Tonight: Mostly Clear, low 32°F. Hourly and 7-day forecast from the National Weather Service. Times are local (MDT).
Green Grass, SD current weather
48°F
Clear
Forecast for this hour. No recent report from a nearby station.
H -- / L 32°
No rain expected in the next 12 hours
No recent station report. NWS hourly forecast updated 10/28/2026, 6:21 PM PT
Hourly forecast
NWS, updated 10/28/2026, 6:21 PM PT
Now48°
8 PM46°
9 PM43°
10 PM41°
11 PM39°
12 AM36°Thu
1 AM35°
2 AM34°
3 AM33°
4 AM34°
5 AM34°
6 AM33°
7 AM34°
8 AM35°
9 AM40°
10 AM45°
11 AM49°
12 PM53°
1 PM55°
2 PM57°
3 PM59°
4 PM57°
5 PM55°
6 PM52°
7 PM47°
8 PM45°
9 PM43°
10 PM42°
11 PM40°
12 AM39°Fri
1 AM39°
2 AM38°
3 AM37°
4 AM37°
5 AM37°
6 AM36°
7 AM37°
8 AM38°
9 AM41°
10 AM44°
11 AM48°
12 PM51°
1 PM54°
2 PM55°
3 PM56°
4 PM56°
5 PM55°
6 PM53°25%
7-day forecast
Tap a day for details
Today10/28Low 32°High
Tonight: Mostly clear, with a low around 32. Northwest wind 1 to 7 mph.
Mostly Clear
Thu10/29Low 36°High 60°
Thursday: Sunny. High near 60, with temperatures falling to around 55 in the afternoon. Southeast wind 5 to 16 mph, with gusts as high as 25 mph.
Thursday Night: Partly cloudy, with a low around 36. East northeast wind around 7 mph.
Sunny
Fri10/3025% chance of precipitationLow 44°High 57°
Friday: Partly sunny, with a high near 57. East wind 6 to 16 mph, with gusts as high as 25 mph.
Friday Night: A chance of rain. Cloudy, with a low around 44. East southeast wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Partly Sunny
Sat10/31Low 47°High 62°
Saturday: Mostly cloudy, with a high near 62. Southeast wind 10 to 15 mph, with gusts as high as 24 mph.
Saturday Night: Mostly cloudy, with a low around 47. Southeast wind around 10 mph.
Mostly Cloudy
Sun11/176% chance of precipitationLow 48°High 64°
Sunday: A slight chance of rain after 5pm. Partly sunny, with a high near 64. Southeast wind 9 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 20%.
Sunday Night: Rain. Cloudy, with a low around 48. South wind 14 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 80%.
Partly Sunny then Slight Chance Light Rain
Mon11/276% chance of precipitationLow 42°High 54°
Monday: Rain. Cloudy, with a high near 54. Chance of precipitation is 80%.
Monday Night: A chance of rain. Mostly cloudy, with a low around 42. Chance of precipitation is 50%.
Light Rain
Tue11/337% chance of precipitationLow 38°High 52°
Tuesday: A chance of rain. Mostly cloudy, with a high near 52. Chance of precipitation is 40%.
Tuesday Night: A chance of rain. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Chance Light Rain
Wed11/420% chance of precipitationLow High 49°
Wednesday: A slight chance of rain. Partly sunny, with a high near 49. Chance of precipitation is 20%.
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