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Official National Weather Service (NWS) point forecast and real-time wind conditions for Lake Francis Case (South Dakota). 24-hour hour-by-hour wind timelines, peak gusts, watercraft recreation safety thresholds, and 7-day marine outlook.
Today: High 63°F · Low 49°F
Peak gusts: 11 mph · Lake surface chop expected
Humidity: 87% · Barometer: 29.98 inHg
USGS water monitoring available for Lake Francis Case.
Excellent for boating (90/100), from 4 available inputs. Supporting this: No active official alerts for this lake. Wind 10 mph from the north-northwest. Not available from a verified source for this lake: visibility and conditions, verified water access. Confidence is moderate (84%) because some inputs are unavailable or older than ideal.
Excellent for fishing (91/100), from 5 available inputs. Supporting this: Wind 10 mph from the north-northwest. Dusk hours (20:00 local). Not available from a verified source for this lake: pressure trend, water temperature. Confidence is moderate (74%) because some inputs are unavailable or older than ideal.
Good for kayaking (89/100), from 5 available inputs. Supporting this: Wind 10 mph from the north-northwest. Gusts to 13 mph. Confidence is high (90%).
Water temperature is not available from a verified source for this lake. No swimming score is shown without it. Supporting this: No active official alerts for this lake. 0% chance of precipitation. Working against it: Air temperature 57°F. Not available from a verified source for this lake: water temperature.
| Time | Air Temp | Wind (mph) | Direction | Peak Gusts | Rain Chance | Sky & Conditions |
|---|---|---|---|---|---|---|
| 8 PM | 57°F | 10 mph | N | ⚡ 13 mph | 0% | Mostly Cloudy |
| 9 PM | 56°F | 10 mph | N | ⚡ 16 mph | 0% | Mostly Cloudy |
| 10 PM | 55°F | 10 mph | N | ⚡ 15 mph | 0% | Mostly Cloudy |
| 11 PM | 54°F | 10 mph | N | ⚡ 16 mph | 2% | Mostly Cloudy |
| 12 AM | 54°F | 10 mph | N | ⚡ 16 mph | 2% | Partly Cloudy |
| 1 AM | 53°F | 10 mph | N | ⚡ 15 mph | 2% | Partly Cloudy |
| 2 AM | 51°F | 10 mph | NE | ⚡ 15 mph | 2% | Partly Cloudy |
| 3 AM | 50°F | 10 mph | N | ⚡ 15 mph | 2% | Partly Cloudy |
| 4 AM | 49°F | 10 mph | NE | ⚡ 15 mph | 2% | Partly Cloudy |
| 5 AM | 49°F | 10 mph | NE | ⚡ 15 mph | 2% | Mostly Cloudy |
| 6 AM | 50°F | 10 mph | NE | ⚡ 16 mph | 3% | Mostly Cloudy |
| 7 AM | 51°F | 10 mph | N | ⚡ 16 mph | 5% | Cloudy |
| 8 AM | 51°F | 10 mph | N | ⚡ 16 mph | 5% | Cloudy |
| 9 AM | 52°F | 10 mph | N | ⚡ 16 mph | 6% | Cloudy |
| 10 AM | 54°F | 5 mph | N | ⚡ 17 mph | 6% | Cloudy |
| 11 AM | 57°F | 5 mph | N | ⚡ 18 mph | 5% | Mostly Cloudy |
| 12 PM | 60°F | 10 mph | NW | ⚡ 20 mph | 3% | Partly Sunny |
| 1 PM | 63°F | 10 mph | NW | ⚡ 22 mph | 2% | Mostly Sunny |
| 2 PM | 65°F | 15 mph | NW | ⚡ 24 mph | 2% | Mostly Sunny |
| 3 PM | 66°F | 15 mph | NW | ⚡ 27 mph | 1% | Mostly Sunny |
| 4 PM | 67°F | 15 mph | NW | ⚡ 28 mph | 1% | Mostly Sunny |
| 5 PM | 66°F | 15 mph | NW | ⚡ 28 mph | 1% | Mostly Sunny |
| 6 PM | 65°F | 15 mph | N | ⚡ 28 mph | 1% | Partly Cloudy |
| 7 PM | 63°F | 15 mph | N | ⚡ 28 mph | 0% | Partly Cloudy |
Mirror-like to gentle rippled water. Optimal conditions for paddleboarding, kayaking, swimming, and beginner water skiing or wakeboarding.
Pleasant breeze with small wavelets. Great for sailing, pleasure cruising, pontoon boats, and trolling for trout and bass.
Moderate waves with whitecaps likely. Requires skilled boat handling; kayaks, canoes, and stand-up paddleboards should stay close to sheltered bays.
Steep waves, cold spray, and hazardous open water. Avoid small craft voyages. Always check official National Weather Service lake wind advisories.
Partly sunny. High near 68, with temperatures falling to around 63 in the afternoon. North northwest wind 10 to 15 mph.
Partly cloudy, with a low around 49. North wind around 10 mph.
Partly cloudy, with a low around 49. North wind around 10 mph.
Partly sunny. High near 69, with temperatures falling to around 66 in the afternoon. North northwest wind 5 to 15 mph, with gusts as high as 30 mph.
Mostly clear, with a low around 45. North northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Mostly sunny, with a high near 61. North northwest wind around 10 mph.
Partly cloudy, with a low around 43. North wind around 10 mph.
Mostly sunny, with a high near 63. North northeast wind 5 to 10 mph.
A chance of rain showers after 7pm. Partly cloudy, with a low around 46. Chance of precipitation is 50%.
A chance of rain showers before 1pm. Mostly cloudy, with a high near 61. Chance of precipitation is 50%.
Partly cloudy, with a low around 41.
Sunny, with a high near 55.
Mostly clear, with a low around 36.
Sunny, with a high near 65.
Lake Francis Case currently reports 60°F with wind velocity near 8 mph from the NW. Atmospheric forecasts and 24-hour hour-by-hour wind timelines are updated hourly from the National Weather Service gridpoint matching the lake's coordinates.
At Lake Francis Case and surrounding mountain valleys, diurnal heating of the surrounding terrain causes strong thermal pressure differentials known locally as afternoon breezes (such as the Washoe Zephyr at Lake Tahoe). Wind speeds typically peak between 1:00 PM and 5:00 PM before calming near sunset.
For stand-up paddleboarding (SUP), canoeing, and light kayaks, winds under 7 mph (light breeze) offer the safest, glassiest surface conditions. Between 8–14 mph, small wavelets develop, suitable for sailboats and powerboats. Winds exceeding 15 mph create steep whitecaps and rapid drift; winds over 21 mph warrant small craft warnings.
All weather and wind telemetry is fetched directly from the National Weather Service (NOAA - WFO FSD) high-resolution numerical point-forecast API. LakeRadar uses the official gridpoint for Lake Francis Case without artificial smoothing or third-party estimates.
Yes. Live hydrological sensor readings, 30-day elevation histories, full-pool benchmarks, and USGS station provenance are available on our dedicated Lake Francis Case Water Level & Temperature page.
View Lake Francis Case Water Level & Temperature →