
Deerfield Lake
Nestled amidst the stunning natural beauty of Pennington County, South Dakota, lies the serene Deerfield Reservoir - a tranquil oasis waiting to be discovered. Located just 20 miles west of Hill City, this enchanting reservoir is managed by the Bureau of Reclamation, ensuring that it remains a pristine and unspoiled natural paradise. With Castle Creek flowing into and out of the reservoir, the waters are teeming with a variety of fish species, making it a popular destination for avid anglers seeking a thrilling and rewarding fishing experience. And during the winter months, the reservoir transforms into a wonderland of ice, offering the perfect opportunity for ice fishing, snowmobiling, and ice skating. But that's not all there is to discover at Deerfield Reservoir. The complex boasts three campgrounds, two boat launches, and two picnic areas, offering ample space to relax, unwind and soak up the breathtaking scenery. And for those who enjoy exploring the great outdoors, the Deerfield Lake Loop Trail (Trail #40L) provides an unforgettable hiking experience, leading you through the stunning forested landscape that surrounds the reservoir. One of the unique features of Deerfield Reservoir is the no-wake restriction, limiting travel on the reservoir to a leisurely five miles per hour. This ensures a peaceful and tranquil environment, perfect for those looking to escape the stresses of everyday life and immerse themselves in the beauty of nature. So why not pack up your fishing gear, lace up your hiking boots, or simply grab a picnic blanket and come and explore the natural wonder of Deerfield Reservoir? You'll be transported to a world of peace and tranquility, where the worries of the world simply fade away, and the only sounds you'll hear are the gentle rustling of leaves, the chirping of birds, and the soothing lapping of the water against the shore.
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Deerfield Lake
Nestled amidst the stunning natural beauty of Pennington County, South Dakota, lies the serene Deerfield Reservoir - a tranquil oasis waiting to be discovered. Located just 20 miles west of Hill City, this enchanting reservoir is managed by the Bureau of Reclamation, ensuring that it remains a pristine and unspoiled natural paradise. With Castle Creek flowing into and out of the reservoir, the waters are teeming with a variety of fish species, making it a popular destination for avid anglers seeking a thrilling and rewarding fishing experience. And during the winter months, the reservoir transforms into a wonderland of ice, offering the perfect opportunity for ice fishing, snowmobiling, and ice skating. But that's not all there is to discover at Deerfield Reservoir. The complex boasts three campgrounds, two boat launches, and two picnic areas, offering ample space to relax, unwind and soak up the breathtaking scenery. And for those who enjoy exploring the great outdoors, the Deerfield Lake Loop Trail (Trail #40L) provides an unforgettable hiking experience, leading you through the stunning forested landscape that surrounds the reservoir. One of the unique features of Deerfield Reservoir is the no-wake restriction, limiting travel on the reservoir to a leisurely five miles per hour. This ensures a peaceful and tranquil environment, perfect for those looking to escape the stresses of everyday life and immerse themselves in the beauty of nature. So why not pack up your fishing gear, lace up your hiking boots, or simply grab a picnic blanket and come and explore the natural wonder of Deerfield Reservoir? You'll be transported to a world of peace and tranquility, where the worries of the world simply fade away, and the only sounds you'll hear are the gentle rustling of leaves, the chirping of birds, and the soothing lapping of the water against the shore.
Read more detailsCurrent Conditions
Water Temperature
Current water temperature for Deerfield Lake is 44°F.
Current Snapshot
Forecast: Thursday, May 1
HeavySnow
Hourly Insights
Temperature
Precipitation
Wind
Sun, Moon & UV
Solunar Fishing Forecast
Todays action is rated a 2 (scale is 0 thru 5, 5 is the best)
10:26 PM - 12:56 AM
7:59 AM - 10:29 AM
2:00 PM - 3:30 PM
6:00 AM - 6:00 AM
Outlook for Thursday at Deerfield Lake
Expect temperatures ranging from 32°F to 44°F. There's a 100% chance of snow, potentially bringing around 2.5" snow. Winds will be averaging 9 mph, with potential gusts reaching up to 34 mph. The maximum UV index will be 4 (Moderate), so plan sun protection accordingly. For anglers, today's fishing action is rated 2/5 (Todays action is rated a 2 (scale is 0 thru 5, 5 is the best)). Look for the best bite times during the major periods around 10:26 PM and 7:59 AM, or try the minor windows near 2:00 PM and 6:00 AM for potential early morning or evening action. Check back for the latest conditions and forecasts for Deerfield Lake.
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Lake Information
Common Fish Species
Nearby Lakes
Water Temperature History
Trends for Deerfield Lake
Current Temp
Latest recorded surface temperature.
Lowest in Period
32°F
On Jan 22
Coldest point in the Last 12 Months.
Average in Period
46°F
Typical temp during the Last 12 Months.
Temperature Trend: Last 12 Months
Surface temperature over the selected period.
Key Observations (Last 12 Months)
- Warmest avg: July (72°F).
- Coolest avg: February (32°F).
- Rapid warming often occurs: April → May (+18°F).
- Sharpest cooling trend: September → October (-17°F).
Weather Forecast
Wind speed and pressure trends
Hourly Wind Forecast
Wind Direction
257°
Pressure
1016 mb
Cloud Cover
86%
Visibility
10 miles
Daily Pressure Forecast


Frequently Asked Questions About Deerfield Lake
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