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Shaded-relief atlas plate of Rock Lake, Minnesota: rivers, roads, the city limits and where the water drains.
MINNESOTA · LYON COUNTY

Rock Lake

276 people, 1,560 ft above sea level in Lyon County.

1,560 ftElevation, city center
276People, 2024 estimate
33 sq miLand area
Sunny 66°
Sunny now Dew point 66° · SW 9 mph · high 67°
City of Rock Lake River Interstate 2 miles
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The Rock Lake plate. Relief from Copernicus GLO-30; rivers and lakes from USGS NHD; watersheds from the USGS Watershed Boundary Dataset; roads and city limits from Census TIGER 2024.

MILE1
TODAY

Today in Rock Lake

NWS forecast and National Blend of Models · updated 3:00 PM CDT
RIGHT NOW Tracy Municipal Airport (KTKC) · 3:35 PM
Sunny
66° Sunny Feels like 66° · high of 67° near 6 PM
WindSW 9 mphgusts 18
Humidity100%rising to 100% by morning
Pressure29.71 in →steady
Visibility10 mihaze-free
CloudsClear
UV index—no forecast
Dew point 66° · Muggy38° by Friday: drier air arrives
DryComfortableStickyMuggyOppressive
NEXT RAIN
Partly cloudy
Saturday30% chance · showers
LIKELY AMOUNT—amounts come within 3 days
LAST RAINSept. 250.26 in · 4 dry days
ALERTS & OUTLOOKS
No watches or warnings for Lyon County
NWS Sioux Falls and the Storm Prediction Center · checked 3:51 PM
SUN & MOON
↑ 7:18 AM7:08 PM ↓
11 h 50 m of daylight, 3 minutes less than yesterday
Waning gibbous, 89% lit. The Harvest Moon was full Saturday.
AIR & POLLEN
31
GOODAir quality index · ozone
Tomorrow: 33, good. No pollen source yet.

The next three days, hour by hour

Sky: clear, cloudy, night Rain likely National Blend of Models
TUESDAY, SEPT. 29
WEDNESDAY, SEPT. 30
THURSDAY, OCT. 1
FRIDAY, OCT. 2
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
3p
6p
9p
Mid
3a
6a
9a
Noon
mostly cloudy day
mostly cloudy night
mostly cloudy night
partly cloudy night
partly cloudy night
fog
partly cloudy day
partly cloudy day
mostly cloudy day
mostly cloudy night
overcast
mostly cloudy night
partly cloudy night
partly cloudy day
partly cloudy day
partly cloudy day
partly cloudy day
mostly clear night
partly cloudy night
partly cloudy night
mostly clear night
mostly sunny
mostly sunny
partly cloudy day
TEMPERATURE °F
66°
59°
75°
56°
61°
46°
CHANCE OF RAIN
50%
WIND, MPH
14
9
9
8
7
7
6
5
6
5
7
8
10
12
12
13
12
7
7
7
6
5
5
5
HOW IT FEELS · DEW POINT
Sticky: dew points 56 to 65° ↑ The front passes Drier: 38° by Friday

The next seven days, and how sure we are

Forecast, with the range 8 in 10 ensemble members agree on Normal, about 68° / 45°
TUE Sept. 29 Mostly cloudy Mostly cloudy
67° 58°
10% rain — SSW 13 A
WED Sept. 30 Partly cloudy; warmer Partly cloudy; warmer
76° 55°
0% rain — WSW 6 B
THU Oct. 1 Partly cloudy; cooler Partly cloudy; cooler
61° 46°
0% rain — N 12 B
FRI Oct. 2 Partly cloudy Partly cloudy
60° 49°
0% rain — ESE 5 B
SAT Oct. 3 Partly cloudy Partly cloudy
62° 48°
30% rain — W 7 C
SUN Oct. 4 Sunny Sunny
61° 44°
0% rain — N 3 C
MON Oct. 5 Mostly sunny Mostly sunny
60° 52°
0% rain — SSE 9 C
How sure are we? AModels agree: highs within 4° BSome spread: within 8° CWide spread: check back
Range from the National Blend of Models percentiles · graded on Forecast Scores
AIR MAIL

Where today’s air came from

The air arriving over Rock Lake about 5,000 feet above the ground was over Texas three days ago, about 1,270 miles back along its path. It rose from near the ground on the way. Near the ground the air came from the Ozarks; at 10,000 feet, from the southern Rockies. Traced back 72 hours through NOAA’s hourly RAP analyses, nine paths at each of three heights.

MILE7
ON THE NETWORK

Around Rock Lake on the Forecast Network

Neighboring plates

Sioux Falls SD · 64 MI 64 miles southwest Minneapolis MN · 138 MI 138 miles east St. Paul MN · 146 MI 146 miles east Rochester MN · 170 MI 170 miles east
FORECASTCITY
Atlas plate of Rock Lake, Minnesota. Explore the plate
MINNESOTA · LYON

Rock Lake

276 people, 1,560 ft above sea level in Lyon County.

1,560 ftElevation
276People
33 sq miLand
Sunny 66°
SunnyDew point 66°
1

Today in Rock Lake

NEXT 15 HOURS
Now mostly cloudy day 66° 0%
6p mostly cloudy day 67° 2%
9p mostly cloudy night 64° 6%
12a partly cloudy night 64° 1%
3a partly cloudy night 62° 0%
6a fog 60° 0%
Partly cloudy
NEXT RAINSaturday · 30%
→
Tue10%
Mostly cloudy Mostly cloudy
58
67
A
Wed0%
Partly cloudy; warmer Partly cloudy; warmer
55
76
B
Thu0%
Partly cloudy; cooler Partly cloudy; cooler
46
61
B
Fri0%
Partly cloudy Partly cloudy
49
60
B
Sat30%
Partly cloudy Partly cloudy
48
62
C
Sun0%
Sunny Sunny
44
61
C
Mon0%
Mostly sunny Mostly sunny
52
60
C
Letters show how sure the forecast is: A, models agree; B, some spread; C, check back. Sample data.
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