The official National Weather Service forecast for Riverside — 39.1775°N, 94.613°W, 0.9 miles from I-29. Forecasts here are written by NWS EAX, this county’s forecast office.
| Platte County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 39 | 44 | 56 | 66 | 76 | 85 | 88 | 87 | 80 | 68 | 55 | 43 | 66 |
| Avg low °F | 20 | 23 | 34 | 44 | 54 | 64 | 68 | 66 | 58 | 45 | 34 | 24 | 44 |
| Precip in | 1.1 | 1.3 | 2.3 | 3.7 | 5.2 | 5.2 | 4.1 | 4.4 | 3.3 | 3.4 | 1.9 | 1.4 | 37.3 |
1996–2025 normals for Platte County — the climate division Riverside sits in. All-time county record high 108.1°F (1954-07-13); record low -21.6°F (1989-12-23). Source: NOAA / National Weather Service.