Forecast by NWS Des Moines, IA · grid 30,70

42.0490, -94.8840

The day

NWS forecast grid, daily figures derived from the hourly
High
73°
Low
63°
Chance
62%
Amount
0.22 in
Wind
10 mph
gusts 20 mph
Sky cover
75%
Thunder
29%
  1. Tuesday

    A slight chance of showers and thunderstorms after 1pm. Mostly cloudy. High near 73, with temperatures falling to around 71 in the afternoon. South southeast wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

  2. Tuesday Night

    Showers and thunderstorms. Mostly cloudy. Low around 63, with temperatures rising to around 65 overnight. South wind around 8 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

Hour by hour

NWS forecast grid

Scroll sideways for more hours. Pick an hour for every number.

Every hour as a table24 hours
TimeWeatherTemperatureFeels likeDew pointHumidityChanceAmountSnowDirWindGustSky coverThunderPressureVisibilityCeiling
Tue 12 AM61°61°60°97%0%SSE6 mph12 mph56%—10 mi
Tue 1 AM61°61°59°93%0%SSE7 mph12 mph64%—10 mi11,400 ft
Tue 2 AM60°60°59°96%0%SSE5 mph12 mph67%—10 mi13,600 ft
Tue 3 AM60°60°58°93%0%SSE5 mph12 mph85%—10 mi14,900 ft
Tue 4 AM60°60°57°90%1%SSE6 mph13 mph79%1%—10 mi15,300 ft
Tue 5 AM60°60°57°90%4%SSE6 mph14 mph72%4%—10 mi14,900 ft
Tue 6 AM60°60°57°90%0%SSE7 mph14 mph77%—10 mi13,400 ft
Tue 7 AM59°59°56°90%0%SSE7 mph14 mph88%—10 mi11,800 ft
Tue 8 AM60°60°57°90%0%S7 mph15 mph85%—10 mi11,300 ft
Tue 9 AM62°62°58°87%0%SSE8 mph16 mph80%—10 mi10,900 ft
Tue 10 AM64°64°59°84%0%SSE8 mph17 mph79%—10 mi10,400 ft
Tue 11 AM66°66°61°84%1%S9 mph17 mph81%1%—10 mi10,000 ft
Tue 12 PM67°67°62°84%12%S10 mph20 mph72%6%—10 mi9,700 ft
Tue 1 PMSlight chance of thunderstorms and slight chance of light rain showers69°69°63°81%15%0.01 inS10 mph20 mph69%15%—10 mi9,300 ft
Tue 2 PM70°70°65°84%4%0.01 inS10 mph20 mph71%4%—10 mi9,500 ft
Tue 3 PM71°71°66°84%8%0.01 inS10 mph20 mph65%8%—10 mi9,600 ft
Tue 4 PMSlight chance of thunderstorms and slight chance of light rain showers71°71°67°87%15%0.01 inS9 mph20 mph78%15%—10 mi9,800 ft
Tue 5 PMSlight chance of thunderstorms and slight chance of light rain showers71°71°67°87%22%0.01 inS9 mph18 mph72%17%—10 mi8,500 ft
Tue 6 PMChance of moderate rain showers and slight chance of thunderstorms72°72°67°84%44%0.01 inS8 mph16 mph66%17%—9 mi7,100 ft
Tue 7 PMLight rain showers likely and slight chance of thunderstorms71°71°67°87%62%0.03 inS7 mph15 mph68%24%—6 mi5,800 ft
Tue 8 PMLight rain showers likely and slight chance of thunderstorms69°69°67°93%62%0.03 inS7 mph16 mph69%24%—6 mi6,300 ft
Tue 9 PMLight rain showers likely and slight chance of thunderstorms68°68°67°97%62%0.03 inS8 mph17 mph81%24%—6 mi6,700 ft
Tue 10 PMLight rain showers likely and chance of thunderstorms67°67°66°97%62%0.03 inS8 mph17 mph93%29%—6 mi7,200 ft
Tue 11 PMLight rain showers likely and chance of thunderstorms66°66°66°100%62%0.03 inS8 mph16 mph93%29%——

Against the record

NOAA GHCN · Carroll (CIN) · 4.9 mi away

Each forecast day against the same calendar date at the nearest long-record station: the 1991 to 2020 normal, and the record high and low with the year they were set.

DayForecastNormalRecord highRecord low
Tue Sep 2973° / 63°71° / 43°91° (2021)19° (1899)

Sun and moon

DayCivil twilightSunriseSunsetCivil twilightDaylightMoon
Tue6:47 AM7:15 AM7:04 PM7:32 PM11 h 49 min Waning gibbous · 90% lit

Forecast from the National Weather Service forecast grid at api.weather.gov, updated by the local office through the day; the written periods and hourly digest are the NWS’s own. Outlooks from the Storm Prediction Center, the Weather Prediction Center and the Climate Prediction Center via NOAA’s map services. Records and normals from NOAA’s Global Historical Climatology Network. Sun and moon computed here. Place names from GeoNames (CC BY 4.0).

What is here

Seven days
The high, the low, the chance and amount of rain and snow, the wind and the forecaster’s words for each day and night, from the National Weather Service grid for the exact cell your town sits in.
Hour by hour
Temperature, what it feels like, dew point, humidity, chance and amount of precipitation, wind and gusts, sky cover, the chance of thunder, pressure, visibility and ceiling, as a chart and as a table, with nights shaded.
Everything else on the grid
The office edits about sixty fields for every cell. The ones the mainstream forecast pages leave out are here as a daily table: HeatRisk, wet bulb globe temperature, lightning activity, mixing height, transport wind, the fire weather indices, and at the coast the waves and swell.
The discussion
The Area Forecast Discussion the forecaster wrote to explain the forecast, in their own words, with the specialist annexes folded away. Also the office’s hazardous weather outlook.
Beyond the week
The Storm Prediction Center’s severe weather category for each of the next eight days, the Weather Prediction Center’s rainfall forecast to day seven and its winter storm severity, and the Climate Prediction Center’s odds for days six to fourteen, all read at your coordinate.
Against the record
Each forecast day beside the same date at the nearest long-record station: the thirty-year normal and the record high and low with their years, so a forecast high that would break a record says so.
The next 90 days
The forecast as far as the grid, the National Blend and the global models reach, and the calendar after that: the normal and the record for every date, with the Climate Prediction Center’s lean for the weeks, the month and the season drawn over them. No made-up highs for a date three months out.

Common questions

Where does this forecast come from?

From the National Weather Service forecast grid published at api.weather.gov, the same grid the local forecast office edits through the day and the source of every forecast on weather.gov. The written periods, the hourly digest and the forecaster’s discussion are the NWS’s own products, shown as issued. Nothing here is a blend a website made.

How far ahead does it go?

The grid runs seven days ahead, hour by hour for the first days and in three to six hour steps after that. The National Blend of Models carries the days to eleven and the global models to sixteen. Beyond that the page carries the national centers’ outlooks, severe weather to day eight, rainfall to day seven, and the Climate Prediction Center’s odds for the coming weeks, month and season, over a ninety-day calendar of the normal and the record for each date. No forecast has skill day by day past about two weeks, and this page does not print one.

Why is this different from the app on my phone?

Most forecast apps show a blend of models chosen by the company that makes the app. This page shows the forecast the local National Weather Service office issues, edited by the forecasters who will also issue the warnings, and it shows all of it rather than the six numbers that fit on a phone. The discussion explains the reasoning, which no app carries.

What is a place’s address here?

Every town has its own page, such as /forecast/us/oklahoma/oklahoma-city/, and every day at a town has one too. A ZIP code typed into the search goes to the town it belongs to. Any coordinate at all can be looked up, and the page names the nearest town.

What the weather actually was · Open the live radar · Where the data comes from