool addresses a different point in the project lifecycle — and all share the same location, project and historical dataset so nothing needs to be entered twice.
Construction-oriented risk grading across 29 trade operations.
Trade advisories →Review daily and hourly weather records for selected locations and dates.
Historical data →Benchmark weather and organise qualifying events for review — structured around contract wording to support time-extension and commercial review.
Time-extension evidence →Compare historic unsuitable-day allowances across project months. Price weather risk accurately so it is in the contract, not absorbed as a loss.
Tender planning →Generate an editable Word draft using project and forecast information — ready to issue before adverse conditions arrive.
Early warnings →Platform outputs support project decision-making and document preparation. They do not determine contractual entitlement, replace programme analysis or constitute legal advice.
Rain radar example
This captured Melbourne sequence demonstrates the animated radar available inside the platform for any project location. Colour intensity shows rainfall rate from light drizzle through to heavy rain.
Captured example
Rain radar: RainViewer · Map: OpenStreetMap · Captured Melbourne example — the sequence remains unchanged for every visitor.
Resources
Practical guides covering the full project lifecycle — from pricing weather risk at tender through daily site planning to building a successful time-extension claim.
How to use historical data to calculate realistic unsuitable-day allowances by trade and month, so weather risk is accurately priced into the tender.
Read the guide →Using construction-specific weather information to plan daily operations — which trades are affected by rain, wind, heat and cold, and how good decisions protect the programme.
Read the guide →The four elements every successful weather time-extension claim must address, the contractual notice requirements that protect entitlement, and how to build evidence from day one.
Read the guide →See where Construction Weather fits across 29-trade operational planning, mobile access, rain radar, multi-site monitoring, tender allowances, early warnings and time-extension evidence.
Compare construction weather platforms →Explore construction-focused forecasts, historical records and reporting tools for your next project location.
