SAINT PETERS, MO 63303 Weather Forecast & Current Conditions

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63303 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
ST. LOUIS, MO Current Weather
12:51 PM CDT APR 3, 2026
Overcast 81°F
Feels Like:	82°F
Dewpoint:	63°F
Rel. Hum.:	54%
Visibility:	10 miles
Wind:	S at 16 mph, gusts to 24
Pressure:	29.97 inches
Last 72 hours
Local Area Snow Depth
Missouri Current Weather
Missouri MOS Forecast Weather

Regional Weather Maps

(Automated weather data from NWS/FAA)

63303 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	SAINT PETERS, MO 63303 Weather Forecast	Snowfall Forecast pages Snow Depth pages

THIS AFTERNOON
Mostly sunny. A slight chance of showers and thunderstorms early, then a chance of showers and thunderstorms. Highs around 80. South winds 5 to 10 mph, increasing to 15 to 20 mph. Chance of rain 30 percent.

TONIGHT
A chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows in the mid 50s. South winds 10 to 15 mph with gusts up to 30 mph. Chance of rain near 100 percent.

SATURDAY
Cloudy with showers with a chance of thunderstorms in the morning, then partly sunny with a chance of showers in the afternoon. Much cooler. Less humid with highs in the lower 60s. West winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 90 percent.

SATURDAY NIGHT
Partly cloudy in the evening, then becoming mostly clear. Much cooler with lows in the upper 30s. Northwest winds 10 to 15 mph with gusts up to 25 mph.

SUNDAY
Sunny. Highs in the upper 50s. Northwest winds 10 to 15 mph.

SUNDAY NIGHT
Clear. Lows around 40.

MONDAY
Sunny. Highs in the lower 60s.

MONDAY NIGHT AND TUESDAY
Partly cloudy. Lows in the mid 30s. Highs in the mid 50s.

TUESDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the upper 30s.

WEDNESDAY
Partly sunny. Not as cool with highs in the lower 70s.

WEDNESDAY NIGHT
Partly cloudy. Not as cool with lows in the lower 50s.

THURSDAY
Mostly sunny. A slight chance of showers in the afternoon. Highs in the mid 70s. Chance of rain 20 percent.

63303 WEATHER SATELLITE LOOPS

Visible Weather Satellite
SAINT PETERS, MO 63303

Infrared Weather Satellite
SAINT PETERS, MO 63303

63303 WEATHER RADAR LOOP

NEXRAD Weather Radar
SAINT PETERS, MO 63303

MOS COMPUTER WEATHER FORECAST

ST. LOUIS, MO 3 hourly weather forecast

weather forecast created 6:00 AM CST 4/ 3/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Friday
3 APR 2026

12 PM

77°

79°

Mostly Cloudy

45%
RAIN
.01–.1 in

0% Thunder
( 29% severe)

S 14

62%

63°

High 81°

3 PM

80°

81°

Mostly Cloudy

S 15

54%

62°

Mostly Cloudy

Rain Likely

6 PM

78°

79°

Mostly Cloudy

70%
RAIN
.1–.25 in

0% Thunder
( 48% severe)

S 13

54%

60°

9 PM

73°

73°

Mostly Cloudy

S 13

66%

61°

Saturday
4 APR 2026

12 AM

71°

71°

Mostly Cloudy

96%
RAIN
***

0% Thunder
( 38% severe)

S 13

71%

61°

Low 55°

3 AM

66°

66°

Mostly Cloudy

SW 12

81%

60°

High 62°

6 AM

60°

58°

Mostly Cloudy

72%
RAIN
***

0% Thunder
( 9% severe)

W 12

87%

56°

Mostly Cloudy

Rain Likely

9 AM

57°

54°

Mostly Cloudy

WNW 14

77%

50°

12 PM

55°

51°

Mostly Cloudy

19%
RAIN
.01–.1 in

0% Thunder
( 1% severe)

WNW 15

66%

44°

3 PM

56°

52°

Mostly Cloudy

WNW 16

55%

40°

6 PM

53°

48°

Partly Cloudy

2%

0% Thunder
( 1% severe)

WNW 15

52%

36°

9 PM

48°

43°

Partly Cloudy

WNW 12

58%

34°

Sunday
5 APR 2026

12 AM

45°

40°

Partly Cloudy

1%

0% Thunder
( 1% severe)

WNW 10

63%

33°

Low 40°

3 AM

43°

37°

Partly Cloudy

WNW 10

65%

32°

High 60°

6 AM

40°

33°

Partly Cloudy

1%

0% Thunder
( 0% severe)

WNW 10

70%

31°

Partly Cloudy

9 AM

47°

41°

Partly Cloudy

NW 13

56%

32°

12 PM

53°

49°

Clear

1%

0% Thunder
( 0% severe)

NW 13

45%

32°

3 PM

58°

56°

Clear

NW 12

39%

33°

6 PM

56°

54°

Clear

NW 8

42%

33°


ST. LOUIS, MO extended weather forecast
Monday 6 APR 2026	Tuesday 7 APR 2026	Wednesday 8 APR 2026	Thursday 9 APR 2026	Friday 10 APR 2026
Low 42°	Low 34°	Low 39°	Low 50°	Low 55°
High 60°	High 53°	High 67°	High 72°	High 75°

Mostly Cloudy 25% Rain	Mostly Cloudy 26% Rain	Partly Cloudy 19% Rain	Partly Cloudy 26% Rain	Partly Cloudy 28% Rain

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