Overview
Use it as a weather data API for live conditions or as a weather forecast API for the week ahead. Query either a city name or a zip code to fetch real-time atmospheric readings. Responses supply temperature, wind speed, and compass heading in both metric and imperial measurements. Paid plans add a 7-day daily forecast with highs, lows, rain chance and precipitation totals, plus precipitation amounts, barometric pressure, apparent feels-like temperatures, visibility, and wind gust speeds.
Live Test Live Weather & Forecast Source →
Formula
One function covers the whole catalog: the first argument names the source, the rest are its inputs, and the "field" pair says which single value lands in the cell. Formulas covers the grammar that applies to all of them.
=VERVE("weatherforecast", A2, "field", "tempC")=VERVE.CALL("weatherforecast", A2, "field", "tempC")A2 holds the city you are looking up. Drag the formula down and each row resolves on its own.
With literal values
Nothing has to come from a cell — typed values work the same way.
=VERVE("weatherforecast", "San Francisco", "field", "tempC")=VERVE.CALL("weatherforecast", "San Francisco", "field", "tempC")Inputs
Required inputs are positional, in the order below. Everything else is passed as a "name", value pair after them — the same shape as SUMIFS. Premium inputs are accepted on every plan but only take effect on plans that include them.
| Input | Type | Where it goes | Description |
|---|---|---|---|
cityRequired | string | argument 2 (A2) | The city for which you want to get the current weather (e.g., San Francisco) |
forecastOptional | boolean | "forecast", value | Included by default. Set to false to omit the 7-day forecast and return current conditions only. |
Passing an option
=VERVE("weatherforecast", A2, "forecast", "true")=VERVE.CALL("weatherforecast", A2, "forecast", "true")What lands in your sheet
The "field" pair is what makes the formula resolve to one cell. Its value is a dot-path from the table below, so swapping it is how you pull a different value — one formula per column.
Seeing everything at once
Drop the "field" pair and the formula returns the whole response instead: two columns, field name on the left and value on the right, spilling from the cell you typed in.
=VERVE("weatherforecast", A2)=VERVE.CALL("weatherforecast", A2)The second row's table would land on top of the first's, and every cell after the first reads #REF! (#SPILL! in Excel). Keep one per sheet, or name a field, and leave the cells below and to the right empty.
Response fields
Paths are relative to data. Each one is exactly what the "field" pair accepts, so swapping it is how you pull a different value into a cell. On a plan without a Premium field the cell reads #PREMIUM(field) rather than a value, so a locked field never looks like a real answer.
| Use as "field" | Type | Example cell value | Description |
|---|---|---|---|
tempC | number | 13.3 | Current temperature in degrees Celsius |
tempF | number | 55.9 | Current temperature in degrees Fahrenheit |
windMph | number | 4.7 | Wind speed in miles per hour |
windKph | number | 7.6 | Wind speed in kilometers per hour |
windDegree | number | 273 | Wind direction in degrees (0-360) |
windDir | string | W | Wind direction as compass point (N, S, E, W, etc.) |
pressureMbPremium | number | 1022 | Atmospheric pressure in millibars |
pressureInPremium | number | 30.17 | Atmospheric pressure in inches of mercury |
precipMmPremium | number | 0 | Precipitation amount in millimeters |
precipInPremium | number | 0 | Precipitation amount in inches |
feelslikeCPremium | number | 13 | Apparent temperature in degrees Celsius |
feelslikeFPremium | number | 55.3 | Apparent temperature in degrees Fahrenheit |
visKmPremium | number | 16 | Visibility distance in kilometers |
visMilesPremium | number | 9 | Visibility distance in miles |
gustMphPremium | number | 7.2 | Wind gust speed in miles per hour |
gustKphPremium | number | 11.6 | Wind gust speed in kilometers per hour |
forecastPremium | array[7] | A 7-day daily forecast for the location, one entry per day, starting today | |
forecast.0.datePremium | string | 2026-09-21 | Forecast date in YYYY-MM-DD |
forecast.0.conditionPremium | string | Sunny | Summary weather condition for the day (e.g., Sunny, Overcast) |
forecast.0.maxtempCPremium | number | 22.5 | Highest temperature for the day in degrees Celsius |
forecast.0.maxtempFPremium | number | 72.5 | Highest temperature for the day in degrees Fahrenheit |
forecast.0.mintempCPremium | number | 13.3 | Lowest temperature for the day in degrees Celsius |
forecast.0.mintempFPremium | number | 56 | Lowest temperature for the day in degrees Fahrenheit |
forecast.0.avgtempCPremium | number | 17.7 | Average temperature for the day in degrees Celsius |
forecast.0.avgtempFPremium | number | 63.9 | Average temperature for the day in degrees Fahrenheit |
forecast.0.maxwindMphPremium | number | 4.7 | Maximum sustained wind speed for the day in miles per hour |
forecast.0.maxwindKphPremium | number | 7.6 | Maximum sustained wind speed for the day in kilometers per hour |
forecast.0.avghumidityPremium | number | 48 | Average relative humidity for the day as a percentage |
forecast.0.uvPremium | number | 4 | Maximum UV index for the day |
forecast.0.willItRainPremium | number | 0 | 1 if rain is expected during the day, 0 if not |
forecast.0.chanceOfRainPremium | number | 4 | Probability of rain during the day as a percentage |
forecast.0.willItSnowPremium | number | 0 | 1 if snow is expected during the day, 0 if not |
forecast.0.chanceOfSnowPremium | number | 0 | Probability of snow during the day as a percentage |
forecast.0.totalprecipMmPremium | number | 0 | Total precipitation for the day in millimeters |
forecast.0.totalprecipInPremium | number | 0 | Total precipitation for the day in inches |
forecast.0.totalsnowCmPremium | number | 0 | Total snowfall for the day in centimeters |
forecast.0.avgvisKmPremium | number | 10 | Average visibility for the day in kilometers |
forecast.0.avgvisMilesPremium | number | 6 | Average visibility for the day in miles |
forecastSummaryPremium | object | {…} | Derived read of the whole forecast window — when rain is expected and which way the temperature is trending |
forecastSummary.rainExpectedOnPremium | string | 2026-09-23 | Date of the first day at or above a 50 percent chance of rain, or null if none |
forecastSummary.daysWithRainPremium | number | 1 | Number of days in the window at or above a 50 percent chance of rain |
forecastSummary.tempTrendPremium | string | cooling | Direction of travel across the window: warming, cooling, or steady |
forecastSummary.tempTrendCPremium | number | -2.1 | Change in average temperature across the window in degrees Celsius |
forecastSummary.maxChanceOfRainPremium | number | 76 | Highest daily chance of rain across the window as a percentage |
Filling a whole column
Both platforms make one batched call for a column rather than one request per cell, and both cost the same — 10 credits per row looked up. How you write it differs, because the two runtimes batch at different points.
=VERVE("weatherforecast", A2:A100, "field", "tempC")In Google Sheets, give the arguments ranges and the answers spill down from the cell you typed in. Custom functions there run synchronously and in isolation, so dragged cells cannot be coalesced — the range form is how a column becomes one call. The "field" pair is required here: a per-row two-column table has nowhere to spill. Use a full column per input (A2:A100, not A2) — a single-cell reference is read as row 1 only and the rest of the column comes back blank.
In Excel, type the formula once and fill down — no range form and none needed, because its runtime is asynchronous and the add-in coalesces the calls a fill produces into a single batched request. Do not hand VERVE.CALL a range: Excel flattens it into positional arguments, so A2:A100 arrives as a hundred separate arguments and the cell reads #ERR rather than filling.
Either way, column A holds your city values and the answers land beside them, one row each, blank rows skipped.
When a cell doesn't fill
A failed lookup returns readable text starting with #ERR rather than a spreadsheet error, because Excel cannot show a custom message on a real error — you would get a bare #VALUE! with no reason. The trade-off is that IFERROR() will not catch it; test with LEFT(cell, 4) = "#ERR" instead. Error handling covers the rest.
| Cell reads | What happened |
|---|---|
#ERR Not connected | No API key saved. Open the side panel and connect your account. |
#ERR Replace <name> with a cell or value | A preview formula was copied as-is. Swap the placeholder for a cell reference. |
#ERR No "x" in weatherforecast | An option name this source does not take. The message lists the ones it does. |
#ERR No data point "…" | The "field" path is not in the response. Check it against the table above. |
#PREMIUM(field) | The field exists but your plan does not include it. |
#ERR Out of credits | The cycle's credits are spent. Usage resets on your billing date. |
Before the formula works
The add-in reads the API key you saved once in the side panel — the key never goes in the formula, so a shared sheet does not leak it and a collaborator without access simply sees the last calculated values.
- Install the add-in for Google Sheets or Excel.
- Open the side panel and sign in, or paste a key from your dashboard.
- Type the formula above into any cell.
Use cases
- Delivery Route Planning
- When high winds threaten courier safety, dispatch software checks live wind speeds and compass direction across delivery zones before assigning routes, and reads the coming week of forecasts to reschedule ahead of bad days.
- Travel Booking Portals
- Travel sites display real-time temperatures for destination cities alongside a 7-day outlook so travelers know what conditions to expect across their whole stay.
- Smart Home Thermostats
- Home automation platforms read outdoor temperatures for local zip codes to adjust heating and cooling cycles throughout the day.
- Outdoor Event Management
- Organizers monitor current wind speeds and temperatures by city to decide when to secure temporary staging, and use daily rain chance to pick a date or trigger a postponement early.
- Field Service Scheduling
- Dispatchers check daily rain chance and precipitation totals for the week ahead to slot outdoor jobs like roofing or landscaping onto dry days.
Other ways to use Live Weather & Forecast
Set up Live Weather & Forecast on VerveSheets, or reach the same source a different way. Your VerveSheets account and credits work on all of them — one key, one balance.
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