Outdoor conditions in

Grenville

South Dakota
Now
  1. 44°Slight Chance Rain Showers15% rain100% humidityGusts 13 mph
  2. 46°Slight Chance Rain Showers22% rain100% humidityGusts 16 mph
  3. 48°Mostly Cloudy7% rain89% humidityGusts 21 mph
  4. 50°Mostly Cloudy2% rain83% humidityGusts 25 mph
  5. 52°Mostly Cloudy1% rain74% humidityGusts 29 mph
  6. 52°Partly Sunny0% rain71% humidityGusts 31 mph
  7. 52°Partly Sunny0% rain59% humidityGusts 35 mph
  8. 49°Partly Sunny0% rain61% humidityGusts 37 mph
  9. 49°Partly Sunny0% rain58% humidityGusts 38 mph
  10. 49°Partly Sunny2% rain56% humidityGusts 39 mph
  11. 47°Mostly Cloudy7% rain63% humidityGusts 40 mph
  12. 45°Chance Rain Showers10% rain73% humidityGusts 38 mph
  13. 43°Cloudy8% rain79% humidityGusts 39 mph
  14. 43°Cloudy7% rain79% humidityGusts 39 mph
  15. 43°Chance Rain Showers40% rain82% humidityGusts 39 mph
  16. 42°Rain Showers Likely62% rain82% humidityGusts 39 mph
  17. 43°Rain Showers Likely58% rain82% humidityGusts 39 mph
  18. 43°Chance Rain Showers53% rain82% humidityGusts 40 mph
  19. 42°Rain Showers Likely56% rain82% humidityGusts 43 mph
  20. 42°Chance Rain Showers38% rain79% humidityGusts 44 mph
  21. 41°Chance Rain Showers13% rain82% humidityGusts 44 mph
  22. 40°Cloudy6% rain82% humidityGusts 44 mph
  23. 39°Mostly Cloudy2% rain79% humidityGusts 43 mph
  24. 39°Cloudy0% rain82% humidityGusts 40 mph
Extra care for

A little farther out

The next five days

Today

Today has a real shower chance.

Rain
62%
Humidity
56–100%
Wind
40 mph
Fri

Friday has a real shower chance.

Rain
58%
Humidity
45–82%
Wind
44 mph
Sat

Saturday looks breezy.

Rain
0%
Humidity
39–73%
Wind
35 mph
Sun

Sunday looks breezy.

Rain
0%
Humidity
40–63%
Wind
30 mph
Mon

Monday looks fairly quiet.

Rain
0%
Humidity
39–73%
Wind
15 mph
  1. 52° / 42°Today has a real shower chance.62% rain · Humidity 56–100% · Wind 40 mph
  2. 47° / 38°Friday has a real shower chance.58% rain · Humidity 45–82% · Wind 44 mph
  3. 60° / 38°Saturday looks breezy.0% rain · Humidity 39–73% · Wind 35 mph
  4. 64° / 47°Sunday looks breezy.0% rain · Humidity 40–63% · Wind 30 mph
  5. 63° / 45°Monday looks fairly quiet.0% rain · Humidity 39–73% · Wind 15 mph

Environmental watch

Air quality + smoke

Air quality

Watertown area · Updated Thu 7:25 AM
31GoodUS AQI

No fresh outlook yet.

Sky check

No plume detected overhead

Satellite view · Updated Thu 7:45 AM

Air near ground31 · Good US AQI

Rain, in motion · Past four hours

Grenville radar

Ready when you areSee what is moving toward Grenville.

Watch the last four hours of rain, then search any nearby trail, lake, or address.

View the official forecast ↗

Outdoor fire check

Thinking about a backyard fire?

Conditions could spread a fire quickly.

Wind, gusts, or the combination of dry air and wind raises the concern.

Next 12 hoursChoose a time to see what is driving the concern.
Selected timeNowLower weather concern

Humidity is 100% with light wind and gusts below 14 mph.

Humidity
100%
Wind
7 mph
Gusts
13 mph

Check local rules. Weather is only part of the decision. Check city, county, and land-manager fire restrictions before lighting any outdoor fire.

About these readingsSources and local limits

Weather

Forecasts, alerts, and radar come from NOAA and the National Weather Service.

Air quality

This reading describes Watertown area, about 41 miles away. Conditions can differ at this exact spot.

Smoke

Satellite imagery shows smoke overhead. It cannot tell us how much smoke has reached breathing level.

This page represents Grenville, SD, so conditions can vary from street to street. Environmental data: AirNow · participating air agencies · preliminary real-time US AQI · NOAA Hazard Mapping System · satellite-observed smoke.