Temperature & Precipitation
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Temperature (°C)	23	22	22	23	23	22	21	21	21	21	20	20	20	20	21	22	24	24	24	23	22	21	20	19
Precipitation (mm/hr)	1.29	0.8	0.67	0.09	0.08	0.01	0.01	0.02	0.02	0.07	0.06	0.03	0.02	0.02	0.03	0.02	0.05	0.03	0.04	0.07	0.09	0.01	0	0.01

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Cloud cover (%)	90	96	100	100	100	100	100	100	100	100	100	100	100	100	100	99	97	65	84	60	67	82	34	87
Rain chance (%)	76	72	71	52	43	35	35	36	35	40	39	35	33	31	30	24	21	15	19	20	26	24	16	28

Wind speed and direction

Wind & Wind gust
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Wind (m/s)	4.69	3.89	3.11	2.81	4.5	4.89	5.11	4.89	5	5.39	6.19	6.5	6.39	6.31	6.39	6.39	7.11	6.11	6.11	5.81	5.31	4.39	3.5	3.19
Wind gust (m/s)	7.5	6.75	4.97	4.22	6.72	7.14	7.31	7.17	7.14	7.64	8.78	9	8.92	8.81	8.75	8.03	8.17	7.78	7.81	8.25	8.47	7.03	6.08	5.69
Wind direction (°)	SSE 152°	SSE 154°	S 172°	W 259°	WNW 300°	NW 309°	NW 311°	NW 325°	NNW 341°	NNW 348°	N 355°	N 354°	N 356°	N 357°	N 7°	NNE 13°	NNE 13°	NNE 17°	NNE 20°	NNE 15°	NNE 13°	N 10°	N 3°	N 355°

Air humidity

Humidity
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Humidity (%)	96	98	98	97	98	98	98	97	96	96	95	94	92	90	85	78	70	72	71	78	84	86	89	91

Atmospheric pressure

Pressure
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
Pressure (mm Hg)	754	753	753	753	753	753	754	754	755	755	756	757	757	757	758	758	757	758	758	758	758	758	759	759

Ultraviolet index

UV Index
Time	00:00	01:00	02:00	03:00	04:00	05:00	06:00	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00	20:00	21:00	22:00	23:00
UV Index	0	0	0	0	0	0	0	0	0.2	0.5	0.7	1.4	1.9	2.4	6.9	3.7	3.4	1.9	0.9	0.2	0	0	0	0

← Fri, Jul 31

Sat, Aug 1, 2026

Sun, Aug 2 →

St. Louis on the map

Data Sources & Methodology

Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.

Learn more about our methodology →