Forecast by NWS Sioux Falls, SD · grid 124,100
44.3140, -95.9570
The full forecast for 44.3140, -95.9570
The day
NWS forecast grid, daily figures derived from the hourly- High
- 70°
- Low
- 59°
- Chance
- 12%
- Amount
- 0
- Wind
- 15 mph
- gusts 23 mph
- Sky cover
- 78%
- Thunder
- 7%
This Afternoon
A chance of rain showers after 3pm. Mostly cloudy, with a high near 70. South southeast wind 10 to 15 mph.
Tonight
A chance of rain showers before 8pm. Mostly cloudy, with a low around 59. South wind 10 to 15 mph, with gusts as high as 25 mph.
Hour by hour
NWS forecast gridScroll sideways for more hours. Pick an hour for every number.
Every hour as a table17 hours
| Time | Weather | Temperature | Feels like | Dew point | Humidity | Chance | Amount | Snow | Dir | Wind | Gust | Sky cover | Thunder | Pressure | Visibility | Ceiling |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mon 7 AM | Slight chance of very light drizzle and patchy heavy fog | 59° | 59° | 59° | 100% | 12% | SE | 5 mph | 5 mph | 94% | 2% | — | 1.1 mi | 400 ft | ||
| Mon 8 AM | Slight chance of very light drizzle and patchy heavy fog | 60° | 60° | 59° | 96% | 2% | SE | 6 mph | 6 mph | 93% | 2% | — | 1.8 mi | 500 ft | ||
| Mon 9 AM | Slight chance of very light drizzle and patchy heavy fog | 61° | 61° | 61° | 100% | 0% | SSE | 8 mph | 8 mph | 93% | 2% | — | 4 mi | 600 ft | ||
| Mon 10 AM | Patchy fog | 62° | 62° | 62° | 100% | 7% | SSE | 7 mph | 7 mph | 91% | 4% | — | 8 mi | 700 ft | ||
| Mon 11 AM | 64° | 64° | 63° | 97% | 5% | SSE | 7 mph | 7 mph | 87% | 4% | — | 9 mi | 900 ft | |||
| Mon 12 PM | 65° | 65° | 64° | 97% | 3% | SSE | 8 mph | 8 mph | 80% | 3% | — | 10 mi | 1,300 ft | |||
| Mon 1 PM | 67° | 67° | 64° | 90% | 5% | SSE | 10 mph | 13 mph | 65% | 5% | — | 10 mi | 1,800 ft | |||
| Mon 2 PM | 68° | 68° | 63° | 84% | 6% | SSE | 12 mph | 15 mph | 69% | 6% | — | 10 mi | 2,200 ft | |||
| Mon 3 PM | Chance of very light rain showers | 68° | 68° | 63° | 84% | 10% | S | 13 mph | 17 mph | 80% | 7% | — | 10 mi | 2,300 ft | ||
| Mon 4 PM | Chance of very light rain showers | 69° | 69° | 62° | 78% | 10% | S | 14 mph | 20 mph | 76% | 7% | — | 10 mi | 2,500 ft | ||
| Mon 5 PM | Chance of very light rain showers | 69° | 69° | 61° | 76% | 11% | S | 13 mph | 20 mph | 68% | 7% | — | 10 mi | 4,100 ft | ||
| Mon 6 PM | Chance of very light rain showers | 69° | 69° | 61° | 76% | 11% | S | 13 mph | 20 mph | 55% | 7% | — | 10 mi | |||
| Mon 7 PM | Chance of very light rain showers | 67° | 67° | 61° | 81% | 1% | S | 12 mph | 20 mph | 74% | 1% | — | 10 mi | 5,600 ft | ||
| Mon 8 PM | 65° | 65° | 62° | 90% | 1% | S | 13 mph | 21 mph | 67% | 1% | — | 10 mi | 6,500 ft | |||
| Mon 9 PM | 63° | 63° | 62° | 97% | 1% | S | 13 mph | 22 mph | 85% | 1% | — | 10 mi | 6,100 ft | |||
| Mon 10 PM | 63° | 63° | 61° | 93% | 1% | S | 14 mph | 22 mph | 82% | 1% | — | 10 mi | 4,600 ft | |||
| Mon 11 PM | 62° | 62° | 61° | 97% | 1% | S | 15 mph | 23 mph | 74% | 1% | — | 10 mi | 4,500 ft |
Against the record
NOAA GHCN · Marshall/Ryan (MML) · 12 mi awayEach 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.
| Day | Forecast | Normal | Record high | Record low |
|---|---|---|---|---|
| Mon Sep 28 | 70° / 59° | 69° / 44° | 88° (1983) | 22° (1942) |
Sun and moon
| Day | Civil twilight | Sunrise | Sunset | Civil twilight | Daylight | Moon |
|---|---|---|---|---|---|---|
| Mon | 6:49 AM | 7:18 AM | 7:10 PM | 7:39 PM | 11 h 52 min | Waning gibbous · 95% 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