Spring Valley Colony, South Dakota Weather
Thunder stills across the plains. Day 93 of summer. Read this microseason across nine climate regions →
Spring Valley Colony weather forecast — hour by hour, 7-day outlook, NOAA radar
Conditions updated 9:26 AM CDT · Open-Meteo
- TodaySep 21Overcast56%0.28″57°53°—
- TuesdaySep 22Mostly Clear—0.02″59°48°+2°
- WednesdaySep 23Drizzle29%0.02″73°53°+14°
- ThursdaySep 24Light Drizzle28%—65°59°-8°
- FridaySep 25Overcast28%—71°58°+6°
- SaturdaySep 26Overcast28%—76°59°+5°
- SundaySep 27Overcast17%—71°51°-5°
Air quality now AQI 21 · Good
AQI 21 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM scrubbed by 2 hours of recent rain — PM2.5 down to 6.9 µg/m³, PM10 to 7.2 µg/m³.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion during the projected peak around 8 PM.
What's driving it
PM × Wind × Precip
PM scrubbed by 2 hours of recent rain — PM2.5 down to 6.9 µg/m³, PM10 to 7.2 µg/m³.
- PM2.5/PM10
- 0.96
- Wind
- breezy
- Recent rain
- 2h in last 6h
- Pattern
- washed out
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).
September dries up ditches or breaks down bridges.
- Moonrise
- 5:22 PM
- Moonset
- 1:44 AM
- In sign
- ♑︎ Capricorn
Thunder stills across the plains
Read this microseason across nine climate regions →
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Spring Valley Colony at a glance
- Today vs. normal: Today averages 55°F (high 57°F, low 53°F), 4°F below the 59°F normal for Sep 21
- Last frost: May 7 (1991–2020 median, NOAA station 9 km away)
- Microseason: Sep 21–25
- Planting calendar: September — plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots
16-Day Forecast — Spring Valley Colony
- Mon57°53°56%
- Tue59°48°6%
- Wed73°53°29%
- Thu65°59°28%
- Fri71°58°28%
- Sat76°59°28%
- Sun71°51°17%
- Mon67°56°35%
- Tue69°51°34%
- Wed67°49°8%
- Thu67°49°8%
- Fri65°55°14%
- Sat58°47°21%
- Sun58°40°24%
- Mon62°40°23%
- Tue70°53°10%
Forecast data from Open-Meteo (CC BY 4.0).
Right now in the garden
Fall planting + final harvests
As of September 21, the season's first frost (typically October 1) is approaching. Pick what frost-tender plants still carry before the next cold front. This city's planting calendar for September: plant garlic (overwinter); harvest tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, and carrots.
SPC Convective Outlook
Storm Prediction Center — Spring Valley Colony
SPC includes Spring Valley Colony in the general thunderstorm area day after tomorrow — no severe risk, but storms are possible.
- TODAYNONENo severe risk
- TOMORROWNONENo severe risk
- DAY 3TSTMGeneral Thunderstorms
Thunderstorms possible. Not severe, but capable of producing lightning and brief heavy rain.
Source: NOAA / NWS Storm Prediction Center categorical convective outlook.
Sun & seasons in Spring Valley Colony
Spring Valley Colony sits in Jerauld County, where the year’s longest day runs 15h 29m of daylight and its shortest just 8h 53m — a swing of +6h 37m between the June and December solstices. Clocks spring forward on Sunday, March 8, 2026 and fall back on Sunday, November 1, 2026.
Sioux Falls, the state’s largest city, lies about 113 miles to the ESE. The nearest town Spring Valley Colony tracks is Shamrock Colony, roughly 61 miles to the NE.
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, spinach, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, spinach, radishes |
| July | beans, squash, fall brassicas, carrots | lettuce, peas, spinach, beans, summer squash, garlic |
| August | garlic (overwinter) | peas, tomatoes, peppers, beans, summer squash, garlic |
| September | garlic (overwinter) | tomatoes, peppers, beans, summer squash, winter squash, fall brassicas, carrots |
| October | — | fall brassicas, carrots |
A year in weather
In Spring Valley Colony, July runs warmest near 74°F and January coldest around 15°F, while June is the wettest month (4.2 inches) and December the driest (0.3 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 15° | 0.3″ | 5 |
| February | 20° | 0.6″ | 5 |
| March | 32° | 1.0″ | 6 |
| April | 44° | 1.7″ | 9 |
| May | 57° | 3.4″ | 11 |
| June | 68° | 4.2″ | 11 |
| July | 74° | 3.2″ | 9 |
| August | 72° | 2.9″ | 9 |
| September | 62° | 2.8″ | 6 |
| October | 47° | 1.6″ | 6 |
| November | 32° | 0.7″ | 3 |
| December | 20° | 0.3″ | 6 |
Regional context
Similar climates Gann Valley, SD, Wessington Springs, SD, Kimball, SD
Spring Valley Colony swings from 15°F in January to 74°F in July (59°F) per NOAA NCEI 1991-2020 normals; precipitation in Spring Valley Colony runs about 22.7 inches on roughly 86 measurable days.
Spring Valley Colony's rain peaks in summer: June brings 4.2 inches over 10.8 thunderstorm-fed days, while December sees just 0.3 inches across 6.3 days under cooler, drier air. That summer-storm rhythm groups Spring Valley Colony with places like Gann Valley, SD, Wessington Springs, SD and Kimball, SD.
Spring Valley Colony reaches its last hard frost near May 7; that is the cue for kale, peas, spinach, and parsnips. Spring Valley Colony's heat-lovers — tomatoes, peppers, squash — hold off until Spring Valley Colony's frost risk clears, 10-14 days on. Frost returns to Spring Valley Colony near October 1, ending the tender-crop season. That date is a median: Spring Valley Colony freezes sooner in half of years.
Similar climates: Gann Valley, SD, Wessington Springs, SD, Kimball, SD, Lane, SD, White Lake, SD.
Frequently asked
- When does it freeze in Spring Valley Colony?
- Spring Valley Colony's last spring frost lands near May 7, and in Spring Valley Colony the first fall frost follows around October 1.
- What is the rainy season in Spring Valley Colony?
- Rainfall in Spring Valley Colony peaks in June near 4.2 inches, out of about 23 inches annually.
- What is the warmest month in Spring Valley Colony?
- Spring Valley Colony peaks in July, when the mean runs near 74°F.
- What is the coldest month in Spring Valley Colony?
- January is Spring Valley Colony's coldest month, averaging about 15°F.
- When can I start a vegetable garden in Spring Valley Colony?
- Around May 7, start frost-hardy crops in Spring Valley Colony; tomatoes and basil belong a fortnight later.
- How many rainy days does Spring Valley Colony get?
- Expect roughly 86 wet days a year in Spring Valley Colony.
- What hardiness zone is Spring Valley Colony?
- With January around 15°F, Spring Valley Colony's zone reflects that minimum — the USDA ZIP map confirms Spring Valley Colony's band.
- What is the 10-day forecast for Spring Valley Colony?
- Spring Valley Colony's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Spring Valley Colony?
- See this week's day-by-day rain chances for Spring Valley Colony in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Spring Valley Colony?
- Current conditions for Spring Valley Colony and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Spring Valley Colony forecast updated?
- The Spring Valley Colony forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Spring Valley Colony?
- Today's sunrise and sunset times for Spring Valley Colony are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Spring Valley Colony?
- The next few days in Spring Valley Colony's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Spring Valley Colony sits at 44.0°N; its climate zone is warm-summer humid continental (Köppen approximation).
ZIP codes in Spring Valley Colony
- 57382