Weather Lookup

Current Conditions — KATY

75°F Clear
💧 Humidity 78%
💨 Wind 5 mph SE
👁 Visibility 10.0 mi
🌡 Pressure 29.94 inHg

Hourly Forecast — Watertown,SD

1:00 AM 73°F Patchy Smoke 💨 5 mph SE
2:00 AM 72°F Patchy Smoke 💨 5 mph SSE
3:00 AM 71°F Patchy Smoke 💨 5 mph SSE
4:00 AM 70°F Patchy Smoke 💨 5 mph SSE
5:00 AM 71°F Patchy Smoke 💨 5 mph SSE
6:00 AM 69°F Patchy Smoke 💨 5 mph SSE
7:00 AM 71°F Patchy Smoke 💨 6 mph SSE
8:00 AM 73°F Patchy Smoke 💨 6 mph S
9:00 AM 76°F Patchy Smoke 💨 7 mph S
10:00 AM 82°F Patchy Smoke 💨 8 mph S
11:00 AM 84°F Patchy Smoke 💨 8 mph S
12:00 PM 87°F Patchy Smoke 💨 8 mph S
1:00 PM 90°F Patchy Smoke 💨 8 mph S
2:00 PM 90°F Patchy Smoke 💨 8 mph SSE
3:00 PM 90°F Sunny 💨 8 mph SSE
4:00 PM 91°F Mostly Sunny 💨 8 mph SSE
5:00 PM 90°F Sunny 💨 8 mph SSE
6:00 PM 90°F Patchy Smoke 💨 8 mph SSE
7:00 PM 89°F Patchy Smoke 💨 7 mph SSE
8:00 PM 86°F Patchy Smoke 💨 8 mph SSE
9:00 PM 82°F Patchy Smoke 💨 8 mph S
10:00 PM 79°F Patchy Smoke 💨 8 mph SSE
11:00 PM 78°F Patchy Smoke 💨 9 mph SSE
12:00 AM 77°F Patchy Smoke 💨 10 mph SSE

Daily Forecast — Watertown,SD

Overnight 69°F Patchy Smoke 💨 5 mph SSE
Wednesday 92°F Patchy Smoke 💨 5 to 8 mph SSE
Wednesday Night 71°F Patchy Smoke 💨 7 to 10 mph SSE
Thursday 84°F Showers And Thunderstorms 💨 13 mph S
Thursday Night 65°F Showers And Thunderstorms 💨 7 to 12 mph ENE
Friday 81°F Showers And Thunderstorms Likely 💨 15 mph NNE
Friday Night 61°F Slight Chance Showers And Thunderstorms then Mostly Clear 💨 3 to 12 mph N
Saturday 82°F Sunny 💨 3 to 7 mph NNE
Saturday Night 63°F Mostly Clear 💨 7 mph ESE
Sunday 84°F Sunny 💨 7 to 17 mph S
Sunday Night 66°F Mostly Clear 💨 20 mph SSE
Monday 86°F Sunny 💨 21 mph S
Monday Night 61°F Chance Showers And Thunderstorms 💨 10 to 20 mph ENE
Tuesday 78°F Chance Showers And Thunderstorms 💨 12 mph NNE

Forecast Discussion — ABR

View Full Discussion on NOAA →

Key Messages

- western wildfire smoke may impact visibility at times across the region through this evening.

- temperatures remain 5 to 15 degrees above normal through at least mid-week.

- a marginal risk (level 1 of 5) for severe weather is in place over parts of far north central south dakota wednesday evening. Wind gusts of 60 miles per hour will be the main severe threat.

- a marginal risk (level 1 of 5) for severe weather is in place over central and northeast sd into west central mn for thursday. The main hazard will be wind gusts of 60 MPH.

Update

Issued at 1227 AM CDT wed jul 29 2026

Update for 06Z aviation discussion.

Update issued at 610 PM CDT tue jul 28 2026

The forecast remains on track this evening. Pops may be a little overdone in the east, but there are numerous boundaries where a shower or two may develop so no changes planned at this time.

Discussion

Issued at 1233 PM CDT tue jul 28 2026

As of 12:30 PM CDT, temperatures are in the 80S with winds out of the south to southwest. There is a good amount of elevated smoke in the area resulting in hazy skies and some surface level smoke mainly around the missouri river bringing some slight reductions in visibility. There is about a 30% chance for some precipitation today across northeast sd. There could be some weak thunderstorms producing some small hail and/or wind gusts of 35 to 45 MPH but organized severe storms are not expected. Timing for storms is between 5 and 10 PM CDT.

A shortwave moves across the region thursday bringing a chance for storms starting wednesday evening. There is a marginal risk (level 1 out of 5) for severe storms over corson county, main hazard will be wind gusts of 60-70 MPH. Precipitation chances of 40 to 50% spread east through the overnight and during the day thursday, increasing to 70 to 90% for the afternoon and evening hours. There is a marginal risk (level 1 out of 5) for severe storms across the entire forecast area. The main threat with these storms will be strong wind gusts of at least 60 MPH. There is also potential for heavy rain. PWAT values east of the missouri river range from 1 to 2 inches. With how dry we have been there may be a chance for some localized flash flooding over northeast sd but confidence is somewhat low. The weather prediction center has highlighted areas along and east of the james river in a slight risk (level 2 out of 4) for excessive rainfall. Timing for severe storm development will be dependent on frontal progression.

Friday through monday looks to be generally dry. There are a couple slight chances for precip along the nd/sd border, but nothing about 20%. Models are starting to show some increased chances for tuesday but that's 7 days out so few details are available. Temperatures through the rest of the work week will be a little cooler with highs in the 80S before we see another increase for the weekend. Then it looks like we will have another slight cool down for next work week. Winds sunday look to gust to 30 to 40 MPH as low pressure moves in behind high pressure. Gusts of 30-35 MPH will continue into monday as a low moves into the area.

Aviation — 06Z Tafs Through 06Z Thursday

Issued at 1227 AM CDT wed jul 29 2026

Terminals kabr,katy,kpir,kmbg

Expect VFR conditions through the next 24 hours. The main concern will be near surface smoke dropping visibility to 6sm at times. At 05Z all of the air quality reporting platforms were in the moderate (yellow) category across the forecast area.

Radar — KABR

Radar loop for KABR

Surface Analysis — Central U.S. (North)

Surface map for Central U.S. (North)

Satellite

Satellite imagery
Expanded view