Current Weather Observation at an Airport Station (Iowa Environmental Mesonet)
iem/station-current-obs
The latest weather observation held for one ASOS/AWOS airport weather station: air temperature, dew point, wind speed and direction, altimeter and sea-level pressure, visibility, sky cover layers, present weather, the day's high and low, and the raw METAR text. Needs the station id (DSM for Des Moines) and its network id (IA_ASOS). Observations refresh every 5 to 60 minutes depending on the station. A station the service does not know returns an empty object. Iowa Environmental Mesonet data, passed through unmodified and served by Omnial; not an official Iowa Environmental Mesonet product.
Price
$0.0026 per call
You pay the price shown. If a call turns out to cost more than its quote, you pay the actual price, capped at twice the quote. No monthly minimum. Top-ups start at $5.
Data source
Data from the Iowa Environmental Mesonet, Iowa State University; public domain per mesonet.agron.iastate.edu/disclaimer.php. Served by Eden Engine; not an official Iowa Environmental Mesonet product.
Use it
Five steps: search, inspect, learn, run, settle. No per-tool setup; your agent reaches this tool through the meta-tools it already has.
Connect once and your AI can find and run this tool, and any other it needs.
// 1. search: find the tool
omnial_search({ query: "what you need" })
// 2. inspect: price and input schema
omnial_inspect({ tool: "iem/station-current-obs" })
// 3. learn: read the usage guide at runtime
omnial_learn({ tool: "iem/station-current-obs" })
// 4. run: price the exact call first, then run it
omnial_execute({ tool: "iem/station-current-obs", input: { /* see input_schema */ }, dry_run: true })
omnial_execute({ tool: "iem/station-current-obs", input: { /* ... */ } })
// 5. settle: the call is charged when it finishes, nothing to doNot connected yet? Point your MCP client at https://mcp.eden-engine.com/mcp, then copy a config for your client.
Pricing
Every charge this tool can incur.
| Charge | Price |
|---|---|
Per call | $0.0026 |
- Updated
- Oct 20, 2026
Input and output schemas
Input schema
{
"type": "object",
"required": [
"station",
"network"
],
"properties": {
"network": {
"type": "string",
"pattern": "^[A-Za-z0-9_-]{2,32}$",
"description": "The network the station belongs to, for example IA_ASOS for the Iowa ASOS stations. A station asked for under a network it is not in returns an empty object."
},
"station": {
"type": "string",
"pattern": "^[A-Za-z0-9_-]{2,16}$",
"description": "Station identifier as the Iowa Environmental Mesonet lists it: three or four characters for a US airport, for example DSM for Des Moines. This is the identifier without the leading K that appears in the raw METAR."
}
},
"additionalProperties": false
}Output schema
{
"type": "object",
"properties": {
"id": {
"type": "string",
"description": "The station identifier."
},
"last_ob": {
"type": "object",
"properties": {
"raw": {
"type": "string",
"description": "The raw METAR report text."
},
"mslp[mb]": {
"type": [
"number",
"null"
],
"description": "Sea-level pressure, millibars."
},
"presentwx": {
"type": "array",
"items": {
"type": "string"
},
"description": "Present weather codes (RA, SN, FG ...); empty when none."
},
"utc_valid": {
"type": "string",
"description": "Observation time, UTC."
},
"airtemp[F]": {
"type": [
"number",
"null"
],
"description": "Air temperature, degrees Fahrenheit."
},
"local_valid": {
"type": "string",
"description": "Observation time in the station's local time zone, no offset."
},
"feelslike[F]": {
"type": [
"number",
"null"
],
"description": "Apparent temperature, degrees Fahrenheit."
},
"skylevel[ft]": {
"type": "array",
"items": {
"type": [
"number",
"null"
]
},
"description": "Cloud base height in feet for each layer in skycover, padded with null."
},
"altimeter[in]": {
"type": [
"number",
"null"
],
"description": "Altimeter setting, inches of mercury."
},
"windspeed[kt]": {
"type": [
"number",
"null"
],
"description": "Wind speed in knots."
},
"skycover[code]": {
"type": "array",
"items": {
"type": [
"string",
"null"
]
},
"description": "Sky cover code per cloud layer (CLR, SCT, BKN, OVC ...), up to four, padded with null."
},
"dewpointtemp[F]": {
"type": [
"number",
"null"
],
"description": "Dew point, degrees Fahrenheit."
},
"precip_today[in]": {
"type": [
"number",
"null"
],
"description": "Precipitation so far today, inches."
},
"visibility[mile]": {
"type": [
"number",
"null"
],
"description": "Visibility in statute miles."
},
"max_dayairtemp[F]": {
"type": [
"number",
"null"
],
"description": "Highest air temperature so far today, degrees Fahrenheit."
},
"min_dayairtemp[F]": {
"type": [
"number",
"null"
],
"description": "Lowest air temperature so far today, degrees Fahrenheit."
},
"winddirection[deg]": {
"type": [
"number",
"null"
],
"description": "Wind direction in degrees."
}
},
"description": "The latest observation. Each key carries its unit in brackets. A measurement the station does not report is null.",
"additionalProperties": true
},
"network": {
"type": "string",
"description": "The network the station belongs to."
},
"generated_at": {
"type": "string",
"description": "When the service built this response, UTC."
},
"server_gentime": {
"type": "string",
"description": "Server generation time, UTC."
}
},
"description": "The service's response. An unknown station returns an empty object, so no field is guaranteed.",
"additionalProperties": true
}