The official National Weather Service forecast for Jasonville — 39.1631°N, 87.1992°W, 19.2 miles from I-70. Forecasts here are written by NWS IND, this county’s forecast office.
| Greene County | J | F | M | A | M | J | J | A | S | O | N | D | Year |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 38 | 43 | 54 | 66 | 75 | 83 | 86 | 85 | 80 | 68 | 54 | 43 | 65 |
| Avg low °F | 21 | 24 | 33 | 42 | 53 | 61 | 65 | 63 | 56 | 44 | 34 | 26 | 44 |
| Precip in | 3.4 | 2.8 | 4.0 | 5.1 | 5.2 | 5.3 | 4.6 | 3.1 | 3.3 | 3.7 | 3.5 | 3.5 | 47.5 |
1996–2025 normals for Greene County — the climate division Jasonville sits in. All-time county record high 105.4°F (2012-07-08); record low -25.3°F (1994-01-19). Source: NOAA / National Weather Service.