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Lemmon, SD Weather
Current conditions
Observed at Hettinger, Hettinger Municipal Airport · 1 hr ago
Forecast
10-day-
Today
Sunny. High near 70, with temperatures falling to around 65 in the afternoon. South wind 1 to 7 mph, with gusts as high as 16 mph.
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Tonight
Mostly clear, with a low around 39. North wind 0 to 8 mph, with gusts as high as 17 mph.
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Wednesday
Sunny. High near 64, with temperatures falling to around 62 in the afternoon. Northeast wind 6 to 9 mph, with gusts as high as 20 mph.
National Weather Service forecast updated 1 hr ago.
Hourly
Hourly forecast- Now38°
- 8 AM41°
- 9 AM45°
- 10 AM50°
- 11 AM55°
- 12 PM60°
- 1 PM65°
- 2 PM68°
- 3 PM70°
- 4 PM68°
- 5 PM65°
- 6 PM63°
- 7 PM59°
- 8 PM53°
- 9 PM51°
- 10 PM49°
- 11 PM48°
- Wed12 AM47°
- 1 AM45°
- 2 AM44°
- 3 AM44°
- 4 AM42°
- 5 AM40°
- 6 AM40°
10-day forecast
Details- TodayOct 20Sunny39°70°
- WedOct 21Sunny45°64°
- ThuOct 22Mostly Sunny54°74°
- FriOct 23Slight Chance Rain Showers17%41°75°
- SatOct 24Mostly Sunny32°53°
- SunOct 25Sunny28°53°
- MonOct 26Mostly Sunny29°51°
- TueOct 27Partly cloudy36°53°
- WedOct 28Mostly sunny29°48°
- ThuOct 29Sunny27°42°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news near Lemmon
More weather news- Volume 30 - No. 16 - February 17, 2021
Read this weeks articles below. Steam billows up from the water at Frog Rapids Bridge, where Pelican Lake meets Abram Lake, at 9:30 a.m. on Feb. 11. The temperature was nearly -40 C at the time. An extreme cold warning…
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Rain, gusts up to 55 mph and freezing temperatures ahead for KOTA TerritoryRAPID CITY, S.D. (KOTA) -howers will spread across northeastern Wyoming and western South Dakota on Wednesday, followed by strong winds Thursday and freezing temperatures in many communities Friday morning. The…
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Dangerous Freeze Warnings Issued for North and South Dakota as Temperatures PlummetFreeze Warnings take effect overnight across North Dakota and northern South Dakota, with lows as low as 28 degrees in Bismarck, Minot and Williston, likely ending the growing season for many areas. The warnings run…
- South Dakota Winter Weather: Sioux Falls Snow Near Nov. 6?
Sioux Falls, SD – South Dakota residents wondering when the first measurable snowfall of the 2026 winter season might arrive have an early November date to watch. Sioux Falls typically records its first accumulating…
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Freeze Warning Issued for Parts of South Dakota and MinnesotaForecasters say sub‑freezing temperatures could dip to around 30 degrees, bringing the first significant freeze of the season to the region. Areas in the warning in South Dakota include Codington, Deuel, Grant, and…
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Freeze Watch Posted for Eastern South DakotaGo Watertown Radio SIOUX FALLS, S.D.–Low temperatures are forecasted to fall down to near to just below freezing near and east of the James River early Saturday morning. These freezing temperatures could be hazardous to…
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South Dakota Declares October 28 Winter Weather Preparedness DayLike it or not, it's coming. According to the calendar, winter doesn't officially arrive until December 21st, but we know better around here. To get ready for everything winter can throw at us, the National Weather…
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NOAA: El Niño Likely to Bring Warmer-Than-Average Winter to South DakotaNortheast Radio SD News – Watertown, SD - The National Weather Service says the Northern Plains should prepare for a warmer‑than‑average winter, as strong El Niño conditions are expected to influence temperatures and…
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South Dakota PUC Encourages Consumers to Prepare for the Season Ahead on Winter Weather Preparedness Day“The best time to prepare for severe weather is before it becomes an emergency. Simple steps like preparing an at-home emergency kit, reviewing generator safety guidelines, and ensuring you have a carbon monoxide…
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South Dakota PUC Encouraging Winter Weather PreparednessGo Watertown Radio PIERRE, S.D.–The National Weather Service has selected October 28th as Winter Weather Preparedness Day in South Dakota. Public Utilities Commissioners (PUC) encourage South Dakotans to use the day as…
Sun & moon
Almanac
MonthlyLemmon, records since 1909. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Forecasters' discussion
From the National Weather Service office in UNR, issued 8 hrs ago
Key Messages
- Warm and dry weather through much of this week.
Update
Issued at 1101 PM MDT Mon Oct 19 2026
No major forecast changes were needed with this evening's update. Fairly quiet/low-impact weather continues this week, with diurnally breezy conditions for some areas. Next chance of precip still looks to hold off until at least Friday.
Discussion
(This Evening Through Monday) Issued at 1244 PM MDT Mon Oct 19 2026
Current upper air analysis shows southwest flow over the US as trof deepens off the coast of the PNW. The CWA sits under mostly clear skies with sfc stations reporting temps in the upper 50s to low 60s.
Broad ridging will dominate the pattern through this week, keeping conditions warm and dry. Weak shortwave and attendant cool front will cross the region late Tuesday. Not expecting any precip with this system but highs will be slightly cooler on Wednesday.
Amplifying upper ridge and breezy southerly flow will support much warmer temps on Thursday with highs in the upper 70s to low 80s across much of the region.
Our next chance at precip comes this weekend as trof pushes onshore over the western US. Deterministic and ensemble model solutions diverge on the evolution of this trof as it pushes eastward into the central US, leading to low forecast certainty on timing and specific impacts from this system.
Aviation
(For the 06Z TAFS Through 06Z Tuesday Night) Issued At 933 PM MDT Mon Oct 19 2026
VFR conditions through the forecast period. Breezy winds will continue to slowly diminish across the northeast Wyoming and northwest South Dakota plains before shifting to the north around 20/19-22z.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.