| Latest RWIS Atmospheric Data as of Thu Mar 12 11:11 AM 2026 |
| O B S |
Location | Elev. (feet) |
Date | Time | Temp (ºF) |
Dew Point (ºF) |
Rel Hum (%) |
Wind Dir |
Wind Speed (mph) |
Peak Wind (mph) |
Sea-Level Pressure (in. Hg) |
Precip and Intensity |
Precip Rate (in/hr) |
Visibility (mi) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | Ashland I-93 | 600 | Thu 12-Mar-2026 | 11:04AM EDT | 42.6 | 30.4 | 61 | W | 6.0 | 17.2 | 28.98 | None | 0.000 | 1.2 |
| Bow | 351 | Thu 12-Mar-2026 | 11:05AM EDT | ||||||||||
| Canterbury I-93 | 585 | Thu 12-Mar-2026 | 11:05AM EDT | 43.3 | 27.1 | 53 | WNW | 5.1 | 14.8 | 29.01 | 1.2 | ||
| Derry I-93 | 247 | Thu 12-Mar-2026 | 11:04AM EDT | 47.1 | 35.4 | 63 | W | 6.5 | 14.8 | 29.34 | None | 0.000 | 1.2 |
| Echo Lake | 1856 | Thu 12-Mar-2026 | 11:05AM EDT | 35.2 | 30.2 | 82 | ENE | 2.0 | 16.3 | 30.86 | None | 0.000 | 1.2 |
| Epping Rt.101 | 141 | Thu 12-Mar-2026 | 11:04AM EDT | 47.3 | 35.8 | 64 | |||||||
| Hampton Rt 101 | Thu 12-Mar-2026 | 11:05AM EDT | 46.8 | 46.8 | W | 1.8 | 7.8 | 29.58 | LGT Precip | 0.000 | 1.2 | ||
| I-89 SB MM 31.4 Sutton/New London | Thu 12-Mar-2026 | 11:05AM EDT | 39.7 | 30.4 | 69 | ENE | 12.8 | 23.9 | 28.38 | None | 0.000 | 1.2 | |
| LaFayette | 1768 | Thu 12-Mar-2026 | 11:05AM EDT | 35.4 | 27.5 | 72 | ENE | 20.1 | 35.6 | 30.90 | None | 0.000 | 1.2 |
| Lincoln Exit 33 | 916 | Thu 12-Mar-2026 | 11:04AM EDT | 40.1 | 28.4 | 62 | WNW | 9.2 | 22.4 | None | 0.000 | 1.2 | |
| Littleton I-93 | 869 | Thu 12-Mar-2026 | 11:04AM EDT | 38.3 | 28.0 | 66 | NE | 1.3 | 2.2 | 28.72 | None | 0.000 | 1.2 |
| Lost River Rt. 112 | 1822 | Thu 12-Mar-2026 | 11:04AM EDT | 35.1 | 28.9 | 78 | NNW | 13.2 | 25.3 | 27.69 | None | 0.000 | 1.2 |
| Manchester I-293 | 244 | Thu 12-Mar-2026 | 11:05AM EDT | 45.9 | 31.6 | 57 | NNW | 10.5 | 21.9 | 29.35 | LGT Precip | 0.400 | 1.2 |
| New Ipswich Rt 124 | 1075 | Thu 12-Mar-2026 | 11:04AM EDT | 39.7 | 31.5 | 72 | NW | 4.3 | 15.7 | LGT Precip | 0.700 | 1.2 | |
| Portsmouth I-95 | Thu 12-Mar-2026 | 11:05AM EDT | 48.7 | 44.1 | 84 | WSW | 3.4 | 8.3 | 29.51 | LGT Precip | 0.400 | 1.2 | |
| Roxbury-Sullivan Rt 9 | Thu 12-Mar-2026 | 11:05AM EDT | 37.2 | 32.0 | 82 | N | 3.6 | 9.8 | 28.58 | LGT Precip | 0.400 | 1.2 | |
| Rt. 4 WB Northwood | Thu 12-Mar-2026 | 11:05AM EDT | 44.8 | 29.8 | 56 | NW | 6.9 | 16.8 | 28.95 | LGT Precip | 0.000 | 1.2 | |
| Rt. 16 SB Exit 17 Milton | Thu 12-Mar-2026 | 11:05AM EDT | 45.9 | 35.2 | 66 | NW | 5.4 | 11.9 | 29.10 | LGT Precip | 0.000 | 1.2 | |
| Rt. 16 SB MM 32 Milton | Thu 12-Mar-2026 | 11:05AM EDT | 44.1 | 37.0 | 76 | NNW | 3.4 | 12.3 | 28.96 | None | 0.000 | 1.2 | |
| Rt.16 SB Rochester | Thu 12-Mar-2026 | 11:05AM EDT | 46.9 | 31.6 | 55 | WNW | 11.0 | 26.4 | 29.33 | LGT Precip | 0.000 | 1.2 | |
| Rt.16 SB Wakefield | Thu 12-Mar-2026 | 11:05AM EDT | 42.8 | 38.5 | 85 | WSW | 2.7 | 9.8 | 28.56 | None | 0.000 | 1.2 | |
| Rt. 101 WB Exeter MM 128.4 | Thu 12-Mar-2026 | 11:05AM EDT | 46.8 | 40.8 | 80 | WSW | 8.9 | 15.0 | 29.47 | LGT Precip | 0.000 | 1.2 | |
| Rt. 101 WB Peterborough | Thu 12-Mar-2026 | 11:05AM EDT | 37.8 | 31.3 | 78 | NW | 7.2 | 19.2 | 28.13 | LGT Precip | 0.400 | 1.2 | |
| Rt.106 Loudon | Thu 12-Mar-2026 | 11:05AM EDT | 41.4 | 30.9 | 66 | NNW | 5.6 | 13.0 | 29.03 | LGT Precip | 0.400 | 1.2 | |
| Rt. 115 Jefferson | Thu 12-Mar-2026 | 11:05AM EDT | 35.6 | 28.4 | 75 | NW | 11.2 | 21.0 | 28.04 | None | 0.000 | 1.2 | |
| Rt 16 NB Ossipee | Thu 12-Mar-2026 | 11:05AM EDT | 46.4 | 34.5 | 63 | W | 5.1 | 11.9 | 29.08 | None | 0.000 | 1.2 | |
| Salem I-93 | 85 | Thu 12-Mar-2026 | 11:04AM EDT | 47.8 | 35.1 | 61 | WNW | 6.3 | 12.5 | 29.44 | None | 0.000 | 1.2 |
| Sanbornton I-93 | 720 | Thu 12-Mar-2026 | 11:05AM EDT | 40.5 | 28.9 | 64 | WNW | 8.5 | 16.8 | 28.82 | LGT Precip | 0.000 | 1.2 |
| Springfield I-89 | 1402 | Thu 12-Mar-2026 | 11:04AM EDT | 38.8 | 25.9 | 59 | NNW | 6.9 | 19.5 | 29.59 | None | 0.000 | 1.2 |
| Warner I-89 | 413 | Thu 12-Mar-2026 | 11:05AM EDT | 42.6 | 31.1 | 64 | SW | 5.8 | 16.1 | 29.12 | LGT Precip | 0.000 | 1.2 |
| Westmoreland Rt. 9 | 1145 | Thu 12-Mar-2026 | 11:04AM EDT | 36.9 | 32.5 | 84 | WSW | 4.9 | 14.1 | 26.64 | LGT Precip | 0.400 | 1.2 |
| Woodstock I-93 | 680 | Thu 12-Mar-2026 | 11:05AM EDT | 41.5 | 30.4 | 64 | NNW | 15.2 | 25.1 | 28.86 | None | 0.000 | 1.2 |
- This page displays the latest atmospheric data received from the NHDOT Environmental Sensor Stations (ESS) located on various NH highways and NHDOT facilities that provide such data.
- Clicking the
icon to the left of a site, will display all of the observations for that site for the current day.
- The Lafayette site is located near the campground in Franconia Notch. The Echo Lake site is located just north of the Franconia Notch.
- At most sites, the highest reported visibility will be 1.1 miles. Exceptions are as follows: 1.2 miles for Echo Lake, LaFayette, Littleton and New Ipswich; Salem and Ashland have newer sensors and can report visibility as high as 7.1 miles; and Dover can report visibilities up to 12.4 miles.
- Precipitation can be listed as "None" for no precipitation, "Recent" if it just recently ended, or "Now" if it just started.
- When precipitation has been detected and an intensity has been determined, precipitation intensities are listed as "LGT" for light or "MOD" for moderate or "HVY" for heavy.
- The entry, "Precip", following a reported intensity usually means rain or drizzle or an indeterminate type of precipitation.
- When snow/ice has been identified by the sensor, the precipitation type following the intensity will be listed as "Snow".
- Missing or not reported data are left as blank entries.
- This page will automatically refresh every 5 minutes.