WATERTOWN, SD 57201 Weather Forecast & Current Conditions

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57201 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
WATERTOWN, SD Current Weather
7:53 PM CDT MAY 18, 2026
Overcast Light Rain Mist NA
Feels Like:	NA
Dewpoint:	NA
Rel. Hum.:	NA%
Visibility:	2 1/2 miles
Wind:	N at 16 mph, gusts to 29
Pressure:
Last 72 hours
Local Area Snow Depth
South Dakota Current Weather
South Dakota MOS Forecast Weather

Regional Weather Maps

(Automated weather data from NWS/FAA)

57201 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	WATERTOWN, SD 57201 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TONIGHT
Showers with a slight chance of thunderstorms this evening. Lows in the upper 30s. North winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100 percent.

TUESDAY
Mostly cloudy. Highs around 50. Northwest winds 15 to 20 mph with gusts up to 30 mph.

TUESDAY NIGHT
Partly cloudy in the evening, then clearing. Areas of frost after midnight. Cold with lows in the lower 30s. North winds 10 to 15 mph with gusts up to 25 mph, becoming southeast around 5 mph after midnight.

WEDNESDAY
Areas of frost in the morning. Mostly sunny. Not as cool with highs in the lower 60s. South winds 5 to 10 mph.

WEDNESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows around 40. South winds around 10 mph with gusts up to 20 mph.

THURSDAY
Partly sunny. Highs in the mid 60s.

THURSDAY NIGHT
Mostly cloudy. A slight chance of showers after midnight. Lows in the lower 40s. Chance of rain 20 percent.

FRIDAY AND FRIDAY NIGHT
Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Highs in the lower 60s. Lows in the lower 40s. Chance of rain 50 percent.

SATURDAY
Mostly cloudy in the morning, then becoming partly sunny. A 20 percent chance of showers. Highs in the upper 60s.

SATURDAY NIGHT
Mostly cloudy with a slight chance of showers in the evening, then partly cloudy after midnight. Lows in the upper 40s. Chance of rain 20 percent.

SUNDAY
Partly sunny. Warmer with highs around 80.

SUNDAY NIGHT
Partly cloudy with a slight chance of thunderstorms in the evening, then mostly clear after midnight. Lows in the lower 50s. Chance of rain 20 percent.

MEMORIAL DAY
Partly sunny. Highs in the mid 80s.

57201 WEATHER SATELLITE LOOPS

Visible Weather Satellite
WATERTOWN, SD 57201

Infrared Weather Satellite
WATERTOWN, SD 57201

57201 WEATHER RADAR LOOP

NEXRAD Weather Radar
WATERTOWN, SD 57201

MOS COMPUTER WEATHER FORECAST

WATERTOWN, SD 3 hourly weather forecast

weather forecast created 7:00 AM CDT 5/18/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
18 MAY 2026

1 PM

51°

46°

Mostly Cloudy

74%
RAIN
.25–.5 in

0% Thunder
( 20% severe)

N 16

80%

45°

High 52°

4 PM

51°

46°

Mostly Cloudy

NA 15

83%

46°

Mostly Cloudy

Rain Likely

Breezy

7 PM

49°

43°

Mostly Cloudy

89%
RAIN
***

0% Thunder
( 14% severe)

N 16

86%

45°

10 PM

46°

39°

Overcast

NNW 18

86%

42°

Tuesday
19 MAY 2026

1 AM

43°

35°

Overcast

20%
RAIN
.01–.1 in

0% Thunder
( 2% severe)

NNW 17

89%

40°

Low 37°

4 AM

40°

31°

Mostly Cloudy

NW 17

96%

39°

High 51°

7 AM

39°

30°

Mostly Cloudy

1%

0% Thunder
( 2% severe)

NW 17

89%

36°

Mostly Cloudy

Breezy

10 AM

42°

33°

Mostly Cloudy

NW 18

79%

36°

1 PM

46°

39°

Mostly Cloudy

0%

0% Thunder
( 1% severe)

NW 17

68%

36°

4 PM

49°

43°

Mostly Cloudy

NW 16

61%

36°

7 PM

49°

44°

Partly Cloudy

0%

0% Thunder
( 1% severe)

NW 14

58%

35°

10 PM

43°

40°

Partly Cloudy

NA 5

76%

36°

Wednesday
20 MAY 2026

1 AM

39°

37°

Partly Cloudy

0%

0% Thunder
( 0% severe)

CALM

82%

34°

Low 32°

4 AM

36°

34°

Partly Cloudy

CALM

89%

33°

High 63°

7 AM

37°

35°

Partly Cloudy

0%

0% Thunder
( 0% severe)

CALM

89%

34°

Partly Cloudy

10 AM

50°

48°

Clear

S 6

58%

36°

1 PM

58°

56°

Partly Cloudy

0%

0% Thunder
( 2% severe)

S 8

44%

36°

4 PM

62°

61°

Partly Cloudy

S 10

38%

36°

7 PM

61°

60°

Partly Cloudy

S 10

41%

37°


WATERTOWN, SD extended weather forecast
Thursday 21 MAY 2026	Friday 22 MAY 2026	Saturday 23 MAY 2026	Sunday 24 MAY 2026	Monday 25 MAY 2026
Low 45°	Low 48°	Low 47°	Low 50°	Low 56°
High 68°	High 60°	High 69°	High 78°	High 80°

Mostly Cloudy 22% Rain	Overcast 74% Rain	Overcast 72% Rain	Partly Cloudy 30% Rain	Mostly Cloudy 39% Rain

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